CN1792150A - High lipid membrane phytoncide contg. - Google Patents

Abstract

The invention relates to a fungicide for preventing and treating anthracnose of fruit trees, which belongs to the technical field of chemical pesticides. The composition of the high-fat film fungicide containing 50% prochloraz is as follows: 25% prochloraz emulsifiable concentrate 14-24%, 25% high-fat film emulsion 74-84%, cinnamon ketone penetration enhancer, acrylic Acid emulsion adhesion promoter 1.2-1.5%, silicone defoamer 0.5-0.8%. The invention can kill and inhibit the growth of pathogenic bacteria; block pathogenic invasion, mislead the direction of germination tube of pathogenic bacteria, and comprehensively control the infection of pathogenic bacteria; Long; reduce the amount of chemical fungicides and residues on agricultural products. It is most suitable for preventing anthracnose of grapes, bananas, mangoes and other fruits and other crop diseases caused by Ascomycetes and Deuteromycetes. It can also be used for the preservation of grapes, bananas, mangoes and other fruits. The production process is simple, the product quality is stable, and the manufacturing cost and use cost are low.

Description

The high fat film bactericide that contains Prochloraz

Technical field:

The present invention relates to the bactericide of a kind of control fruit tree anthracnose [Colletotrichum gloeosporioides (Penz.) Sacc.], belong to the chemical pesticide technical field.

Background technology:

Fruit tree anthracnose such as grape, banana, mango are worldwide diseases, and lose about 10%～30% because of the fruit yield that this disease causes every year in the whole world.This disease can endanger all green portion such as the blade, young sprout, fruit of fruit tree.Particularly in the fructescence, if continuous high temperature is rainy, be difficult to carry out the efficacious agents control, cause fruit rot, its incidence of disease is essentially percent of loss.

Although research and develop out the multiple chemical bactericides of preventing and treating anthracnose such as rosin copper, first sulphur nitrile bacterium, Prochloraz both at home and abroad, these bactericide are concluded following shortcoming: drug effect is short, germ easily develops immunity to drugs; Under continuously rainy situation, medicament is diluted and washes away by rainwater easily and loses drug effect; Tool is residual, easily contaminated food products and environment.

As independent Prochloraz (prochloraz) is a kind of wide spectrum, low toxicity type imidazoles bactericide, work by the biosynthesis that suppresses germ cell membrane sterol, inhale effects such as conduction, prevention, protection and treatment in plant corpus, having, easily develop immunity to drugs but have drug effect phase short, germ; Under continuously rainy situation, medicament is diluted and washes away by rainwater easily and loses drug effect; Tool is necessarily residual, easily pollutes shortcomings such as fruit.The a plurality of at home and abroad manufacturer production of this former medicine.

Independent high fat film (palmityl alcohol-lauryal alcohol) is the film forming matter of being made by senior fatty alcohols such as 12 carbon alcohol and 16 carbon alcohol, it is the white milk cream shape aqueous emulsion of from plants such as coconut, extracting, nontoxic, soluble in water, be sprayed at and make body surface, can spread automatically, spread, form the very thin unimolecule fatty alcohol film of one deck.Though germ still can be invaded people's plant corpus, because of film control is arranged, invade can not expand behind the people or seldom expansion cause harm, thereby reach the diseases prevention purpose.The term of validity reached more than 15 days, belonged to physical control, and germ can not develop immunity to drugs, and was a kind of " nuisanceless " pesticide synergistic agent.But it is different from the conventional chemical bactericide, and itself does not have bactericidal action.Domestic a plurality of manufacturer production.

Summary of the invention:

The present invention has overcome the deficiency of existing bactericide, and it is long to provide a kind of medicament to be difficult for by rain drop erosion, drug effect phase, and germ is difficult for developing immunity to drugs, to agricultural product residual, pollution is little, the NEW TYPE OF COMPOSITE bactericide with protection, sterilization double action.

Compound disinfectant mainly contains Prochloraz and two kinds of main components of high fat film and a small amount of auxiliary element.

Its composition is by weight percentage:

25% Prochloraz missible oil 14～24%

25% high fat film emulsion 74～84%

Promoter 1.2～1.5%.

Defoamer 0.5～0.8%.

Described promoter is osmanthus ketone penetration enhancer, acrylic acid emulsion adhesion promoter.

Described defoamer is a silicone defoaming agent.

After above-mentioned main component and auxiliary element mixed, 40 ℃ were stirred down and promptly can be made into the 50% high fat film bactericide that contains Prochloraz in 8～15 minutes in retort.

Its production technology is simple, constant product quality, manufacturing cost and use cost are also lower.

Using method:

1. prevent and treat grape, banana, mango anthracnose

After fruit tree blooms and bears fruit,,, before gathering, fruit ear shortens to once after entering rainy season every medication in 15 days every spraying in 30 days 1 time with 50% 200～300 times of liquid of high fat film bactericide that contain Prochloraz.If grape, banana, Mango Fruit bagging in vegetative period can soak fruit or spraying with 200 times of liquid of above-mentioned medicament before bagging.

2. fruit anti-corrosive fresh-keeping:

Grape, banana, mango can infect and endanger and rot at fruit maturation with after gathering because of the continuation of anthrax-bacilus.Use 50% 200 times of liquid of high fat film bactericide that contain Prochloraz and pick up after 1 minute and dry, can play the effect of fruit anti-corrosive fresh-keeping soaking fruit under the fruit normal temperature of gathering the same day.

