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Pesticide preparation for preventing and treating rice hoppers and other rice pests

A technology for pesticide preparations and pests, which is applied in the field of preparation of pesticides and pesticide preparations, can solve the problems of pest control effects, high production costs, azadirachtin efficacy, and long-lasting effects, etc., and achieves the expansion of pest control spectrum and price Effects of low cost and low environmental selection pressure

Inactive Publication Date: 2010-10-06
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the production cost of azadirachtin preparations in the field is relatively high. In addition, azadirachtin is prone to photolysis and hydrolysis in the natural environment, which affects the efficacy and persistence of azadirachtin. The control effect has been affected to a certain extent
As a chemical pesticide, flubendiamide has a good control effect on rice pests. However, in order to improve the control effect of pesticides on pests, farmers continue to increase the dosage of pesticides. In addition, pests are prone to develop resistance to pesticides.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1: Composition and preparation method of 22.0% azadirachtin · flubendiamide EC

[0037] The weight percent (%) of each active ingredient of the main agent is: azadirachtin 2.0, flubendiamide 20.0.

[0038] The weight percent (%) of each component of the auxiliary agent is: solvent, xylene 59.8, methanol 5.0; cosolvent, cyclohexanone 0.2; emulsifier, dibenzylphenol polyoxyethylene ether 8.0. Tween-204.0; stabilizer, pyrogallic acid 0.5, castor oil 0.5.

[0039] The above-mentioned weight ratio raw materials are mixed to make emulsifiable concentrate by traditional emulsifiable concentrate processing method.

Embodiment 2

[0040] Example 2: Composition and preparation method of 22.0% azadirachtin·flubendiamide microemulsion

[0041] The weight percent (%) of each active ingredient of the main agent is: azadirachtin 2.0, flubendiamide 20.0.

[0042] The weight percent (%) of each component of the auxiliary agent is: emulsifier, tristyrylphenol oxiraneated triethanolamine phosphate salt 35.0, polyoxyethylene phenylphenol ether 35.0; solvent, dimethylformamide 1.0, pyrrolidone 1.0 ; Stabilizer, pyrogallic acid 0.1; antifreeze agent, ethylene glycol 0.1, glycerol 1.0; water 4.8.

[0043] The traditional microemulsion processing method is used to make microemulsion after mixing the raw materials in the above weight ratio.

Embodiment 3

[0044] Example 3: Composition and preparation method of 22.0% azadirachtin·flubendiamide aqueous emulsion

[0045] The weight percent (%) of each active ingredient of the main agent is: azadirachtin 2.0, flubendiamide 20.0.

[0046] The weight percentage (%) of each component of the auxiliary agent is: solvent, xylene 30.0, N-long chain alkylpyrrolidone 30.0; emulsifier, 2,4,6-tris(1-phenylethyl)phenol poly(20) ethylene glycol Alcohol phosphate monoester 4.0; dispersant, polyvinyl alcohol 0.2; antifreeze agent, glycerol 0.1; water 13.7.

[0047] After mixing the raw materials in the above weight ratio, the insecticide emulsion in water is prepared by the traditional emulsion-in-water processing method.

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PUM

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Abstract

The invention relates to a pesticide preparation for preventing and treating plant hoppers and other rice pests and relates to the technical field of a pesticide. A main agent of the pesticide preparation is a mixture mainly comprising the following active ingredients in percentage by weight: 0.1 to 2.0 percent of azadirachtin and 0.1 to 50.0 percent of flubendiamide. The main agent and an auxiliary agent are used to prepare a cream agent, a microemulsion, an emulsion in water or a suspending agent. The pesticide preparation is efficient for the rice pests such as the plant hoppers and the like, can prevent and treat the rice pests such as the plant hoppers in different instars, can completely kill the pests, has low pollution to the environment and low production cost and is suitable forchemical prevention of the rice pests such as the plant hoppers and the like.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to the technical field of preparation of pesticide preparations for controlling rice pests such as planthoppers. Background technique [0002] Rice is an important food crop that 35% of people in the world depend on for survival, and its yield is related to social stability. However, during the whole growth and development process of rice, it is often attacked by various diseases and insect pests, especially insect pests, among which stem borers, rice leaf rollers and rice planthoppers are the three major pests that harm rice. Due to global warming, the state of pests has changed. In recent years, rice borers, rice planthoppers and other pests have broken out in large areas across the country, seriously threatening the sustainable production of rice. Rice pests are becoming more and more rampant, general insecticides cannot achieve the desired effect, and some pesticides with hi...

Claims

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Application Information

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IPC IPC(8): A01N43/90A01N41/10A01P7/04
Inventor 陈小军杨益众苏宏华费春
Owner YANGZHOU UNIV
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