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Biphenthrin dichlorvos compound insecticide

A technology of bifenthrin and dichlorvos, applied in the directions of pesticides, biocides, animal repellents, etc., to achieve the effects of reducing pollution, reducing drug costs, and reducing pesticide residues

Inactive Publication Date: 2009-10-28
JIANGSU ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Pesticide compounding is an effective method to improve control efficiency and expand control targets, slow down pest resistance, reduce pollution, and reduce pesticide residues. At present, compound insecticides for bifenthrin and dichlorvos have not been reported

Method used

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  • Biphenthrin dichlorvos compound insecticide
  • Biphenthrin dichlorvos compound insecticide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The preparation of 40% bifenthrin dichlorvos emulsifiable concentrate (the ratio of the original drug of bifenthrin and the original drug of dichlorvos in the active pharmaceutical ingredients is 1:1):

[0022] Auxiliary selection: DMF, Nongru 0206, Nongru 2201.

[0023] Solvent of choice: Toluene.

[0024] Each component is prepared according to the following percentages by weight:

[0025] Bifenthrin: 20%; Dichlorvos: 20%; DMF 5%; Nongru 1205: 5%; Nongru 0206: 5%; solvent: toluene, add to 100g.

[0026] Preparation process: Dissolve bifenthrin with a small amount of acetone, then add dichlorvos, DMF, Nongru 1205, and Nongru 0206 in sequence, then fill it with toluene to 100%, mix the above mixture in a volumetric flask to obtain 40% biphenyl Permethrin dichlorvos EC.

Embodiment 2

[0028] The preparation of 40% bifenthrin dichlorvos aqueous suspension (the ratio of the original drug of bifenthrin and the original drug of dichlorvos in the active pharmaceutical ingredient is 1: 3):

[0029] Auxiliary selection: sodium lignosulfonate, OP-10; CMC; organosilicone; ethylene glycol.

[0030] Solvent of choice: water.

[0031] Each component is prepared according to the following weight percentages:

[0032] Bifenthrin: 10%; Dichlorvos: 30%; Sodium lignosulfonate: 10.0%; OP-10: 5.0%; Thickener CMC: 1.0%; Defoamer organic silicone: 0.01%; Antifreeze B Diol: 8.0%; Water: add to 100 g.

[0033] Preparation process: put bifenthrin, dichlorvos, sodium lignosulfonate, OP-10, thickener CMC, defoamer organic silicone, antifreeze ethylene glycol in the reaction kettle according to the above ratio, add water to Mix 100% evenly, then introduce the mixture into a sand mill and grind until the material fineness is 1-5 μm; after grinding, mix evenly to form a water suspen...

Embodiment 3

[0035] Tested pesticide: 40% bifenthrin dichlorvos emulsifiable concentrate (provided in Example 1);

[0036] Control pesticide: 10% bifenthrin emulsifiable concentrate (self-made), 40% dichlorvos emulsifiable concentrate (self-made);

[0037] Insects for testing: 2 instar diamondback moth larvae (indoor rearing of Jiangsu Academy of Agricultural Sciences);

[0038] Determination method: insect dipping method.

[0039] Insect soaking method: the test drug solution was diluted into 5 concentration gradients, 20 2-instar diamondback moth larvae were immersed in the drug solution for 15 seconds, taken out and dried, and then inserted into a petri dish with fresh and non-polluting vegetable leaves. Treat 3 repetitions. At the same time, water was used as a control treatment. After 24 hours, check the number of living insects, calculate the corrected mortality rate, and calculate the lethal concentration (LC 50 ).

[0040] Toxicity determination method of 40% bifenthrin dichlo...

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Abstract

The invention relates to a bifenthrin dichlorvos compound insecticide, comprising effective active ingredients, auxiliary agents and solvents, wherein: the effective active ingredients account for 2 to 60% by weight of the finished drug, and the effective active ingredients are composed of It consists of bifenthrin and dichlorvos, and their weight percentages in the active ingredients are: 10-90% of bifenthrin and 10-90% of dichlorvos. The advantages of the present invention are: after compounding the pyrethroid insecticide bifenthrin and the organophosphorus insecticide dichlorvos, compared with the existing single-agent use, the effect is obviously synergistic, and the insecticidal activity is greatly improved. The insecticidal spectrum is expanded, the resistance of pests is slowed down, and the cost of medication is greatly reduced; since both bifenthrin and dichlorvos are easily degradable, bifenthrin-dichlorvos compound insecticides are more effective in the environment. It is easier to degrade, reducing pollution and pesticide residues.

Description

Technical field: [0001] The invention belongs to pesticides for preventing and controlling agricultural pests, and relates to a compound pesticide whose active ingredients are bifenthrin and dichlorvos. Background technique: [0002] my country's dryland crops mainly include vegetables, tea, fruit trees, cotton, corn, wheat, pasture and so on. These dryland crops will be attacked by pests such as pests and weeds to varying degrees during their growth process. In order to improve the yield and quality of crops, it is inevitable to use pesticides. [0003] Cruciferous vegetable pests in my country mainly include the following types: diamondback moth, cabbage caterpillar, spodoptera litura, beet armyworm, cabbage aphid, etc. [0004] The main pests on tea in my country are: inchworm, tea leaf moth, tea leaf moth, tea caterpillar, leafhopper, whitefly, scale insect and so on. [0005] Pests on fruit trees mainly include: aphids, golden flower bugs, spider mites and scale insec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N57/10A01P7/04A01N53/08
Inventor 余向阳张志勇刘贤金王冬兰
Owner JIANGSU ACAD OF AGRI SCI
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