TWI718130B - Insecticidal composition - Google Patents

Abstract

Provided is an insecticidal composition comprising between 22 % and 25 % by weight thiamethoxam and between 15 % and 18 % by weight of bifenthrin. It has been found that the specific weight ratio of thiamethoxam and bifenthrin exhibits a hitherto unknown and surprisingly strong synergistic effect on controlling insects which outranges previously reported effects of said combination of insecticides.

Description

Insecticidal composition

The present invention generally relates to compositions for controlling insects. Specifically, the present invention provides an insecticidal composition comprising a specific amount of thiamethoxam and bifenthrin, which show a particularly strong synergistic effect in insect control.

Insect infestation represents a major threat to important economic crops. The yield of plants (such as fiber plants, vegetables, sugarcane, legumes, cereals, pastures) is adversely affected by insect infestation.

Chemical control is an important way to prevent and control pests in agriculture. However, environmental and economic requirements for modern insecticides (for example, in terms of action spectrum, toxicity, selectivity, application rate, residue formation, and good manufacturing ability) are increasing.

Insecticides called neonicotinoids represent a well-known class of insecticides with broad-spectrum insect control. Compared with the previously used organophosphorus and carbamate insecticides, neonicotinoids are less toxic as insecticides and provide similar broad-spectrum control for large numbers of crop-damaging pests. A representative of the neonicotinoids is 3-[(2-chloro-1,3-thiazol-5-yl)methyl]-5-methyl-N-nitro-1,3,5-oxa Diazine-4-imine, which is known by its common name as Sasuan, is a widely used commercial agrochemical product. Sai Suan and its preparation method were first disclosed in EP 0 580 553. It is a broad-spectrum systemic insecticide, and plants can quickly absorb and transport to all parts of the plant (including pollen), in these parts Saisuan is used to prevent insects from feeding. The compound is absorbed in the insect's stomach or through direct contact, including through the insect's tracheal system. Racesuan works by interfering with nicotinic acetylcholine receptors in the central nervous system, and ultimately paralyzes the insect's muscles.

Another class of well-known insecticides are pyrethroids. This is excitotoxins , whose toxic effect is mediated by preventing the closure of voltage-gated sodium channels in the axon membrane. A representative of the pyrethroids is 2-methyl-3-(phenylphenyl)methyl(1S,3S)-3-[(Z)-2-chloro-3,3,3 -Trifluoroprop-1-enyl]-2,2-dimethylcyclopropane-1-carboxylate, its known common name is bifenin. Like other pyrethroids, bifenin is chiral and has two different enantiomers: 1S-cis-bifenin and 1R-cis-bifenin. Its combination with voltage-gated sodium channels leads to so-called after potentials and eventually to the continuous firing of nerve axons, thereby rendering the target insect incapable of movement.

Due to some problems, such as the problem of resistance to known active compounds, there is a constant need to develop new insecticides, which in some respects at least have advantages over their known counterparts. Recently, insecticidal compositions containing two or more compounds from different classes of insecticides have been proposed. Compositions containing Sasuan and Bifenning have been reported in the art.

CN 101919401 B discloses a pesticide composition containing Saisuan and Bifenning, and the weight ratio of the two is 20:1 to 1:5, preferably 15:1 to 1:1. A specific embodiment discloses a composition comprising 5% acesulfam, 10% bifenin, 8% anionic emulsifier, 6% nonionic emulsifier, 15% cyclohexane, 5% methanol and supplemented to 100% Xylene.

CN 102027986 B discloses a pesticide composition comprising Bifenning and Sasuan with a quality ratio of 100:1 to 1:10.

US 8,133,499 discloses a liquid termiticide composition comprising pyrethroids (for example, Bifenin) and neonicotinoids (for example, Cyclosan). The composition provides a continuous chemical mask and increased termite mortality at low application rates. In the composition, bifenin is present in an amount of 0.0005 to 0.50% by weight of all components, and acesulfan is present in an amount of 0.0005 to 0.50% by weight of all components.

US 2008/319023 discloses an insecticidal composition comprising a mixture of a pyrethroid and a second insecticide selected from the group consisting of acesulfame and the like. The composition contains 0.001-0.005% by weight of Bifenin and 0.0025-0.02% by weight of Sasuan.

