Composition for preventing tea lesser leafhoppers

A tea green leafhopper and composition technology, applied in the fields of application, animal repellent, plant growth regulator, etc., can solve the problem of high resistance risk, achieve the effect of expanding the control spectrum, alleviating pest resistance, and fast speed

Active Publication Date: 2015-07-15
山东中新科农生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with large-scale drug use, the risk of resistance after application is also very high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] 42% water dispersible granules: combination of beta-cypermethrin and carbaryl

[0055] Beta-trans-cypermethrin 40%,

[0056] Carbaryl 2%,

[0057] Polyoxyethylene polyoxypropylene block copolymer 8%;

[0058] Sodium tripolyphosphate 4%;

[0059] Sodium Alkyl Sulfate 7%;

[0060] Ammonium sulfate 10%;

[0061] Silica balance.

[0062] The preparation method is a conventional method in the art.

[0063] This embodiment medicament is applied to the prevention and treatment of tea leafhopper:

[0064] Co-toxicity coefficient: 859.6;

[0065] Add water to dilute the spray by 3000 times, and the control effect is 98.7% 5 days after the application. The 40% beta-cypermethrin suspending agent is diluted 1000 times and the 2% carbaryl emulsifiable concentrate is diluted 500 times. Use the same method respectively, 5 days after the application, The control effects were 81.6% and 70.3%, respectively, with significant differences.

Embodiment 2

[0067] 6% emulsion in water: combination of beta-cypermethrin and carbaryl

[0068] Beta-cypermethrin 3%,

[0069] Carbaryl 3%,

[0070] Phenylphenol polyoxyethylene polyoxypropylene ether 10%,

[0071] Cyclohexanone 15%,

[0072] Propylene Glycol 2%,

[0073] Isooctanol 2%,

[0074] Polyvinyl alcohol 0.5%,

[0075] The balance is water.

[0076] The preparation method is a conventional method in the art.

[0077] This embodiment medicament is applied to control cotton bollworm:

[0078] Co-toxicity coefficient: 745.2;

[0079] Add water to dilute the spray by 2000 times, and the control effect is 96.7% 5 days after the application. The 3% beta-cypermethrin suspending agent is diluted 1000 times and the 3% carbaryl emulsifiable concentrate is diluted 500 times. Use the same method respectively, 5 days after the application, The control effects were 78.5% and 71.3%, respectively, and the difference was significant.

Embodiment 3

[0081] 32% water dispersible granules: combination of beta-cypermethrin and carbaryl

[0082] Beta-cypermethrin 30%,

[0083] Carbaryl 2%,

[0084] Sodium lignosulfonate 9%;

[0085] Sodium pentapolyphosphate 5%;

[0086] Sodium alkylnaphthalene sulfonate 5%;

[0087] Anhydrous sodium sulfate 5%;

[0088] Attapulgite margin.

[0089] The preparation method is a conventional method in the art.

[0090] This embodiment medicament is applied to control Spodoptera litura:

[0091] Co-toxicity coefficient: 767.8;

[0092] Add water to dilute the spray by 3000 times, and the control effect is 97.20% 5 days after the application. The 30% beta-cypermethrin suspending agent is diluted 2000 times and the 2% carbaryl emulsifiable concentrate is diluted 200 times. Use the same method respectively, 5 days after the application, The control effects were 77.5% and 70.3%, respectively, and the difference was significant.

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PUM

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Abstract

The invention belongs to the technical field of compounding pesticides and insecticides, in particular to a composition for preventing and treating green leafhoppers. The effective ingredients of the composition are beta-cypermethrin and carbaryl, wherein the weight ratio of beta-cypermethrin and carbaryl is beta-cypermethrin: carbaryl=5:1-15:1, thereby reducing the The dosage also alleviates the impact on the environment, conforms to the trend of green environmental protection in the future society, and the composition of the present invention receives the best crop protection effect.

Description

technical field [0001] The invention belongs to the technical field of compounding pesticides and insecticides, in particular to a composition for preventing and treating green leafhoppers. Background technique [0002] Beta-cypermethrin [0003] English name: theta-cypermethrin [0004] Molecular formula: C 22 h 19 C I2 NO 3 [0005] Chemical name: (S)a-cyano-3-phenoxybenzyl(1R,3S)-3-(2,2-dichlorodienyl)-2,2-dimethylcyclopropanecarboxylate and (R)-a-cyano-3-phenoxybenzyl(1S,3R)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate [0006] Chemical class: Pyrethroids [0007] Physical and chemical properties: The appearance is white or light yellow crystalline powder, without visible foreign impurities. Specific gravity at 25°C: 1.219g / m 3 ; Melting point 78-81 ° C; vapor pressure (20 ° C) 2.3 × (10 minus 7) Pa; low solubility in water at room temperature, soluble in ketones, alcohols and aromatic hydrocarbon solvents. [0008] Features: Trans-cypermethrin is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N53/08A01P7/04A01N47/22
Inventor 王世辉
Owner 山东中新科农生物科技有限公司
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