After the invention has the beneficial effects as follows that above-mentioned two kinds of active ingredients are made complexing agent, the organically combination of physical protection effect of the chemosterilization of Prochloraz and high fat film is killed and is suppressed growth of pathogenic bacteria; The diaphragm blocking-up cause of disease invasion of medicament spread, the trend of misleading pathogen germ tube is controlled infecting of germ all sidedly.Complexing agent has increased the water repellency of leaf surface in addition, and medicament is difficult for by rain drop erosion, and the drug effect phase is long; Germ is difficult for developing immunity to drugs; The consumption of chemical bactericide and residual on agricultural product have been reduced.Be best suited for anthracnose and other various crop disease that causes by sac fungi and imperfect fungus of fruits such as control grape, banana, mango.

Embodiment

Embodiment one

Implement agricultural chemicals:

1. Prochloraz missible oil 14%, high fat film emulsion 84%, osmanthus ketone penetration enhancer 1.2%, silicone defoaming agent 0.8%.

2. Prochloraz missible oil 19%, high fat film emulsion 79%, acrylic acid emulsion adhesion promoter 1.25%.Silicone defoaming agent 0.75%.

3. Prochloraz missible oil 24%, high fat film emulsion 74%, osmanthus ketone penetration enhancer 1.5%, silicone defoaming agent 0.5%.

4. 25% Prochloraz emulsion

5. 16% rosin copper missible oil

6. 25% first sulphur nitrile bacterium wetting powder

7. 95% propiconazole

8. bordeaux mixture

Result of implementation:

Several medicaments of table 1 are prevented and treated implementation result to bitter rot or anthracnose of grape

Pesticide name	Disease tassel yield (%)	Disease index	Control efficiency (%)	The significance of difference
						0.05	0.01
				1. Prochloraz, high fat film is Prochloraz 2., high fat film is Prochloraz 3., and high fat film is 5. 6. 7. 8. bordeaux mixture clear water (contrast) of propiconazole of first sulphur nitrile bacterium of rosin copper missible oil of Prochloraz emulsion 4.	24.67 17.67 22.67 30.33 23.67 33.33 29.67 29.00 46.67			10.76 6.44 8.26 12.89 10.11 16.11 12.56 13.22 23.33	53.88 72.40 64.59 44.75 56.67 30.95 46.16 43.33 -	bc bc bc abc bc ab bc abc a	AB B AB AB AB AB AB A

Conclusion: as can be seen from the table, five kinds of effects for the examination agricultural chemicals are followed successively by: 2. Prochloraz missible oil 20%, high fat film emulsion 80% (72.40)＞3. Prochloraz missible oil 24%, high fat film emulsion 74% (64.59)＞5. 16% rosin copper missible oil (56.67%)＞1. Prochloraz missible oil 14%, high fat film emulsion 84% (53.88)＞7. 95% propiconazole (46.16)＞4. 25% Prochloraz emulsion (44.75)＞8. bordeaux mixture (43.33)＞6. 25% first sulphur nitrile bacterium (30.95).2. Prochloraz missible oil 20% wherein, high fat film emulsion 80% bactericidal agent for preventing and treating effect reaches 72.40%, and apparently higher than other medicament, preventive effect is comparatively outstanding, and preventive effect reaches utmost point significance level.

Embodiment two

Implement agricultural chemicals: 50% contains the high fat film bactericide of Prochloraz.

Implement layout: the diagonal grouping is adopted in test, handles twice repetition, two contrasts for one.

Implement to handle: on processed conventionally basis, after blooming, handle every 30 days and add the high fat film bactericide that spray contains Prochloraz for a time 50%, before fruit ear is gathered, shorten to once after entering rainy season every medication in 15 days.The fruit phase carries out spraying the first time medicine at the beginning of April 28, and May 13 was sprayed medicine for the second time, sprayed medicine for the third time on June 2, the 4th spray on June 24 medicine, and July 14 gathered in the crops.

Result of implementation:

Dongchuan District grape base, table 2 Kunming result of implementation

	Diseased plant numbers at different levels				The incidence of disease	Disease index	Relative control effect %
								0 grade	One-level	Secondary	Three grades
	Handle the contrast reprocessing and repeat contrast	490 450 488 444	10 42 12 45	0 8 0 11								0 0 0 0	2 10 2.4 11.2	2 5.8 2.4 6.7	65.51 64.18

Conclusion:

Since this year weather relatively the arid, 1～July, monthly average precipitation is 43.53 millimeters, than lacking 13.1 millimeters the same period over the years, therefore the generation of fruit ear anthracnose is lighter, and still, the control efficiency of " 50% contains the high fat film bactericide of Prochloraz " is remarkable, average out to 64.84% has its application value.

2. medicament is to the influence of crop and other biology

Do not see in the enforcement that grape produces poisoning, do not see that medicament produces promotion maturation, effects such as stimulating growth to grape yet.In addition, do not see of the generation useful or unhelpful influence of medicament medicine in the enforcement to other biology (wild plant, useful insect).

Claims (3)

1. a kind of high-fat film plant fungicide containing prochloraz, its composition is by weight percentage: 25% prochloraz EC 14～24% 25% high fat film emulsion 74～84% Accelerator 1.2～1.5% Defoamer 0.5～0.8% 2. the high-fat film plant fungicide containing prochloraz according to claim 1 is characterized in that said accelerator is a cinnamon ketone penetration accelerator, an acrylic acid emulsion adhesion accelerator. 3. the high-fat film plant fungicide containing prochloraz according to claim 1 is characterized in that said defoamer is an organosilicon defoamer.