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CN116803274A - An improved oil, manganese and copper mixed agent for citrus and its preparation method and application - Google Patents

An improved oil, manganese and copper mixed agent for citrus and its preparation method and application Download PDF

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Publication number
CN116803274A
CN116803274A CN202310754809.2A CN202310754809A CN116803274A CN 116803274 A CN116803274 A CN 116803274A CN 202310754809 A CN202310754809 A CN 202310754809A CN 116803274 A CN116803274 A CN 116803274A
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China
Prior art keywords
citrus
parts
manganese
copper
oil
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Chinese (zh)
Inventor
刘吉敏
邓铁军
黄其椿
刘丽辉
韦丽荣
秦梓原
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Guangxi Zhuang Nationality Autonomous Region Academy of Agricultural Sciences
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Guangxi Zhuang Nationality Autonomous Region Academy of Agricultural Sciences
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/16—Heavy metals; Compounds thereof
    • A01N59/20—Copper
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
    • A01G17/005—Cultivation methods
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G7/00—Botany in general
    • A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
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    • A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
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    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/12—Powders or granules
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    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/24—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing ingredients to enhance the sticking of the active ingredients
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    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/26—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests in coated particulate form
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    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/30—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests characterised by the surfactants
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    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/42—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing within the same carbon skeleton a carboxylic group or a thio analogue, or a derivative thereof, and a carbon atom having only two bonds to hetero atoms with at the most one bond to halogen, e.g. keto-carboxylic acids
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    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
    • A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
    • A01N43/14—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
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    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
    • A01N47/12—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring
    • A01N47/14—Di-thio analogues thereof
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Abstract

本发明涉及一种改进型柑橘用油锰铜混合药剂及其制备方法与应用，将99%矿物油乳油、77%氢氧化铜水分散粒剂，80%代森锰锌粉剂、1.8%阿维菌素微乳剂四种药剂混配使用，混配后，矿物油不会分层，混配安全，不会出现混配不均导致的药害；按照柑橘物候期，用油锰铜阿维菌素防治解决柑橘全年病虫害，每年使用6次，可降低农户30%的农药使用成本；该油锰铜阿维菌素组合属于矿物源农药和微生物源农药的组合，在作物及果实上几乎没有残留，解决了各类农药带来的残留时期长的问题，可作为有机果品的首选药剂组合。The invention relates to an improved oil-manganese-copper mixed agent for citrus and its preparation method and application. It consists of 99% mineral oil emulsifiable concentrate, 77% copper hydroxide water-dispersible granules, 80% mancozeb powder, and 1.8% avitamin. The four agents of mycocin microemulsion are mixed and used. After mixing, the mineral oil will not stratify, the mixing is safe, and there will be no phytotoxicity caused by uneven mixing; according to the phenological stage of citrus, use oil manganese copper Avebacterium It can prevent and control citrus pests and diseases throughout the year. It can be used 6 times a year, which can reduce farmers’ pesticide use costs by 30%. The combination of oil, manganese, copper and abamectin is a combination of mineral-derived pesticides and microbial-derived pesticides, and has almost no effect on crops and fruits. Residue, solves the problem of long residue period caused by various pesticides, and can be used as the first choice of pesticide combination for organic fruits.

Description

Improved oil-manganese-copper mixed medicament for citrus and preparation method and application thereof
Technical Field
The invention relates to the technical field of citrus planting, in particular to an improved oil-manganese-copper mixed medicament for citrus, and a preparation method and application thereof.
Background
Citrus (Citrus reticulata Blanco) belongs to the family rutaceae and is a generic name of citrus, orange, kumquat, pomelo, hovenia dulcis, lemon and the like. China is one of important origin places of oranges, has abundant resources of the oranges, various excellent varieties and cultivation history of over 4000 years. The citrus fruits are precious fruits of human beings after long-term cultivation and selection. Is the fruit tree with the largest cultivation area in China, the total cultivation area in 2019 is 4155.23 ten thousand mu, and the total yield is 4365.57 ten thousand tons. The fruit tree is also the fruit tree with the largest cultivation area and highest yield in Guangxi, the yield is more than half of that of Guangxi fruits, the area of the citrus in 2022 is 948 mu, 1868 mu ton, and the total yield of citrus in China is 28.37%. Therefore, the citrus industry is a prop industry with village happiness, and has important and profound significance for promoting the income increase of peasants-!
Citrus, orange and tangerine are three different kinds of citrus fruits and are easily confused by people due to their similar shapes. Citrus is a generic name of orange, mandarin orange, kumquat, pomelo, hovenia dulcis and the like, and the names of the orange and the tangerine have been disordered for a long time. The orange is a basic seed, the flower is small, the peel is good, and the embryo of the seed is dark green; the citrus is a hybrid of oranges, such as oranges, sweet oranges and the like, the flowers are big, the peeling of fruits is not as good as that of oranges, and the embryo of the seed is light green. Due to improper management during the citrus growth process, citrus trees can suffer from canker, citrus sandy skin, white scab, anthracnose, soot disease, scab and other diseases. Wherein, anthracnose can be harmful to the whole citrus tree, the disease on the leaves is light brown aiming at the leaf margin or leaf tip, the speckles are irregular, and the speckles contain black spots and are concentrically dispersed in a wheel shape. When severe, the leaf is provided with acute disease spots, so that the front and back surfaces of the disease spots are scattered and distributed to cover a plurality of mucilaginous red spots, and the leaf is further deepened to fall off, thereby affecting the growth of citrus. Soot disease can occur on leaves, branch tips and fruits of citrus trees, so that mould layers appear at diseased positions, black spots grow on the mould layers, and when serious, the mould layers on the surfaces are aggravated as if the mould layers are a layer of coal ash, thereby inhibiting the normal growth of citrus, finally causing the falling of leaves or fruits, and reducing the yield and quality of citrus. Scab occurs in tender parts of citrus trees, such as new leaves, young shoots, tender fruits, and the like. Early stage of disease occurrence, withered and yellow leaves, and then spread symptoms, so that the leaves are wood-tied, the leaves are malformed to grow, and the phenomena of flower falling, leaf falling and fruit falling appear, so that the quality of fruits is reduced. The common insect pests of citrus include red spiders, bud maggots and vector apices. Red spiders are serious insect pests causing citrus yield reduction, and are frequently generated in 4 months and 5 months, the reproduction capacity of the red spiders is strong, the offspring reproduction is faster, the damage relates to the front surface of the leaf, the leaf is grey white, the green is lost, the normal photosynthesis of citrus trees is affected, and the plant growth is inhibited. Yellow spiders are opposite in habit to red spiders and are mainly harmful to the back of leaves. Flower bud maggots are also one of insect pests which cause citrus yield reduction, are frequently generated in the middle ten days of 4 months, and mainly harm the flower bud parts of citrus trees, so that the process of flowering and fruiting of citrus is hindered, and the citrus yield reduction is caused. The new branch tip of the citrus tree is damaged by the vector tip medium, and the insect pest occurs for 3 generations in one year, namely in the late 5 months, the middle 7 months and the early 9 months respectively. The imago absorbs nutrients required by the growth of the imago on the branches and leaves and spawns, and the nymphs harm tender branches and buds, so that the tender leaves are deformed and the damage such as soot disease can be induced.
