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Permethrin-bifenthrin complex insecticide

A technology of permethrin bifenthrin and bifenthrin, which is applied in the field of compound pesticides, can solve the problems of exceeding the standard, high use cost, and pesticide residues in polluted agricultural products, so as to reduce pollution, increase toxicity, and slow down the resistance of pests. medicinal effect

Inactive Publication Date: 2010-09-15
农业部农药检定所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The object of the present invention is to provide a compound compound compound compounded by permethrin and bifenthrin for the problems of high cost of single dose of permethrin and bifenthrin, easy pollution and excessive pesticide residues in agricultural products. insecticide

Method used

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  • Permethrin-bifenthrin complex insecticide
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  • Permethrin-bifenthrin complex insecticide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Indoor toxicity assay

[0023] Pesticides to be tested: permethrin and bifenthrin compounded at 1:1 (the original drug of permethrin and the original drug of bifenthrin were compounded at 1:1);

[0024] Control pesticides: permethrin technical, bifenthrin technical;

[0025] Determination method: insect dipping method.

[0026] Insects for testing: 2nd instar diamondback moth (raised indoors by Jiangsu Academy of Agricultural Sciences) and cabbage caterpillar larvae (collected in the experimental field of Jiangsu Academy of Agricultural Sciences)

[0027] The pesticides to be tested were diluted with acetone into 5 concentration gradients, and the 2nd instar diamondback moth was immersed in different concentration gradients of each test liquid. Each time 20 larvae were used in different concentration gradient liquids, and the immersion time was 15 seconds. After drying, they were placed in a petri dish with fresh and uncontaminated vegetable leaves, and each treatment...

Embodiment 2

[0041] The preparation of 40% permethrin-bifenthrin emulsifiable concentrate (the ratio of the original drug of permethrin and the original drug of bifenthrin in the active pharmaceutical ingredients is 1: 1):

[0042] Auxiliary selection: DMF, Nongru 0206, Nongru 2201.

[0043] Solvent options: acetone and toluene.

[0044] Each component is prepared according to the following weight percentages:

[0045] Permethrin: 20%; Bifenthrin: 20%; DMF: 5%; Nongru 2201: 5%; Nongru 0206: 5%; solvent: toluene, balance (to 100%).

[0046] Preparation process: Dissolve permethrin in acetone, then add bifenthrin, DMF, Nongru 1205, Nongru 0206 in turn, then fill it with toluene to 100%, mix the above mixture in a volumetric flask to obtain 40% chlorine Permethrin Bifenthrin EC.

Embodiment 3

[0048] The preparation of 40% permethrin bifenthrin aqueous suspension (the ratio of the original drug of permethrin and the former drug of bifenthrin in the active pharmaceutical ingredient is 1: 3):

[0049] Auxiliary selection: sodium lignosulfonate, OP-10; CMC; organosilicone; ethylene glycol.

[0050] Solvent options: acetone and water.

[0051] Each component is prepared according to the following weight percentages:

[0052] Permethrin: 10%; Bifenthrin: 30%; Sodium Lignosulfonate: 10.0%; OP-10: 5.0%; Thickener CMC: 1.0%; Defoamer Silicone: 0.01%; Antifreeze Agent ethylene glycol: 8.0%; water: balance (up to 100%).

[0053] Preparation process: Dissolve permethrin and bifenthrin in acetone, then add sodium lignosulfonate, OP-10, thickener CMC, defoamer organic silicone, and antifreeze ethylene glycol in the above ratio. In a reaction kettle, add water to 100% and mix evenly, then introduce the mixture into a sand mill and grind until the material fineness is 1-5 μm; a...

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Abstract

The invention relates to a permethrin-bifenthrin complex insecticide, which comprises effective active ingredients, auxiliary agents and solvent, wherein the effective active ingredients account for 2-60% of the finished insecticide product by weight percent, the effective active ingredients comprise permethrin and bifenthrin, and the permethrin accounts for 1-99% of the effective active ingredients by weight percent. Compared with the use of any single insecticide, the invention achieves the obvious synergy effect, greatly improves the insecticidal activity, widens the insecticide controlling spectrum, slows the pest resistance to the insecticide, and greatly lowers the application cost after complexing the pyrethroid insecticides permethrin and bifenthrin. Since both the permethrin and the bifenthrin have easy degradability, the permethrin-bifenthrin complex insecticide can degrade easily in the environment, thereby reducing the pollution and the insecticide residue.

Description

Technical field: [0001] The invention belongs to a compound pesticide for preventing and controlling agricultural pests in dry land, and relates to a compound pesticide whose active ingredients are permethrin and bifenthrin. Background technique: [0002] Agricultural production provides a guarantee for the basic survival of human beings. Plant protection is the most common agricultural activity in agricultural production, and spraying chemical pesticides is the fastest and most effective method of plant protection against pests, insects, and weeds. An economically effective means that is irreplaceable in the foreseeable historical period. However, due to the long-term, large and especially irrational use of pesticides, the problem of excessive pesticide residues in agricultural products has become more and more prominent. At the same time, due to the continuous improvement of people's living standards, the problem of pesticide residues in agricultural products has also aro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N53/08A01N53/06A01P7/04
Inventor 龚勇单炜力叶纪明郑尊涛段丽芳
Owner 农业部农药检定所
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