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Compound pesticides containing avermectin

A technology of abamectin and insecticide, which is applied in the field of control of cotton spider mite, compound insecticide, and cotton bollworm, can solve the problems of large damage of cotton bollworm and spider mite, and achieve good control effect

Inactive Publication Date: 2008-05-28
张少武
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] It can be seen that cotton bollworm and spider mite are extremely harmful, and have co-occurrence on cotton, and are all highly resistant insect pests. However, there is no insecticide that can effectively control these insect pests.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In this example, A becomes: abamectin, and component B is: cyhalothrin, profenofos, bifenthrin or triazophos. Through the ratio of AB, the synergistic research of mutual compounding is carried out. Indoor virulence determination and mixed formula screening of cotton bollworm and spider mite with different ratios.

[0023] The test agent is the original drug provided by the manufacturer. This experiment is carried out by the growth rate method, and the same amount of sterilized water is mixed with the medium as the control. The toxicity equation and the lethal intermediate concentration EC50 are calculated by the least square method, and the concentration of the drug is calculated by the Wadley method. Combined synergistic ratio (SR) toxicity index of different proportions and Sun Yunpei method to calculate the toxicity index of agents and the co-toxicity coefficient of mixed use (CTC method). If the co-toxicity coefficient is less than 80, it is an antagonistic effect, ...

Embodiment 2

[0043] Embodiment 2: Abamectin and cyhalothrin mixed control cotton spider mite

[0044]Proportion by weight (unless otherwise specified, all refer to weight percentage) 25 parts of abamectin, 50 parts of cyhalothrin, 80 parts of wetting agent alkyl succinic acid sulfonate, 70 parts of dispersing agent polyvinylpyrrolidone, disintegration 60 parts of sodium carbonate as an agent, 40 parts of diatomaceous earth as an adsorbent, 50 parts of disodium hydrogen phosphate as a stabilizer, and 595 parts of bentonite as a filler. After mixing them evenly, they are pulverized by a jet mill to obtain mother powder, and the mother powder is bonded with 30 parts Mix the gelatin evenly, then granulate, dry, and sieve to make water-dispersible granules. The formula is diluted and sprayed by 1000-1500 times, and the control effect in the field is 93.86% three days after spraying. This invention takes 15% avermectin water-dispersible granules as reference objects and 60% cyhalothrin water-di...

Embodiment 3

[0045] Embodiment 3: Abamectin and profenofos mixed control cotton spider mite

[0046] Proportions by weight (unless otherwise specified, all refer to weight percent) 12.5 parts of abamectin, 375 parts of profenofos, 60 parts of wetting and dispersing agent alkyl aryl polyoxyethylene ether, 50 parts of antifreeze ammonium sulfate, 5 parts of thickening agent xanthan gum, 6 parts of antifoaming agent polyether defoaming agent, and water to make up to 1000 parts to make a suspending agent. The formula is diluted and sprayed by 1000-1500 times, and the field control effect is 89.78% 3 days after spraying. This invention takes 25% abamectin suspension as reference object and 45% profenofos suspension as reference object, use according to the same method, the control effect after drug treatment is 54.32% and 61.18% respectively, obviously can see The mixed preparation is more than 1.5 times higher than the single agent control effect of the two.

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PUM

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Abstract

The invention provides a compound insecticide containing avermectin, active compositions of the invention consist of the avermectin and one of cyhalothrin, profenofos, bifenthrin or triazophos. The invention can be used for controlling insect pest in agriculture or in forest, and especially has good control effect on cotton bollworms, red spider, etc.

Description

technical field [0001] The present invention relates to a kind of insecticide, specifically a kind of compound insecticide containing abamectin, the present invention also relates to its application in agricultural or forestry insect pest control, especially for cotton spider mite, Control of cotton bollworm. Background technique [0002] Abamectin, the English name Avermectin, is a class of 16-membered macrolide compound with insecticidal, acaricidal and nematicidal activities first developed by Satoshi Omura of Kitasato University in Japan and Merck Company of the United States. It is produced from Streptomyces Produced by fermentation of Streptomyces avermitilis. In the late 1980s in my country, the 7051 strain was isolated and screened from the soil in Jieyang, Guangdong, developed by the Shanghai Pesticide Research Institute. After identification, it was proved that the strain was similar to S. avermitilis Ma-8460 and had the same chemical structure as avermectin. Mod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N53/08A01N57/10A01N57/16A01N43/90A01P7/04
Inventor 张少武
Owner 张少武
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