The traditional citrus pest control method at present comprises the following steps: the use method is that oil copper (99% mineral oil emulsifiable concentrate and 30% copper-king suspending agent) is used for preventing and treating canker, oil manganese (99% mineral oil emulsifiable concentrate and 80% mancozeb powder) is used for preventing and treating citrus sandy skin disease, white scab and the like, and oil abamectin (99% mineral oil emulsifiable concentrate and 1.8% abamectin emulsifiable concentrate) is used for preventing and treating citrus red spider basically in a mixed mode; the traditional citrus pest control method has the following defects: 1) Traditional mineral oil layering causes unsafe mixing and chemical injury; 2) The mineral oil and the copper foil are mixed to release copper ions, the copper ions are oxidized with higher content, and the white sponge layer in the orange peel is easy to turn blue; 3) The avermectin with the concentration of 1.8% is almost all missible oil, and because the missible oil needs dimethylbenzene or methylbenzene as a solvent, the cost is low, a plurality of enterprises select missible oil formulations, and the risk of phytotoxicity such as water accumulation spots at the bottoms of flowers and fruits and the like after the avermectin missible oil is mixed is obviously increased in nearly two years; 4) The mixed use of two by two is easy to cause phytotoxicity, and more than three medicaments are mixed for use, so that the phytotoxicity is more easy to occur; 5) Large dosage, high cost and easy pesticide residue.
Disclosure of Invention
Aiming at the defects of the prior art, the invention discloses an improved oil-manganese-copper mixed medicament for citrus and a preparation method and application thereof, and aims to solve the problems of large phytotoxicity risk, large dosage, high dosage cost, easiness in causing pesticide residues and the like in the traditional citrus pest control method.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: an improved citrus oil-manganese-copper mixed medicament, which comprises the following components in parts by weight: 55-65 parts of 99% mineral oil emulsifiable concentrate, 8-12 parts of 77% copper hydroxide water dispersible granule, 28-32 parts of 80% mancozeb powder, 18-22 parts of 1.8% avermectin microemulsion, 0.1-0.2 part of mineral oil emulsifiable concentrate modifier, 0.5-0.8 part of copper hydroxide slow release agent and 0.1-0.2 part of avermectin microemulsion modifier;
the mineral oil emulsifiable concentrate modifier is used for preventing the mineral oil emulsifiable concentrate from layering after being mixed and avoiding the phytotoxicity caused by the mineral oil emulsifiable concentrate layering; the mineral oil emulsifiable modifier consists of the following components in parts by weight: 4-6 parts of polyvinyl alcohol, 1-2 parts of nonylphenol polyoxyethylene ether and 0.3-0.5 part of sodium polyacrylate;
the copper hydroxide slow release agent is characterized by slow release of copper ions and prevention of chemical injury of copper preparations, and comprises the following components in parts by weight: 10-15 parts of alpha-cyclodextrin and 8-12 parts of gamma-cyclodextrin;
the avermectin microemulsion modifier is characterized by preventing water spots from occurring at the bottom of fruits, and is chitosan oligosaccharide.
Further, the improved citrus oil-manganese-copper mixed medicament comprises the following components in parts by weight: 60 to 65 parts of 99% mineral oil emulsifiable concentrate, 10 to 12 parts of 77% copper hydroxide water dispersible granule, 30 to 32 parts of 80% mancozeb powder, 20 to 22 parts of 1.8% avermectin microemulsion, 0.15 to 0.2 part of mineral oil emulsifiable concentrate modifier, 0.6 to 0.8 part of copper hydroxide slow release agent and 0.15 to 0.2 part of avermectin microemulsion modifier.
Further, the mineral oil emulsifiable concentrate modifier is used for preventing the mineral oil emulsifiable concentrate from layering after being mixed, and avoiding the phytotoxicity caused by the mineral oil emulsifiable concentrate layer; the mineral oil emulsifiable modifier consists of the following components in parts by weight: 5 to 6 parts of polyvinyl alcohol, 1.5 to 2 parts of nonylphenol polyoxyethylene ether and 0.4 to 0.5 part of sodium polyacrylate.
Further, the copper hydroxide slow release agent is characterized by slowly releasing copper ions and preventing the chemical injury of copper preparations, and comprises the following components in parts by weight: 12-15 parts of alpha-cyclodextrin and 10-12 parts of gamma-cyclodextrin.
Further, the avermectin microemulsion modifier also comprises methyl jasmonate; the avermectin microemulsion modifier consists of the following components in parts by weight: 20-25 parts of chitosan oligosaccharide and 10-15 parts of methyl jasmonate.
Further, the avermectin microemulsion modifier consists of the following components in parts by weight: 22-25 parts of chitosan oligosaccharide and 12-15 parts of methyl jasmonate.
Further, the product fineness of the 77% copper hydroxide water dispersible granule is 1-1.5 mu m.
Further, the product granularity of the 80% mancozeb powder is 800-850 meshes.
The invention also provides a preparation method of the improved citrus oil-manganese-copper mixed medicament, which comprises the following steps:
1) Weighing the components according to the composition proportion of the improved oil-manganese-copper mixed medicament for citrus; dividing the mineral oil emulsifiable concentrate modifier into two equal parts, adding one part of the mineral oil emulsifiable concentrate modifier and the 80% mancozeb powder into the 99% mineral oil emulsifiable concentrate, and uniformly mixing to obtain a first mixture;
2) Sequentially adding a copper hydroxide slow release agent and 77% copper hydroxide water dispersible granules into the first mixture, and uniformly mixing to obtain a second mixture;
3) Adding 1.8% of avermectin microemulsion and an avermectin microemulsion modifier into the second mixture, and uniformly mixing to obtain a third mixture;
4) And adding another part of the mineral oil emulsifiable concentrate modifier into the third mixture, and uniformly mixing to obtain the improved oil-manganese-copper mixed medicament for citrus.
The invention also provides application of the improved oil-manganese-copper mixed medicament for citrus in preventing and controlling annual disease and insect pests of citrus, and the improved oil-manganese-copper mixed medicament for citrus is used for 6 times each year to solve annual disease and insect pests of citrus; the specific service time and method of the improved oil-manganese-copper mixed medicament for citrus are as follows:
(1) Spraying 200-250 times of the improved oil-manganese-copper mixed medicament for citrus to the whole plant before germination;
(2) 10-15 days before flowering, spraying 500-550 times of the improved oil-manganese-copper mixed agent for citrus on the whole plant;
(3) When the flower falls by about 2/3, spraying 400-450 times of the improved oil-manganese-copper mixed agent for citrus on the whole plant;
(4) Spraying 150-200 times of the improved oil-manganese-copper mixed agent for citrus in the young fruit period;
(5) Spraying 180-200 times of the improved oil-manganese-copper mixed medicament for citrus in Qiu Shao period;
(6) After fruit picking in winter, the improved oil-manganese-copper mixed agent for citrus is sprayed on the whole plant 300-350 times of liquid.
The invention relates to an improved oil-manganese-copper mixed medicament for citrus, and a preparation method and application thereof, wherein 99% of mineral oil emulsifiable concentrate, 77% of copper hydroxide water dispersible granule, 80% of mancozeb powder and 1.8% of abamectin microemulsion are mixed for use, and the four medicaments have the following advantages after mixing:
1. The pesticide consumption is reduced, the pesticide spraying times are reduced, and the cost-reducing and efficacy-enhancing blending effect is truly achieved;
2. after mixing, the mineral oil is not layered, the mixing is safe, and the phytotoxicity caused by uneven mixing can not occur;
3. according to the citrus waiting period, the oil-copper avermectin is used for preventing and controlling the citrus annual plant diseases and insect pests, and the pesticide is used for 6 times per year, so that the pesticide use cost of farmers can be reduced by 30%;
4. the oil-manganese-copper avermectin composition belongs to a combination of mineral-source pesticides and microbial-source pesticides, almost has no residue on crops and fruits, solves the problem of long residue period caused by various pesticides, and can be used as a preferred medicament combination of organic fruits;
5. the problem that water accumulation spots appear at the bottoms of flowers and fruits after the avermectin emulsifiable concentrate is mixed is practically solved;
6. further slowly releasing the copper hydroxide water dispersible granule to release copper ions, and effectively avoiding the blue color of the orange intradermally white sponge layer.