Although certain effects of the combination of Saisuan and Bifenning on pest control have been reported, and the consequent reduction in the amount of pesticides required for effective pest control, the latest environmental protection and consumer interest need to be relatively For the individual application and dosage of such a composition, the application rate is lower, especially in The agricultural industry.

Therefore, the object of the present invention is to provide a more effective insecticidal composition that can overcome the problem of resistance and reduce the need to apply a large amount of the composition to plants in order to effectively control pests (such as certain insects).

It has been unexpectedly discovered that, compared with previously known compositions containing Sasuan and Bifenning, an insecticidal containing about 22-25% by weight of Sasuan and about 15-18% by weight of Bifening has been found. The composition shows a significantly stronger synergistic effect.

Therefore, according to a certain aspect, the present invention provides an insecticidal composition comprising about 22-25% by weight of acesulfame and about 15-18% by weight of bifenin.

Preferably, the amount of Saisuan is about 22.5% by weight to 24.9% by weight, more preferably about 22.9% by weight to about 24.6% by weight, more preferably about 23.0% by weight to about 24.0% by weight, more preferably about 23.2% by weight % To about 23.7% by weight, most preferably about 23.3% to about 23.5% by weight. The optimal amount of acesulfame in the insecticidal composition is about 23.4% by weight.

Also preferably, the amount of Bifennin is about 15.4% by weight to about 17.6% by weight, more preferably about 15.8% by weight to about 17.2% by weight, more preferably about 16.1% by weight to 17.0% by weight, more preferably about 16.3% by weight -16.9% by weight, most preferably about 16.5% by weight to 16.7% by weight. The optimal amount of bifenin in the insecticidal composition is about 16.6% by weight.

A preferred combination is about 23% by weight to 24% by weight of Sasuan and 16% by weight to 17% by weight of Bifenin, and a more preferable composition contains about 23.3% by weight to 23.5% by weight of Sasuan and about 16.5% by weight. %-16.7% by weight of Bifenin, the best composition contains 23.4% by weight of Sasuan and 16.6% by weight of Bifenin.

Sasuan and Bifennin can be present in the composition or administered in any amount relative to each other to provide a synergistic effect of the mixture. Specifically, the weight ratio of Saisuan and Bifenning in the composition is from about 1.7:1 to about 1.2:1, preferably from about 1.65:1 to about 1.25:1, more preferably from about 1.6:1 to about 1.3 :1, more preferably from about 1.55:1 to about 1.35:1, more preferably from about 1.5:1 to about 1.35:1, more preferably from about 1.45:1 to about 1.35:1, the best in the composition The weight ratio of Saisuan and Bifenning is about 1.4:1.

In the meaning of the present invention, the terms "more than one" and "one or more" refer to 2, 3, 4, 5, 6, 7, 8, 9 or more kinds. The compounds are preferably two or three compounds.

The term "plant" as used herein refers to all plants and plant populations, such as wild plants or crop plants that are needed or not.

The term "plant part" as used herein refers to all parts and organs of a plant, such as branches, leaves, needles, stems, stems, fruiting bodies, fruits, seeds, roots, tubers and rhizomes. It also includes harvested material, as well as vegetative propagation material and generative propagation material, for example, cuttings, tubers, meristems, rhizomes, lateral branches, seeds, single plant cells and multiple plant cells, and any other plant tissues.

Within the meaning of the present invention, the term "weight %" refers to the weight% of the composition.

The composition containing the indicated amounts of the active ingredients Sasuan and Bifenin can be provided in any suitable form for direct application to the site, or for the preparation of a formulation that can be applied to the site, such as a liquid solution, a concentrate , Suspension, suspension, emulsion, microemulsion, emulsifiable concentrate, wettable powder, water dispersible granule, microcapsule suspension, emulsion granule. The composition of the present invention may also contain one or more suitable auxiliaries or additives commonly used in such formulations. The suitable adjuvants are all conventional formulation adjuvants or components, such as extenders, carriers, solvents, surfactants, stabilizers, defoamers, antifreeze agents, preservatives, antioxidants, colorants, Thickeners, solid adhesives and fillers. These adjuvants are generally known in the art and are commercially available. For example, the composition of the present invention may also contain one or more additives, such as emulsifiers, dispersants, wetting agents or penetrants, and other additives, such as surfactants, and may optionally contain solvents or co-solvents according to the dosage form. Solvent, carrier or filler and water. If deemed necessary, the insecticidal composition of the present invention may also contain a binder, a disintegrant and other additives.