According to the improved oil-manganese-copper mixed medicament for citrus, as well as the preparation method and the application thereof, the cupric hydroxide water dispersible granule in the improved oil-manganese-copper mixed medicament for citrus can be adhered to the surface of crops after being sprayed on the crops, so that a layer of protective film is formed, the protective film is not easy to wash by rain water, and copper ions are released under certain humidity, so that the effects of sterilization and disease prevention are achieved; the copper hydroxide slow release agent consists of alpha-cyclodextrin and gamma-cyclodextrin, and further slowly releases 77% of copper hydroxide water dispersible granules to release copper ions by virtue of the solubility and inclusion capacity of the copper hydroxide slow release agent in water, so that the copper ions are prevented from being oxidized with higher content, and the blue-turning of a white sponge layer in citrus peel is effectively avoided; the mineral oil emulsifiable concentrate modifier consists of polyvinyl alcohol, polyoxyethylene nonylphenol ether and sodium polyacrylate, wherein the polyvinyl alcohol is an emulsion stabilizer, the polyoxyethylene nonylphenol ether is a surfactant, and the sodium polyacrylate has negative charges, so that active ingredients of the medicament can be stably dispersed into a mixed medicament, and the three components are matched, so that layering of the mineral oil emulsifiable concentrate after mixing can be effectively prevented, and phytotoxicity caused by the mineral oil emulsifiable concentrate layer can be avoided; the 1.8% avermectin of the emulsifiable concentrate is prepared by using dimethylbenzene or methylbenzene as a solvent, so that the risk of phytotoxicity such as water accumulation spots at the bottoms of flowers and fruits after the avermectin emulsifiable concentrate is mixed is obviously increased, and chitosan oligosaccharide serving as an avermectin microemulsion modifier is added, and the chitosan oligosaccharide is positive-charge cation alkaline amino oligosaccharide, has strong putrefying bacteria inhibiting performance, and can effectively prevent the water accumulation spots at the bottoms of the fruits when being matched.
According to the improved oil-manganese-copper mixed medicament for citrus and the preparation method and application thereof, a proper amount of methyl jasmonate is also added into the avermectin microemulsion modifier, so that the expression of defensive plant genes can be stimulated, the chemical defenses of plants are induced, the effects similar to mechanical damage and insect feeding are generated, and the citrus peel is brighter when the modified oil-manganese-copper mixed medicament is matched for use; the copper hydroxide is acidified by water films on the plant surface and the pathogenic bacteria surface by using 77% copper hydroxide water sizing agent, copper ions released slowly act on protein in fungi and bacteria, so that the germination of pathogenic bacteria spores and the growth of hyphae are effectively inhibited, the pathogenic bacteria death is caused, diseases can be quickly and directly reached, the ulcer disease spots are locked, the fineness of the product is controlled to be 1-1.5 microns, and the problem of the copper preparation phytotoxicity caused by large particle size can be effectively solved; the traditional mesh number of mancozeb is 325 meshes, and the mesh number of mancozeb is controlled to be about 800 meshes, so that the mixing risk caused by the fineness problem of mancozeb can be solved, and the overall stability of the improved oil-manganese-copper mixed medicament for citrus is higher.
Detailed Description
The following examples will assist those skilled in the art in a more complete understanding of the invention, but are not intended to limit the invention in any way.
According to the improved citrus oil-manganese-copper mixed medicament, as well as the preparation method and application thereof, the 99% mineral oil missible oil can be selected from common domestic mineral oil missible oil, and when the common domestic mineral oil missible oil is selected (the common domestic mineral oil missible oil is selected in the following examples and comparative examples), the problems of unsafe mixing and phytotoxicity caused by mineral oil layering are not avoided, and the mineral oil missible oil modifier is needed to be added to prevent the mixing and layering; when the 99% mineral oil emulsifiable concentrate which is developed by the latest technology of the telian chemical company, usa and is used for converting the emulsion after the secondary emulsification into the micro-particles of the oil-in-water type is selected, the problem of difficult mixing delamination of the emulsifiable concentrate is solved, and the mineral oil emulsifiable concentrate modifier can be selectively added, so that the problem of phytotoxicity caused by unsafe mixing due to the traditional mineral oil layering is solved, but the problem of higher cost is solved.
Example 1: preparation and application methods of improved citrus oil-manganese-copper mixed medicament
An improved citrus oil-manganese-copper mixed medicament, which comprises the following components in parts by weight: 55 parts of 99% mineral oil emulsifiable concentrate, 8 parts of 77% copper hydroxide water dispersible granule, 28 parts of 80% mancozeb powder, 18 parts of 1.8% avermectin microemulsion, 0.1 part of mineral oil emulsifiable concentrate modifier, 0.5 part of copper hydroxide slow release agent and 0.1 part of avermectin microemulsion modifier; the product fineness of the 77% copper hydroxide water dispersible granule is 1 mu m; the product granularity of the 80% mancozeb powder is 800 meshes;
The mineral oil emulsifiable modifier consists of the following components in parts by weight: 4 parts of polyvinyl alcohol, 1 part of nonylphenol polyoxyethylene ether and 0.3 part of sodium polyacrylate;
the copper hydroxide slow release agent comprises the following components in parts by weight: 10 parts of alpha-cyclodextrin and 8 parts of gamma-cyclodextrin;
the avermectin microemulsion modifier consists of the following components in parts by weight: 20 parts of chitosan oligosaccharide and 10 parts of methyl jasmonate.
The preparation method of the improved oil-manganese-copper mixed medicament for citrus comprises the following steps:
1) Weighing the components according to the composition proportion of the improved oil-manganese-copper mixed medicament for citrus; dividing the mineral oil emulsifiable concentrate modifier into two equal parts, adding one part of the mineral oil emulsifiable concentrate modifier and the 80% mancozeb powder into the 99% mineral oil emulsifiable concentrate, and uniformly mixing at room temperature under the condition that the stirring speed is 100r/min to obtain a first mixture;
2) Sequentially adding a copper hydroxide slow release agent and 77% copper hydroxide water dispersible granules into the first mixture, and uniformly mixing at room temperature under the condition that the stirring rate is 100r/min to obtain a second mixture;
3) Adding 1.8% avermectin microemulsion and avermectin microemulsion modifier into the second mixture, and uniformly mixing at room temperature under the condition of stirring speed of 100r/min to obtain a third mixture;
4) And adding another part of the mineral oil emulsifiable concentrate modifier into the third mixture, and uniformly mixing at room temperature under the condition that the stirring speed is 100r/min to obtain the improved oil-manganese-copper mixed medicament for citrus.
The invention also provides a use method of the improved oil-manganese-copper mixed medicament for citrus, which is used for 6 times per year, and solves the problem of disease and insect damage of citrus all year round; the specific service time and method of the improved oil-manganese-copper mixed medicament for citrus are as follows:
(1) Spraying the improved oil-manganese-copper mixed medicament 200 times of liquid for citrus before germination;
(2) 10 days before flowering, the 500 times of liquid of the improved oil-manganese-copper mixed agent for citrus is sprayed on the whole plant, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(3) When the flowers fall by about 2/3, the whole plant is sprayed with 400 times of the improved oil-manganese-copper mixed medicament for citrus, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(4) Spraying 150 times of the improved oil-manganese-copper mixed medicament for citrus in the young fruit period, wherein the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(5) The oil-manganese-copper mixed medicament for the improved citrus is sprayed 180 times of liquid in a Qiu Shao period, and the back of a new leaf and a leaf surface cannot be sprayed in a leakage way;
(6) After fruit picking in winter, the improved oil-manganese-copper mixed agent for citrus is sprayed on the whole plant 300 times of liquid, and the back of the leaf surface cannot be sprayed in a leakage way.
The results of the annual disease and pest control of citrus are shown in table 1 below;
TABLE 1
Example 2: preparation and application methods of improved citrus oil-manganese-copper mixed medicament
An improved citrus oil-manganese-copper mixed medicament, which comprises the following components in parts by weight: 65 parts of 99% mineral oil emulsifiable concentrate, 12 parts of 77% copper hydroxide water dispersible granule, 32 parts of 80% mancozeb zinc powder, 22 parts of 1.8% avermectin microemulsion, 0.2 part of mineral oil emulsifiable concentrate modifier, 0.8 part of copper hydroxide slow release agent and 0.2 part of avermectin microemulsion modifier; the product fineness of the 77% copper hydroxide water dispersible granule is 1.5 mu m; the product granularity of the 80% mancozeb powder is 850 meshes;
the mineral oil emulsifiable modifier consists of the following components in parts by weight: 6 parts of polyvinyl alcohol, 2 parts of nonylphenol polyoxyethylene ether and 0.5 part of sodium polyacrylate;
the copper hydroxide slow release agent comprises the following components in parts by weight: 15 parts of alpha-cyclodextrin and 12 parts of gamma-cyclodextrin;
the avermectin microemulsion modifier consists of the following components in parts by weight: 25 parts of chitosan oligosaccharide and 15 parts of methyl jasmonate.
The preparation method of the improved oil-manganese-copper mixed medicament for citrus comprises the following steps:
1) Weighing the components according to the composition proportion of the improved oil-manganese-copper mixed medicament for citrus; dividing the mineral oil emulsifiable concentrate modifier into two equal parts, adding one part of the mineral oil emulsifiable concentrate modifier and the 80% mancozeb powder into the 99% mineral oil emulsifiable concentrate, and uniformly mixing at room temperature under the condition that the stirring speed is 100r/min to obtain a first mixture;
2) Sequentially adding a copper hydroxide slow release agent and 77% copper hydroxide water dispersible granules into the first mixture, and uniformly mixing at room temperature under the condition that the stirring rate is 100r/min to obtain a second mixture;
3) Adding 1.8% avermectin microemulsion and avermectin microemulsion modifier into the second mixture, and uniformly mixing at room temperature under the condition of stirring speed of 100r/min to obtain a third mixture;
4) And adding another part of the mineral oil emulsifiable concentrate modifier into the third mixture, and uniformly mixing at room temperature under the condition that the stirring speed is 100r/min to obtain the improved oil-manganese-copper mixed medicament for citrus.
The invention also provides a use method of the improved oil-manganese-copper mixed medicament for citrus, which is used for 6 times per year, and solves the problem of disease and insect damage of citrus all year round; the specific service time and method of the improved oil-manganese-copper mixed medicament for citrus are as follows:
(1) Spraying 250 times of the improved oil-manganese-copper mixed medicament for citrus on the whole plant before germination;
(2) The whole plant is sprayed with 550 times of the improved oil-manganese-copper mixed medicament for citrus 15 days before flowering, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(3) When the flowers fall by about 2/3, the whole plant is sprayed with 450 times of the improved oil-manganese-copper mixed medicament for citrus, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(4) Spraying the improved oil-manganese-copper mixed medicament for citrus with 200 times of liquid in the young fruit period, wherein the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(5) The improved oil-manganese-copper mixed medicament for citrus is sprayed on the whole plant in Qiu Shao period, and 200 times of liquid can not be sprayed on the back of a new leaf and a leaf surface;
(6) After fruit picking in winter, the improved oil-manganese-copper mixed agent for citrus is sprayed on the whole plant 350 times of liquid, and the back of the leaf surface cannot be sprayed in a leakage way.
The results of the annual disease and pest control of citrus are shown in table 2 below;
TABLE 2
Example 3: preparation and application methods of improved citrus oil-manganese-copper mixed medicament
An improved citrus oil-manganese-copper mixed medicament, which comprises the following components in parts by weight: 60 parts of 99% mineral oil emulsifiable concentrate, 10 parts of 77% copper hydroxide water dispersible granule, 30 parts of 80% mancozeb zinc powder, 20 parts of 1.8% avermectin microemulsion, 0.15 part of mineral oil emulsifiable concentrate modifier, 0.6 part of copper hydroxide slow release agent and 0.15 part of avermectin microemulsion modifier; the product fineness of the 77% copper hydroxide water dispersible granule is 1.5 mu m; the product granularity of the 80% mancozeb powder is 850 meshes;
The mineral oil emulsifiable modifier consists of the following components in parts by weight: 5 parts of polyvinyl alcohol, 1.5 parts of nonylphenol polyoxyethylene ether and 0.4 part of sodium polyacrylate;
the copper hydroxide slow release agent comprises the following components in parts by weight: 12 parts of alpha-cyclodextrin and 10 parts of gamma-cyclodextrin;
the avermectin microemulsion modifier consists of the following components in parts by weight: 22 parts of chitosan oligosaccharide and 12 parts of methyl jasmonate.
The preparation method of the improved oil-manganese-copper mixed medicament for citrus comprises the following steps:
1) Weighing the components according to the composition proportion of the improved oil-manganese-copper mixed medicament for citrus; dividing the mineral oil emulsifiable concentrate modifier into two equal parts, adding one part of the mineral oil emulsifiable concentrate modifier and the 80% mancozeb powder into the 99% mineral oil emulsifiable concentrate, and uniformly mixing at room temperature under the condition that the stirring speed is 100r/min to obtain a first mixture;
2) Sequentially adding a copper hydroxide slow release agent and 77% copper hydroxide water dispersible granules into the first mixture, and uniformly mixing at room temperature under the condition that the stirring rate is 100r/min to obtain a second mixture;
3) Adding 1.8% avermectin microemulsion and avermectin microemulsion modifier into the second mixture, and uniformly mixing at room temperature under the condition of stirring speed of 100r/min to obtain a third mixture;
4) And adding another part of the mineral oil emulsifiable concentrate modifier into the third mixture, and uniformly mixing at room temperature under the condition that the stirring speed is 100r/min to obtain the improved oil-manganese-copper mixed medicament for citrus.
The invention also provides a use method of the improved oil-manganese-copper mixed medicament for citrus, which is used for 6 times per year, and solves the problem of disease and insect damage of citrus all year round; the specific service time and method of the improved oil-manganese-copper mixed medicament for citrus are as follows:
(1) Spraying 220 times of the improved oil-manganese-copper mixed medicament for citrus on the whole plant before germination;
(2) The oil-manganese-copper mixed medicament 530 times of the liquid for the improved citrus is sprayed on the whole plant 12 days before flowering, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(3) When the flowers fall by about 2/3, the whole plant is sprayed with 420 times of the improved oil-manganese-copper mixed agent for citrus, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(4) Spraying 170 times of the improved oil-manganese-copper mixed medicament for citrus in the young fruit period, wherein the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(5) The improved oil-manganese-copper mixed medicament for citrus is sprayed on the whole plant in Qiu Shao period, and 190 times of liquid can not be sprayed on the back of a new leaf and a leaf surface;
(6) After fruit picking in winter, the improved oil-manganese-copper mixed agent 330 times of liquid for citrus is sprayed on the whole plant, and the back of the leaf surface cannot be sprayed in a leakage way.