The emulsifier may be one or more ionic emulsifiers or one or more nonionic emulsifiers, such as diionic emulsifiers or dinonionic emulsifiers, or a combination thereof. The emulsifier can be selected from the following group, but is not limited to: alkylphenol (polyoxypropylene) ether, benzylphenol ethoxylate, phenethylphenol ethoxylate, fatty alcohol ethoxylate, fatty acid Polyoxyethylene vinyl ester, phenethyl phenol, polyoxyethylene polyoxypropylene ether, phosphate/ester, ethylene oxide adduct of castor oil, polyoxyethylene alkyl phenol ether formaldehyde condensate, alkyl Benzenesulfonic acid (calcium salt or sodium salt), or a combination thereof.

One or more dispersing agents, wetting agents or surfactants are preferably nonionic, cationic and/or anionic in nature. It also includes surfactant mixtures with good emulsifying, dispersing and wetting properties. Suitable anionic surfactants can be so-called water-soluble soaps and water-soluble synthetic surface-active compounds. Usable soaps are alkali metal salts, alkaline earth metal salts or substituted or unsubstituted ammonium salts of higher fatty acids (C ₁₀ -C ₂₂ ), such as sodium or potassium salts of oleic acid or stearic acid or natural fatty acid mixtures. The surfactant may be an ionic or non-ionic emulsifier, dispersant or wetting agent. Usable examples are the salt of polyacrylic acid, the salt of lignosulfonic acid, the salt of benzenesulfonic acid or naphthalenesulfonic acid, the condensation polymer of ethylene oxide and fatty alcohol or fatty acid or fatty amine, substituted phenol (especially It is an alkylphenol), a salt of sulfosuccinate, a taurine derivative (especially an alkyltaurate), or a polyethoxylated phenol or alcohol phosphate. When the active compound and/or inert carriers and/or adjuvants/adjuvants are insoluble in water, and the carrier for the final application of the composition is water, it is generally required that at least one surfactant be present.

The organic solvent or co-solvent can be selected from the following group, but not limited to: non-hydrogenated or partially hydrogenated aromatic hydrocarbons, preferably C ₈ -C ₁₂ alkylbenzene fractions (such as xylene mixtures, alkylated naphthalenes or tetralins) ), aliphatic hydrocarbons or cycloaliphatic hydrocarbons (e.g. paraffin or cyclohexane), alcohols (e.g. ethanol, propanol or butanol), glycols and their ethers and esters (e.g. propylene glycol, dipropylene glycol ether, ethyl Glycol or ethylene glycol monomethyl ether or ethylene glycol monoethyl ether), ketones (e.g. cyclohexanone, isophorone or diacetone alcohol), strong polar solvents (e.g. N-methylpyrrolidine-2 -Ketone, dimethyl sulfide or N,N-dimethylformamide), water, non-epoxidized or epoxidized vegetable oil (such as non-epoxidized or epoxidized rapeseed oil, castor oil, coconut oil or Soybean oil), and silicone oil, or a combination thereof. Preferably, the solvent is an organic solvent or co-solvent selected from the following group, but not limited to: toluene, xylene, chlorobenzene, mineral essential oil, α-methylnaphthalene, turpentine, dichloromethane, chloroform, methanol, Ethanol, isopropanol, butanol, isoamyl alcohol, cyclohexanone, isophorone, acetophenone, ethyl acetate, butyl acetate, N-dimethyl-formamide, dimethyl sulfide, methyl Base cellosolve or ethyl cellosolve fiber, or a combination thereof. The following ones are preferred: N-methylpyrrolidone, N-octylpyrrolidone, cyclohexyl-1-pyrrolidone; or ExxonMobil's SOLVESSO ^TM 200, a commercially available paraffin or isoparaffin , A mixture of cycloalkanes and aromatic hydrocarbons.