The results of the annual disease and pest control of citrus are shown in table 3 below;
TABLE 3 Table 3
Example 4: preparation and application methods of improved citrus oil-manganese-copper mixed medicament
An improved citrus oil-manganese-copper mixed medicament, which comprises the following components in parts by weight: 60 parts of 99% mineral oil emulsifiable concentrate, 10 parts of 77% copper hydroxide water dispersible granule, 30 parts of 80% mancozeb zinc powder, 20 parts of 1.8% avermectin microemulsion, 0.15 part of mineral oil emulsifiable concentrate modifier, 0.6 part of copper hydroxide slow release agent and 0.15 part of avermectin microemulsion modifier; the product fineness of the 77% copper hydroxide water dispersible granule is 1.5 mu m; the product granularity of the 80% mancozeb powder is 850 meshes;
the mineral oil emulsifiable modifier consists of the following components in parts by weight: 5 parts of polyvinyl alcohol, 1.5 parts of nonylphenol polyoxyethylene ether and 0.4 part of sodium polyacrylate;
the copper hydroxide slow release agent comprises the following components in parts by weight: 12 parts of alpha-cyclodextrin and 10 parts of gamma-cyclodextrin;
the avermectin microemulsion modifier is chitosan oligosaccharide.
The preparation method of the improved oil-manganese-copper mixed medicament for citrus comprises the following steps:
1) Weighing the components according to the composition proportion of the improved oil-manganese-copper mixed medicament for citrus; dividing the mineral oil emulsifiable concentrate modifier into two equal parts, adding one part of the mineral oil emulsifiable concentrate modifier and the 80% mancozeb powder into the 99% mineral oil emulsifiable concentrate, and uniformly mixing at room temperature under the condition that the stirring speed is 100r/min to obtain a first mixture;
2) Sequentially adding a copper hydroxide slow release agent and 77% copper hydroxide water dispersible granules into the first mixture, and uniformly mixing at room temperature under the condition that the stirring rate is 100r/min to obtain a second mixture;
3) Adding 1.8% avermectin microemulsion and avermectin microemulsion modifier into the second mixture, and uniformly mixing at room temperature under the condition of stirring speed of 100r/min to obtain a third mixture;
4) And adding another part of the mineral oil emulsifiable concentrate modifier into the third mixture, and uniformly mixing at room temperature under the condition that the stirring speed is 100r/min to obtain the improved oil-manganese-copper mixed medicament for citrus.
The invention also provides a use method of the improved oil-manganese-copper mixed medicament for citrus, which is used for 6 times per year, and solves the problem of disease and insect damage of citrus all year round; the specific service time and method of the improved oil-manganese-copper mixed medicament for citrus are as follows:
(1) Spraying 220 times of the improved oil-manganese-copper mixed medicament for citrus on the whole plant before germination;
(2) The oil-manganese-copper mixed medicament 530 times of the liquid for the improved citrus is sprayed on the whole plant 12 days before flowering, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(3) When the flowers fall by about 2/3, the whole plant is sprayed with 420 times of the improved oil-manganese-copper mixed agent for citrus, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(4) Spraying 170 times of the improved oil-manganese-copper mixed medicament for citrus in the young fruit period, wherein the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(5) The improved oil-manganese-copper mixed medicament for citrus is sprayed on the whole plant in Qiu Shao period, and 190 times of liquid can not be sprayed on the back of a new leaf and a leaf surface;
(6) After fruit picking in winter, the improved oil-manganese-copper mixed agent 330 times of liquid for citrus is sprayed on the whole plant, and the back of the leaf surface cannot be sprayed in a leakage way.
The results of the annual citrus pest control are shown in table 4 below;
TABLE 4 Table 4
Example 5: preparation and application methods of improved citrus oil-manganese-copper mixed medicament
An improved citrus oil-manganese-copper mixed medicament, which comprises the following components in parts by weight: 60 parts of 99% mineral oil emulsifiable concentrate, 10 parts of 77% copper hydroxide water dispersible granule, 30 parts of 80% mancozeb zinc powder, 20 parts of 1.8% avermectin microemulsion, 0.15 part of mineral oil emulsifiable concentrate modifier, 0.6 part of copper hydroxide slow release agent and 0.15 part of avermectin microemulsion modifier; the product fineness of the 77% copper hydroxide water dispersible granule is 1.5 mu m; the product granularity of the 80% mancozeb powder is 325 meshes;
the mineral oil emulsifiable modifier consists of the following components in parts by weight: 5 parts of polyvinyl alcohol, 1.5 parts of nonylphenol polyoxyethylene ether and 0.4 part of sodium polyacrylate;
The copper hydroxide slow release agent comprises the following components in parts by weight: 12 parts of alpha-cyclodextrin and 10 parts of gamma-cyclodextrin;
the avermectin microemulsion modifier consists of the following components in parts by weight: 22 parts of chitosan oligosaccharide and 12 parts of methyl jasmonate.
The preparation method of the improved oil-manganese-copper mixed medicament for citrus comprises the following steps:
1) Weighing the components according to the composition proportion of the improved oil-manganese-copper mixed medicament for citrus; dividing the mineral oil emulsifiable concentrate modifier into two equal parts, adding one part of the mineral oil emulsifiable concentrate modifier and the 80% mancozeb powder into the 99% mineral oil emulsifiable concentrate, and uniformly mixing at room temperature under the condition that the stirring speed is 100r/min to obtain a first mixture;
2) Sequentially adding a copper hydroxide slow release agent and 77% copper hydroxide water dispersible granules into the first mixture, and uniformly mixing at room temperature under the condition that the stirring rate is 100r/min to obtain a second mixture;
3) Adding 1.8% avermectin microemulsion and avermectin microemulsion modifier into the second mixture, and uniformly mixing at room temperature under the condition of stirring speed of 100r/min to obtain a third mixture;
4) And adding another part of the mineral oil emulsifiable concentrate modifier into the third mixture, and uniformly mixing at room temperature under the condition that the stirring speed is 100r/min to obtain the improved oil-manganese-copper mixed medicament for citrus.
The invention also provides a use method of the improved oil-manganese-copper mixed medicament for citrus, which is used for 6 times per year, and solves the problem of disease and insect damage of citrus all year round; the specific service time and method of the improved oil-manganese-copper mixed medicament for citrus are as follows:
(1) Spraying 220 times of the improved oil-manganese-copper mixed medicament for citrus on the whole plant before germination;
(2) The oil-manganese-copper mixed medicament 530 times of the liquid for the improved citrus is sprayed on the whole plant 12 days before flowering, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(3) When the flowers fall by about 2/3, the whole plant is sprayed with 420 times of the improved oil-manganese-copper mixed agent for citrus, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(4) Spraying 170 times of the improved oil-manganese-copper mixed medicament for citrus in the young fruit period, wherein the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(5) The improved oil-manganese-copper mixed medicament for citrus is sprayed on the whole plant in Qiu Shao period, and 190 times of liquid can not be sprayed on the back of a new leaf and a leaf surface;
(6) After fruit picking in winter, the improved oil-manganese-copper mixed agent 330 times of liquid for citrus is sprayed on the whole plant, and the back of the leaf surface cannot be sprayed in a leakage way.
The results of the annual disease and pest control of citrus are shown in table 5 below;
TABLE 5
Comparative example 1: preparation and application methods of improved citrus oil-manganese-copper mixed medicament
An improved citrus oil-manganese-copper mixed medicament, which comprises the following components in parts by weight: 60 parts of 99% mineral oil emulsifiable concentrate, 10 parts of 77% copper hydroxide water dispersible granule, 20 parts of 1.8% avermectin microemulsion, 0.15 part of mineral oil emulsifiable concentrate modifier, 0.6 part of copper hydroxide slow release agent and 0.15 part of avermectin microemulsion modifier; the product fineness of the 77% copper hydroxide water dispersible granule is 1.5 mu m;
the mineral oil emulsifiable modifier consists of the following components in parts by weight: 5 parts of polyvinyl alcohol, 1.5 parts of nonylphenol polyoxyethylene ether and 0.4 part of sodium polyacrylate;
the copper hydroxide slow release agent comprises the following components in parts by weight: 12 parts of alpha-cyclodextrin and 10 parts of gamma-cyclodextrin;
the avermectin microemulsion modifier consists of the following components in parts by weight: 22 parts of chitosan oligosaccharide and 12 parts of methyl jasmonate.