The carrier or filler can be selected from inert fillers. Suitable fillers are in solid form and include, for example, natural ground minerals such as kaolin, alumina, talc, chalk, quartz, attapulgite, montmorillonite, And diatomaceous earth, or synthetic ground minerals, such as highly dispersed silicic acid, alumina, silicate and calcium phosphate and calcium hydrogen phosphate. Suitable inert fillers for granular substances include, for example, crushed and classified natural minerals such as calcite, marble, pumice, sepiolite and dolomite, or synthetic particles of inorganic and organic ground materials, and organic materials (E.g. sawdust, coconut husk, corn cob, and tobacco stem) particles, or a combination thereof

One or more polymer stabilizers that can be used in the composition of the present invention include, but are not limited to, polypropylene, polyisobutylene, polyisoprene, copolymers of monoolefins and dienes, polyacrylates, polystyrene, poly Vinyl acetate, polyurethane or polyamide, or a combination thereof.

The antifreeze agent may be selected from the following group but not limited thereto: ethylene glycol, glycerol, propylene glycol, urea, glycerin, diethylene glycol diethyl ether, polyethylene glycol or isopropanol, or a combination thereof.

The binder may be selected from the following group, but is not limited to: starch, dextrin, gum arabic, soy protein, bone glue, sodium sulfate, gypsum, polyvinyl alcohol, polyethylene, glycol, rosin, paraffin, CMC or Sodium silicate or their combination.

Suitable defoamers include all substances that can be conventionally used in agrochemical compositions for this purpose. Therefore, the defoaming agent that can be used in the present invention is selected from the following group, but not limited to: silicone, C ₈ -C ₁₀ fatty alcohol, saturated fatty acid (such as capric acid, stearic acid, etc.) and amide, or Their combination. A particularly preferred antifoaming agent is a mixture of polydimethylsiloxane and perfluoroalkylphosphonic acid.

The disintegrant may be selected from the following group, but is not limited to: sodium alginate, sodium carboxymethyl starch, ammonium sulfate, bentonite, calcium chloride, urea or a combination thereof.

Suitable antioxidants are all substances that are conventionally used in agrochemical compositions to achieve this purpose, as known in the art. Preferably butylated hydroxytoluene.

Suitable thickeners include all substances that can be conventionally used in agrochemical compositions for this purpose. For example, xanthan gum, PVOH, cellulose and its derivatives, clay hydrated silicate, magnesium aluminum silicate or their mixtures.

The insecticidal composition may also contain one or more solid adhesives. The adhesive is known in the art and is commercially available. It includes organic binders, including tackifiers, such as substituted cellulose cellulose, natural and synthetic polymers in powder, granule or mesh form, and inorganic adhesives, such as gypsum, silica or cement .

In addition, depending on the formulation, the composition of the present invention may also contain water.

The insecticidal composition of the present invention may further comprise active ingredients, such as other insecticides and/or herbicides.

The insecticidal composition of the present invention can be used for controlling insects, especially for controlling insects in agricultural and horticultural crops. The composition of the present invention is suitable for controlling aphids, armyworms, beetles, leafhoppers, loopers, millipedes, mites, moths, spittlebugs, stink bugs,

Thrips (Thrips), weevil (weevils), whitefly, particularly suitable for controlling insects selected from the group, but are not limited to: aphid (peach aphid (Myzus persicae)), Cucurbitaceae beetles (cucurbit beetle) (South American Leaf beetle ( Diabrotica speciose ), moth ( Spodoptera frugiperda ), foam cicada ( Deois flavoptica , Mahanarva fimbriolat ), bug elephant ( Dichelops) melacanthus ), Euschistus heros , Piezodorus guildinii) , Thrips ( Thrips palmi ), Weevil (Sphenophorus levi ) and Whitefly ( Cotton whitefly ( Bemisia tabaci )).

The composition of the present invention is also particularly suitable for protecting plants and/or crops selected from the following group, but not limited to this: fibrous plants, vegetables, sugarcane, legumes, cereals, pastures, especially cotton, potatoes, sugarcane, onions , Dried beans, corn, pasture, red pepper, soybeans and tomatoes.