The preparation method of the improved oil-manganese-copper mixed medicament for citrus comprises the following steps:
1) Weighing the components according to the composition proportion of the improved oil-manganese-copper mixed medicament for citrus; dividing the mineral oil emulsifiable concentrate modifier into two equal parts, adding one part of the mineral oil emulsifiable concentrate modifier into the 99% mineral oil emulsifiable concentrate, and uniformly mixing under the conditions of room temperature and stirring speed of 100r/min to obtain a first mixture;
2) Sequentially adding a copper hydroxide slow release agent and 77% copper hydroxide water dispersible granules into the first mixture, and uniformly mixing at room temperature under the condition that the stirring rate is 100r/min to obtain a second mixture;
3) Adding 1.8% avermectin microemulsion and avermectin microemulsion modifier into the second mixture, and uniformly mixing at room temperature under the condition of stirring speed of 100r/min to obtain a third mixture;
4) And adding another part of the mineral oil emulsifiable concentrate modifier into the third mixture, and uniformly mixing at room temperature under the condition that the stirring speed is 100r/min to obtain the improved oil-manganese-copper mixed medicament for citrus.
The invention also provides a use method of the improved oil-manganese-copper mixed medicament for citrus, which is used for 6 times per year, and solves the problem of disease and insect damage of citrus all year round; the specific service time and method of the improved oil-manganese-copper mixed medicament for citrus are as follows:
(1) Spraying 220 times of the improved oil-manganese-copper mixed medicament for citrus on the whole plant before germination;
(2) The oil-manganese-copper mixed medicament 530 times of the liquid for the improved citrus is sprayed on the whole plant 12 days before flowering, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(3) When the flowers fall by about 2/3, the whole plant is sprayed with 420 times of the improved oil-manganese-copper mixed agent for citrus, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(4) Spraying 170 times of the improved oil-manganese-copper mixed medicament for citrus in the young fruit period, wherein the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(5) The improved oil-manganese-copper mixed medicament for citrus is sprayed on the whole plant in Qiu Shao period, and 190 times of liquid can not be sprayed on the back of a new leaf and a leaf surface;
(6) After fruit picking in winter, the improved oil-manganese-copper mixed agent 330 times of liquid for citrus is sprayed on the whole plant, and the back of the leaf surface cannot be sprayed in a leakage way.
The results of the annual disease and pest control of citrus are shown in table 6 below;
TABLE 6
Comparative example 2: preparation and application methods of improved citrus oil-manganese-copper mixed medicament
An improved citrus oil-manganese-copper mixed medicament, which comprises the following components in parts by weight: 60 parts of 99% mineral oil emulsifiable concentrate, 10 parts of 77% copper hydroxide water dispersible granule, 30 parts of 80% mancozeb zinc powder, 20 parts of 1.8% avermectin microemulsion, 0.15 part of mineral oil emulsifiable concentrate modifier and 0.15 part of avermectin microemulsion modifier; the product fineness of the 77% copper hydroxide water dispersible granule is 1.5 mu m; the product granularity of the 80% mancozeb powder is 850 meshes;
the mineral oil emulsifiable modifier consists of the following components in parts by weight: 5 parts of polyvinyl alcohol, 1.5 parts of nonylphenol polyoxyethylene ether and 0.4 part of sodium polyacrylate;
The avermectin microemulsion modifier consists of the following components in parts by weight: 22 parts of chitosan oligosaccharide and 12 parts of methyl jasmonate.
The preparation method of the improved oil-manganese-copper mixed medicament for citrus comprises the following steps:
1) Weighing the components according to the composition proportion of the improved oil-manganese-copper mixed medicament for citrus; dividing the mineral oil emulsifiable concentrate modifier into two equal parts, adding one part of the mineral oil emulsifiable concentrate modifier and the 80% mancozeb powder into the 99% mineral oil emulsifiable concentrate, and uniformly mixing at room temperature under the condition that the stirring speed is 100r/min to obtain a first mixture;
2) Adding 77% copper hydroxide water dispersible granules into the first mixture, and uniformly mixing at room temperature under the condition of stirring speed of 100r/min to obtain a second mixture;
3) Adding 1.8% avermectin microemulsion and avermectin microemulsion modifier into the second mixture, and uniformly mixing at room temperature under the condition of stirring speed of 100r/min to obtain a third mixture;
4) And adding another part of the mineral oil emulsifiable concentrate modifier into the third mixture, and uniformly mixing at room temperature under the condition that the stirring speed is 100r/min to obtain the improved oil-manganese-copper mixed medicament for citrus.
The invention also provides a use method of the improved oil-manganese-copper mixed medicament for citrus, which is used for 6 times per year, and solves the problem of disease and insect damage of citrus all year round; the specific service time and method of the improved oil-manganese-copper mixed medicament for citrus are as follows:
(1) Spraying 220 times of the improved oil-manganese-copper mixed medicament for citrus on the whole plant before germination;
(2) The oil-manganese-copper mixed medicament 530 times of the liquid for the improved citrus is sprayed on the whole plant 12 days before flowering, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(3) When the flowers fall by about 2/3, the whole plant is sprayed with 420 times of the improved oil-manganese-copper mixed agent for citrus, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(4) Spraying 170 times of the improved oil-manganese-copper mixed medicament for citrus in the young fruit period, wherein the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(5) The improved oil-manganese-copper mixed medicament for citrus is sprayed on the whole plant in Qiu Shao period, and 190 times of liquid can not be sprayed on the back of a new leaf and a leaf surface;
(6) After fruit picking in winter, the improved oil-manganese-copper mixed agent 330 times of liquid for citrus is sprayed on the whole plant, and the back of the leaf surface cannot be sprayed in a leakage way.
The results of the annual citrus pest control are shown in table 7 below;
TABLE 7
Comparative example 3: preparation and application methods of improved citrus oil-manganese-copper mixed medicament
An improved citrus oil-manganese-copper mixed medicament, which comprises the following components in parts by weight: 60 parts of 99% mineral oil emulsifiable concentrate, 10 parts of 77% copper hydroxide water dispersible granule, 30 parts of 80% mancozeb zinc powder, 20 parts of 1.8% avermectin microemulsion, 0.6 part of copper hydroxide slow release agent and 0.15 part of avermectin microemulsion modifier; the product fineness of the 77% copper hydroxide water dispersible granule is 1.5 mu m; the product granularity of the 80% mancozeb powder is 850 meshes;
the copper hydroxide slow release agent comprises the following components in parts by weight: 12 parts of alpha-cyclodextrin and 10 parts of gamma-cyclodextrin;
the avermectin microemulsion modifier consists of the following components in parts by weight: 22 parts of chitosan oligosaccharide and 12 parts of methyl jasmonate.
The preparation method of the improved oil-manganese-copper mixed medicament for citrus comprises the following steps:
1) Weighing the components according to the composition proportion of the improved oil-manganese-copper mixed medicament for citrus; adding the 80% mancozeb powder into the 99% mineral oil emulsifiable concentrate, and uniformly mixing under the conditions of room temperature and stirring speed of 100r/min to obtain a first mixture;
2) Sequentially adding a copper hydroxide slow release agent and 77% copper hydroxide water dispersible granules into the first mixture, and uniformly mixing at room temperature under the condition that the stirring rate is 100r/min to obtain a second mixture;
3) And adding 1.8% of avermectin microemulsion and an avermectin microemulsion modifier into the second mixture, and uniformly mixing at room temperature under the condition of stirring speed of 100r/min to obtain the improved oil-manganese-copper mixed medicament for citrus.