The composition of the present invention can be preferably used to control: ˙ aphids (Myzus persicae ( Myzus persicae )) and whiteflies ( Bemisia tabaci ) on tomatoes; ˙Stickers (Euschistus heros) on soybeans )) and elephant bugs ( Piezodorus guildinii ); ˙Thrips on red pepper ( Thrips palmi ); ˙Cicadas on pasture (Deois flavoptica (Deois flavoptica)); ˙Stink bugs (Dichelops melacanthus ) and moths ( Spodoptera frugiperda ) on corn; ˙Whiteflies (Bemisia tabaci ) on dried beans and Cucurbita beetles (South America) Leaf beetle ( Diabrotica speciose ); ˙Thrips on the onion ( Thrips palmi ); ˙Cicadas (Mahanarva fimbriolat ) and weevil (Cryptobeak weevil) on sugarcane ( Sphenophorus levi )); ˙Aphids (Myzus persicae ) and thrips ( Thrips palmi ) on potatoes; and ˙Stink bugs (Euschistus heros ) and whiteflies on cotton ( Bemisia tabaci ).

In order to combat insects at a specific location, the insecticidal composition is applied to the location such as the plant to be protected, the area around the plant to be protected, or the seed of the plant. Preferably, the composition is applied to the leaves or fruits of the plant.

Therefore, the insecticidal composition of the present invention can be used to protect crops, such as agricultural and horticultural crops, including their industrial products, such as seeds and fruits, by applying an effective amount of the insecticidal composition to crops.

The insecticidal composition of the present invention can also be used to protect stored products and stored materials, and even protect domestic animals and livestock from pests.

The composition can be applied and used in pure form as a solid active compound, for example with a specific particle size, or preferably in the form of conventional formulation techniques together with at least one auxiliary or additive component, such as an extender, For example, solvents or solid carriers or surface active compounds (surfactants), as described in more detail above. Generally, the active ingredients Sasuan and Bifenning are used in the form of a formulation composition formed together with one or more of the aforementioned conventional formulation auxiliary agents.

Examples of the types of preparations used in pre-mixed compositions are: Soluble Solution (SL), Emulsifiable Concentrate (EC), Water Emulsion (EW), Microemulsion (ME), Oil Type Suspension (OD), Suspended Seed Coating ( a flowable suspension) (FS), water dispersible granules (WG), soluble granules (SG), water dispersible powder (WP), soluble powder (SP), granules (GR), microcapsule granules (CG) ), fine granules (FG), large granules (GG), suspoemulsion (SE), microcapsule suspension (CS), microparticles (MG), or preferably suspension (SC).

Using such preparations, directly (ie undiluted) or diluted with a suitable solvent (especially water), the plants, plant parts and/or the surrounding environment can be treated and protected by spraying, pouring or immersion to resist insects. Generally, the proportion of the formulation diluted with water is about 1 to about 300 g total active ingredients per hectare, preferably per hectare About 4 to about 200 g total active ingredients per hectare, more preferably about 10 to about 150 g total active ingredients per hectare, more preferably about 20-100 g total active ingredients per hectare, most preferably about 40 to about 60 g total active ingredients per hectare .

The composition of the present invention can be applied in the following manner: the active ingredients Sasuan and Bifenning are obtained from independent formulation sources and mixed together (referred to as tank-mix, ready-to-use, soup spray or slurry). Type), optionally together with other pesticides, or, the active ingredients of Saisuan and Bifenin can be obtained as a single preparation mixture source (referred to as pre-mixed type, concentrated type, formula compound (or product)), and Optionally mix with other pesticides before application.

The following examples illustrate rather than limit the invention.

Formulation example

Prepare a suspension with the composition listed in the table below

The finely ground Saxan and Bifenning are closely mixed with the adjuvant to obtain a suspending agent, and any required suspending agent diluent can be obtained from the suspending agent by diluting with water.

Biological embodiment

Field Experiment 1-Soybean-Stinkbug ( Euschistus heros )

Cultivation of stink bugs (Euschistus heros ) in the laboratory. The number of insects is counted, collected, and then applied to healthy young soybean plants. The formulation examples are diluted and then sprayed on the plants. After being kept in a greenhouse at 21-25°C and 80% relative atmospheric humidity for 10 days, the remaining insect populations were tested.

Field Experiment 2-Soybean-Stinkbug ( Piezodorus guildinii )

Cultivation of stink bugs (Piezodorus guildinii ) in the laboratory. The number of insects is counted, collected, and then applied to healthy young soybean plants. The formulation examples are diluted and then sprayed on the plants. After being kept in a greenhouse at 21-25°C and 80% relative atmospheric humidity for 10 days, the remaining insect populations were tested.