The invention also provides a use method of the improved oil-manganese-copper mixed medicament for citrus, which is used for 6 times per year, and solves the problem of disease and insect damage of citrus all year round; the specific service time and method of the improved oil-manganese-copper mixed medicament for citrus are as follows:
(1) Spraying 220 times of the improved oil-manganese-copper mixed medicament for citrus on the whole plant before germination;
(2) The oil-manganese-copper mixed medicament 530 times of the liquid for the improved citrus is sprayed on the whole plant 12 days before flowering, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(3) When the flowers fall by about 2/3, the whole plant is sprayed with 420 times of the improved oil-manganese-copper mixed agent for citrus, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(4) Spraying 170 times of the improved oil-manganese-copper mixed medicament for citrus in the young fruit period, wherein the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(5) The improved oil-manganese-copper mixed medicament for citrus is sprayed on the whole plant in Qiu Shao period, and 190 times of liquid can not be sprayed on the back of a new leaf and a leaf surface;
(6) After fruit picking in winter, the improved oil-manganese-copper mixed agent 330 times of liquid for citrus is sprayed on the whole plant, and the back of the leaf surface cannot be sprayed in a leakage way.
The results of the annual disease and pest control of citrus are shown in table 8 below;
TABLE 8
Comparative example 4: preparation and application methods of improved citrus oil-manganese-copper mixed medicament
An improved citrus oil-manganese-copper mixed medicament, which comprises the following components in parts by weight: 60 parts of 99% mineral oil emulsifiable concentrate, 10 parts of 77% copper hydroxide water dispersible granule, 30 parts of 80% mancozeb zinc powder, 20 parts of 1.8% avermectin microemulsion, 0.15 part of mineral oil emulsifiable concentrate modifier and 0.6 part of copper hydroxide slow release agent; the product fineness of the 77% copper hydroxide water dispersible granule is 1.5 mu m; the product granularity of the 80% mancozeb powder is 850 meshes;
the mineral oil emulsifiable modifier consists of the following components in parts by weight: 5 parts of polyvinyl alcohol, 1.5 parts of nonylphenol polyoxyethylene ether and 0.4 part of sodium polyacrylate;
the copper hydroxide slow release agent comprises the following components in parts by weight: 12 parts of alpha-cyclodextrin and 10 parts of gamma-cyclodextrin;
the preparation method of the improved oil-manganese-copper mixed medicament for citrus comprises the following steps:
1) Weighing the components according to the composition proportion of the improved oil-manganese-copper mixed medicament for citrus; dividing the mineral oil emulsifiable concentrate modifier into two equal parts, adding one part of the mineral oil emulsifiable concentrate modifier and the 80% mancozeb powder into the 99% mineral oil emulsifiable concentrate, and uniformly mixing at room temperature under the condition that the stirring speed is 100r/min to obtain a first mixture;
2) Sequentially adding a copper hydroxide slow release agent and 77% copper hydroxide water dispersible granules into the first mixture, and uniformly mixing at room temperature under the condition that the stirring rate is 100r/min to obtain a second mixture;
3) Adding 1.8% avermectin microemulsion into the second mixture, and uniformly mixing at room temperature under the condition of stirring speed of 100r/min to obtain a third mixture;
4) And adding another part of the mineral oil emulsifiable concentrate modifier into the third mixture, and uniformly mixing at room temperature under the condition that the stirring speed is 100r/min to obtain the improved oil-manganese-copper mixed medicament for citrus.
The invention also provides a use method of the improved oil-manganese-copper mixed medicament for citrus, which is used for 6 times per year, and solves the problem of disease and insect damage of citrus all year round; the specific service time and method of the improved oil-manganese-copper mixed medicament for citrus are as follows:
(1) Spraying 220 times of the improved oil-manganese-copper mixed medicament for citrus on the whole plant before germination;
(2) The oil-manganese-copper mixed medicament 530 times of the liquid for the improved citrus is sprayed on the whole plant 12 days before flowering, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(3) When the flowers fall by about 2/3, the whole plant is sprayed with 420 times of the improved oil-manganese-copper mixed agent for citrus, and the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(4) Spraying 170 times of the improved oil-manganese-copper mixed medicament for citrus in the young fruit period, wherein the back of the new leaves and the back of the leaf surfaces cannot be sprayed in a leakage way;
(5) The improved oil-manganese-copper mixed medicament for citrus is sprayed on the whole plant in Qiu Shao period, and 190 times of liquid can not be sprayed on the back of a new leaf and a leaf surface;
(6) After fruit picking in winter, the improved oil-manganese-copper mixed agent 330 times of liquid for citrus is sprayed on the whole plant, and the back of the leaf surface cannot be sprayed in a leakage way.
The results of the annual citrus pest control are shown in table 9 below;
TABLE 9
The experimental results of the above examples 1-5 and comparative examples 1-4 show that the copper hydroxide water dispersible granule in the improved oil-manganese-copper mixed medicament for citrus can be adhered to the surface of crops after being sprayed on the crops to form a layer of protective film, is not easy to be washed by rain water, releases copper ions under certain humidity, and plays a role in sterilization and disease prevention; the copper hydroxide slow release agent consists of alpha-cyclodextrin and gamma-cyclodextrin, and further slowly releases 77% of copper hydroxide water dispersible granules to release copper ions by virtue of the solubility and inclusion capacity of the copper hydroxide slow release agent in water, so that the copper ions are prevented from being oxidized with higher content, and the blue-turning of a white sponge layer in citrus peel is effectively avoided; the mineral oil emulsifiable concentrate modifier consists of polyvinyl alcohol, polyoxyethylene nonylphenol ether and sodium polyacrylate, wherein the polyvinyl alcohol is an emulsion stabilizer, the polyoxyethylene nonylphenol ether is a surfactant, and the sodium polyacrylate has negative charges, so that active ingredients of the medicament can be stably dispersed into a mixed medicament, and the three components are matched, so that layering of the mineral oil emulsifiable concentrate after mixing can be effectively prevented, and phytotoxicity caused by the mineral oil emulsifiable concentrate layer can be avoided; the 1.8% avermectin of the emulsifiable concentrate is required to be taken as a solvent, so that the risk of phytotoxicity such as water accumulation spots at the bottoms of flowers and fruits after the avermectin emulsifiable concentrate is mixed is obviously increased, and chitosan oligosaccharide which is positive-charge cation alkaline amino oligosaccharide is added as an avermectin microemulsion modifier, so that the avermectin emulsifiable concentrate has strong putrefying bacteria inhibiting performance, and can effectively prevent the water accumulation spots at the bottoms of fruits when being matched with the avermectin emulsifiable concentrate; the avermectin microemulsion modifier is also added with a proper amount of methyl jasmonate, so that the expression of defensive plant genes can be stimulated, the chemical defense of plants is induced, the effect similar to mechanical damage and insect feeding is generated, and the citrus peel is brighter when the avermectin microemulsion modifier is matched for use; the copper hydroxide is acidified by water films on the plant surface and the pathogenic bacteria surface by using 77% copper hydroxide water sizing agent, copper ions released slowly act on protein in fungi and bacteria, so that the germination of pathogenic bacteria spores and the growth of hyphae are effectively inhibited, the pathogenic bacteria death is caused, diseases can be quickly and directly reached, the ulcer disease spots are locked, the fineness of the product is controlled to be 1-1.5 microns, and the problem of the copper preparation phytotoxicity caused by large particle size can be effectively solved; the traditional mesh number of mancozeb is 325 meshes, and the mesh number of mancozeb is controlled to be about 800 meshes, so that the mixing risk caused by the fineness problem of mancozeb can be solved, and the overall stability of the improved oil-manganese-copper mixed medicament for citrus is higher.