Field Trial 3-Cotton- Stick Elephant (Euschistus heros)

Cultivation of stink bugs (Euschistus heros ) in the laboratory. The number of insects is counted, collected, and then applied to healthy young cotton plants. The formulation examples are diluted and then sprayed on the plants. After being kept in a greenhouse at 21-25°C and 80% relative atmospheric humidity for 10 days, the remaining insect populations were tested.

Field Trial 4-Cotton-Whitefly ( Bemisia tabaci )

Breeding whiteflies ( Bemisia tabaci ) in the laboratory. The number of insects is counted, collected, and then applied to healthy young cotton plants. The formulation examples are diluted and then sprayed on the plants. After being kept in a greenhouse at 21-25°C and 80% relative atmospheric humidity for 10 days, the remaining insect populations were tested.

Field trial 5-potato-aphids ( Myzus persicae )

Cultivate aphids ( Myzus persicae ) in the laboratory. The number of insects is counted, collected, and then applied to healthy young potato plants. The formulation examples are diluted and then sprayed on the plants. After being kept in a greenhouse at 21-25°C and 80% relative atmospheric humidity for 10 days, the remaining insect populations were tested.

Field trial 6-potato-thrips ( Thrips palmi )

Thrips (Thrips palmi ) are cultivated in the laboratory. The number of insects is counted, collected, and then applied to healthy young potato plants. The formulation examples are diluted and then sprayed on the plants. After being kept in a greenhouse at 21-25°C and 80% relative atmospheric humidity for 10 days, the remaining insect populations were tested.

Field trial 7-Sugarcane-Mo cicada ( Mahanarva fimbriolat )

The foam cicada (Mahanarva fimbriolat ) is cultivated in the laboratory. The number of insects is counted, collected, and then applied to healthy young sugarcane plants. The formulation examples are diluted and then sprayed on the plants. After being kept in a greenhouse at 21-25°C and 80% relative atmospheric humidity for 10 days, the remaining insect populations were tested.

Field trial 8-Sugarcane- Weevil (Sphenophorus levi )

Weevil beetles (Sphenophorus levi ) are cultivated in the laboratory. The number of insects is counted, collected, and then applied to healthy young sugarcane plants. The formulation examples are diluted and then sprayed on the plants. After being kept in a greenhouse at 21-25°C and 80% relative atmospheric humidity for 10 days, the remaining insect populations were tested.

Field trial 9-onion-thrips ( Thrips palmi )

Thrips (Thrips palmi ) are cultivated in the laboratory. Count the number of insects, collect them, and apply them to healthy young onion plants. The formulation examples are diluted and then sprayed on the plants. After being kept in a greenhouse at 21-25°C and 80% relative atmospheric humidity for 10 days, the remaining insect populations were tested.

Field Test 10-Dried Beans-Whitefly ( Bemisia tabaci )

Breeding whiteflies ( Bemisia tabaci ) in the laboratory. The number of insects is counted, collected, and then applied to healthy young dry bean plants. The formulation examples are diluted and then sprayed on the plants. After being kept in a greenhouse at 21-25°C and 80% relative atmospheric humidity for 10 days, the remaining insect populations were tested.

Field experiment 11-Dried beans-Cucurbita beetle ( Diabrotica speciose )

Cultivation of cucurbit beetles ( Diabrotica speciose ) in the laboratory. The number of insects is counted, collected, and then applied to healthy young dry bean plants. The formulation examples are diluted and then sprayed on the plants. After being kept in a greenhouse at 21-25°C and 80% relative atmospheric humidity for 10 days, the remaining insect populations were tested.

Field trial 12-corn- stink bug (Dichelops melacanthus )

Cultivation of stink bugs (Dichelops melacanthus ) in the laboratory. The number of insects is counted, collected, and then applied to healthy young corn plants. The formulation examples are diluted and then sprayed on the plants. After being kept in a greenhouse at 21-25°C and 80% relative atmospheric humidity for 10 days, the remaining insect populations were tested.

Field trial 13-corn-moth ( Spodoptera frugiperda )

The larvae of the moth (Spodoptera frugiperda ) are grown in the laboratory. The number of insects is counted, collected, and then applied to healthy young corn plants. The formulation examples are diluted and then sprayed on the plants. After being kept in a greenhouse at 21-25°C and 80% relative atmospheric humidity for 10 days, the remaining insect populations were tested.

Field experiment 14-Pasture-Mo cicada ( Deois flavopicta )

The foam cicada (Deois flavopicta ) is cultivated in the laboratory. Count the number of insects, collect them, and apply them to the grass. The formulation examples are diluted and then sprayed on the plants. After being kept in a greenhouse at 21-25°C and 80% relative atmospheric humidity for 10 days, the remaining insect populations were tested.

Field trial 15-red pepper-thrips ( Thrips palmi )

Thrips (Thrips palmi ) are cultivated in the laboratory. The number of insects is counted, collected, and then applied to healthy young red pepper plants. The formulation examples are diluted and then sprayed on the plants. After being kept in a greenhouse at 21-25°C and 80% relative atmospheric humidity for 10 days, the remaining insect populations were tested.

Field trial 16-Tomato-Aphids ( Myzus persicae )

Cultivate aphids ( Myzus persicae ) in the laboratory. The number of insects is counted, collected, and then applied to healthy young tomato plants. The formulation examples are diluted and then sprayed on the plants. After being kept in a greenhouse at 21-25°C and 80% relative atmospheric humidity for 10 days, the remaining insect populations were tested.

Field Test 17-Tomato-Whitefly ( Bemisia tabaci )

Breeding whiteflies ( Bemisia tabaci ) in the laboratory. The number of insects is counted, collected, and then applied to healthy young tomato plants. The formulation examples are diluted and then sprayed on the plants. After being kept in a greenhouse at 21-25°C and 80% relative atmospheric humidity for 10 days, the remaining insect populations were tested.

Claims (13)

An insecticidal composition comprising 22% by weight to 25% by weight of Sasuan and 15% by weight to 18% by weight of Bifenin. The insecticidal composition according to claim 1, wherein the insecticidal composition comprises 23.4% by weight of acesulfame and 16.6% by weight of bifenin. The insecticidal composition according to claim 1, wherein the weight ratio of Sasuan and Bifenning in the composition is 1.55:1 to 1.35:1. The insecticidal composition according to any one of claims 1 to 3, wherein the weight ratio of Sasuan and Bifenin in the composition is 1.4:1. The insecticidal composition according to any one of claims 1 to 3, wherein the composition further comprises one or more adjuvants, additives or solvents. The insecticidal composition according to any one of claims 1 to 3, wherein the adjuvant, additive or solvent is selected from the group consisting of extenders, carriers, solvents, surfactants, stabilizers, defoamers, Antifreeze, preservative, antioxidant, colorant, thickener, solid adhesive, filler, emulsifier, dispersant, wetting agent, penetrant, surfactant, binder, disintegrant or their random combination. The insecticidal composition according to any one of claims 1 to 3, wherein the insecticidal composition is in the following form: solution (SL), emulsifiable concentrate (EC), water emulsion (EW), microemulsion (ME), oil type suspension agent (OD), suspension seed coating agent (FS), water dispersible granules (WG), soluble granules (SG), water dispersible powder (WP), soluble powder (SP), Granules (GR), microcapsules (CG), fine granules (FG), macrogranules (GG), suspoemulsions (SE), microcapsule suspensions (CS), microgranules (MG), or preferably Suspending agent (SC). A use of the insecticidal composition according to any one of claims 1 to 7 for controlling insects. The use according to claim 8, wherein the insect is selected from the group consisting of aphids, cucurbit beetles, moths, foam cicadas, stink bugs, thrips, weevil beetles and whiteflies. A use of the insecticidal composition according to any one of claims 1 to 7 for protecting plants against insects. The use according to claim 10, wherein the plant is selected from cotton, potato, sugar cane, onion, dried beans, corn, pasture, red pepper, soybean and tomato. The use according to any one of claims 10 to 11, wherein the insects on the plant are: ˙ aphids and whiteflies on tomatoes; ˙ bugs and bugs on soybeans; ˙ red peppers Thrips; ˙Cicadas on pasture; ˙Stickers and moths on corn; ˙Whiteflies and cucurbit beetles on dried beans; ˙Thrips on onions; ˙Cicadas and weevil beetles on sugarcane; Aphids and thrips on the grass; and ˙Stink bugs and whiteflies on cotton. A method for protecting plants against insect pests, the method comprising the step of applying an effective amount of the insecticidal composition according to any one of claims 1 to 7 on plants, plant surrounding areas or plant seeds.