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (10)

1. An improved oil-manganese-copper mixed medicament for citrus, which is characterized in that: the improved oil-manganese-copper mixed medicament for citrus comprises the following components in parts by weight: 55-65 parts of 99% mineral oil emulsifiable concentrate, 8-12 parts of 77% copper hydroxide water dispersible granule, 28-32 parts of 80% mancozeb powder, 18-22 parts of 1.8% avermectin microemulsion, 0.1-0.2 part of mineral oil emulsifiable concentrate modifier, 0.5-0.8 part of copper hydroxide slow release agent and 0.1-0.2 part of avermectin microemulsion modifier;
the mineral oil emulsifiable concentrate modifier is used for preventing the mineral oil emulsifiable concentrate from layering after being mixed and avoiding the phytotoxicity caused by the mineral oil emulsifiable concentrate layering; the mineral oil emulsifiable modifier consists of the following components in parts by weight: 4-6 parts of polyvinyl alcohol, 1-2 parts of nonylphenol polyoxyethylene ether and 0.3-0.5 part of sodium polyacrylate;
The copper hydroxide slow release agent is characterized by slow release of copper ions and prevention of chemical injury of copper preparations, and comprises the following components in parts by weight: 10-15 parts of alpha-cyclodextrin and 8-12 parts of gamma-cyclodextrin;
the avermectin microemulsion modifier is characterized by preventing water spots from occurring at the bottom of fruits, and is chitosan oligosaccharide.
2. An improved citrus oil-manganese-copper mixed medicament according to claim 1, wherein: the improved oil-manganese-copper mixed medicament for citrus comprises the following components in parts by weight: 60 to 65 parts of 99% mineral oil emulsifiable concentrate, 10 to 12 parts of 77% copper hydroxide water dispersible granule, 30 to 32 parts of 80% mancozeb powder, 20 to 22 parts of 1.8% avermectin microemulsion, 0.15 to 0.2 part of mineral oil emulsifiable concentrate modifier, 0.6 to 0.8 part of copper hydroxide slow release agent and 0.15 to 0.2 part of avermectin microemulsion modifier.
3. An improved citrus oil-manganese-copper mixed medicament according to claim 1, wherein: the mineral oil emulsifiable concentrate modifier is used for preventing the mineral oil emulsifiable concentrate from layering after being mixed and avoiding the phytotoxicity caused by the mineral oil emulsifiable concentrate layering; the mineral oil emulsifiable modifier consists of the following components in parts by weight: 5 to 6 parts of polyvinyl alcohol, 1.5 to 2 parts of nonylphenol polyoxyethylene ether and 0.4 to 0.5 part of sodium polyacrylate.
4. An improved citrus oil-manganese-copper mixed medicament according to claim 1, wherein: the copper hydroxide slow release agent is characterized by slow release of copper ions and prevention of chemical injury of copper preparations, and comprises the following components in parts by weight: 12-15 parts of alpha-cyclodextrin and 10-12 parts of gamma-cyclodextrin.
5. An improved citrus oil-manganese-copper mixed medicament according to claim 1, wherein: the avermectin microemulsion modifier also comprises methyl jasmonate; the avermectin microemulsion modifier consists of the following components in parts by weight: 20-25 parts of chitosan oligosaccharide and 10-15 parts of methyl jasmonate.
6. An improved citrus oil-manganese-copper mixed medicament according to claim 5, wherein: the avermectin microemulsion modifier consists of the following components in parts by weight: 22-25 parts of chitosan oligosaccharide and 12-15 parts of methyl jasmonate.
7. An improved citrus oil-manganese-copper mixed medicament according to claim 1, wherein: the product fineness of the 77% copper hydroxide water dispersible granule is 1-1.5 mu m.
8. An improved citrus oil-manganese-copper mixed medicament according to claim 1, wherein: the product granularity of the 80% mancozeb powder is 800-850 meshes.
9. A method for preparing an improved citrus oil-manganese-copper mixed medicament according to any one of claims 1 to 6, which is characterized in that: the method comprises the following steps:
1) Weighing the components according to the composition proportion of the improved oil-manganese-copper mixed medicament for citrus; dividing the mineral oil emulsifiable concentrate modifier into two equal parts, adding one part of the mineral oil emulsifiable concentrate modifier and the 80% mancozeb powder into the 99% mineral oil emulsifiable concentrate, and uniformly mixing to obtain a first mixture;
2) Sequentially adding a copper hydroxide slow release agent and 77% copper hydroxide water dispersible granules into the first mixture, and uniformly mixing to obtain a second mixture;
3) Adding 1.8% of avermectin microemulsion and an avermectin microemulsion modifier into the second mixture, and uniformly mixing to obtain a third mixture;
4) And adding another part of the mineral oil emulsifiable concentrate modifier into the third mixture, and uniformly mixing to obtain the improved oil-manganese-copper mixed medicament for citrus.
10. Use of an improved citrus oil-manganese-copper mixture as claimed in any one of claims 1 to 6 for controlling annual citrus insect pests, characterized in that: the improved oil-manganese-copper mixed medicament for citrus is used for 6 times each year, so that the annual plant diseases and insect pests of citrus are solved; the specific service time and method of the improved oil-manganese-copper mixed medicament for citrus are as follows:
(1) Spraying 200-250 times of the improved oil-manganese-copper mixed medicament for citrus to the whole plant before germination;
(2) 10-15 days before flowering, spraying 500-550 times of the improved oil-manganese-copper mixed agent for citrus on the whole plant;
(3) When the flower falls by about 2/3, spraying 400-450 times of the improved oil-manganese-copper mixed agent for citrus on the whole plant;
(4) Spraying 150-200 times of the improved oil-manganese-copper mixed agent for citrus in the young fruit period;
(5) Spraying 180-200 times of the improved oil-manganese-copper mixed medicament for citrus in Qiu Shao period;
(6) After fruit picking in winter, the improved oil-manganese-copper mixed agent for citrus is sprayed on the whole plant 300-350 times of liquid.
CN202310754809.2A 2023-06-26 2023-06-26 An improved oil, manganese and copper mixed agent for citrus and its preparation method and application Pending CN116803274A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1047607A (en) * 1989-05-29 1990-12-12 火箭兄弟公司 Plant protection composition, the purposes of its preparation method and control cryptogams disease thereof
CN103461353A (en) * 2013-09-05 2013-12-25 肇庆长龙生物科技有限公司 Pesticide composition containing chitosan oligosaccharide, pesticide and application of pesticide
CN106259338A (en) * 2015-05-22 2017-01-04 陕西美邦农药有限公司 A kind of containing jasmonic or the composition pesticide of (-)-methyl cis-2-pent-2'-enyl-3-oxocyclopentylacetate
CN107047546A (en) * 2017-03-14 2017-08-18 广西特色作物研究院 A kind of dispersible oil-suspending agent of Mancozeb using mineral oil as medium and preparation method thereof
CN115299461A (en) * 2022-10-12 2022-11-08 山东科大创业生物有限公司 Composition containing oil copper-manganese suit and ethyl ester type polyene fish oil auxiliary agent and application thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1047607A (en) * 1989-05-29 1990-12-12 火箭兄弟公司 Plant protection composition, the purposes of its preparation method and control cryptogams disease thereof
CN103461353A (en) * 2013-09-05 2013-12-25 肇庆长龙生物科技有限公司 Pesticide composition containing chitosan oligosaccharide, pesticide and application of pesticide
CN106259338A (en) * 2015-05-22 2017-01-04 陕西美邦农药有限公司 A kind of containing jasmonic or the composition pesticide of (-)-methyl cis-2-pent-2'-enyl-3-oxocyclopentylacetate
CN107047546A (en) * 2017-03-14 2017-08-18 广西特色作物研究院 A kind of dispersible oil-suspending agent of Mancozeb using mineral oil as medium and preparation method thereof
CN115299461A (en) * 2022-10-12 2022-11-08 山东科大创业生物有限公司 Composition containing oil copper-manganese suit and ethyl ester type polyene fish oil auxiliary agent and application thereof

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