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Rotenone and dinotefuran mixed microemulsion and preparation method thereof

A technology of dinotefuran and rotenone, which is applied in the field of mixed insecticidal microemulsions of rotenone and dinotefuran and its preparation, can solve problems such as toxicity, and achieve the effects of low cost, significant drug effect, and simple preparation process

Inactive Publication Date: 2009-01-14
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the rotenone products used in the existing domestic and foreign pesticide markets, mainly based on rotenone emulsifiable concentrates, and the formulations of dinotefuran insecticide products are mainly wettable powders, powders and granules, resulting in dust pollution and emulsifiable concentrates To overcome the disadvantages of the toxicity of the preparation, provide a new type of pesticide with high efficiency, low toxicity, low cost, and environmental friendliness, which can effectively control cabbage aphids and cucumber bemisia tabaci. Friendly Pesticide Varieties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: Weigh rotenone 0.5kg, dinotefuran 45.0kg, then with 5.0kg phenylethylphenol polyoxyethylene ether, 3.0kg octyl phosphate sodium salt, 5.0kg butyl glycidyl ether, isoamyl alcohol 3.5 kg in a high-speed shearing machine and stirred evenly, finally add 38.0kg of deionized water, stir and mix evenly, let it stand for 10 hours, heat to 55°C, and stir well to make a microemulsion. The preparation was diluted with water to carry out the field drug efficacy test. The control effects of its 4800 times solution on the 7th and 14th days after the treatment of cabbage aphids were 87.3% and 83.5%, respectively, and the 3400 times solution on the 7th day after the treatment of cucumber bemisia tabaci. and 14 days of control effect were 90.2%, 85.3%.

Embodiment 2

[0018] Embodiment 2: take by weighing rotenone 0.6kg, dinotefuran 44.0kg, then with 2.0kg of phenylethylphenol polyoxyethylene ether, 2.5kg of nonylphenol polyoxyethylene ether, 1.5kg of benzylphenol polyoxyethylene ether, octane Phosphate sodium salt 2.0kg, butyl glycidyl ether 5.0kg, and isoamyl alcohol 4.5kg were stirred and mixed evenly in a high-speed shearing machine, and finally 37.9kg of deionized water was added, stirred and mixed evenly, and left to stand for 11 hours , heated to 53 ° C, and fully stirred, it can be made into a microemulsion. The preparation was diluted with water to carry out the field drug efficacy test. The control effect of its 4800 times solution on the 7th day and 14th day after the treatment of the cabbage aphid was 90.5%, 88.0% respectively, and its 3400 times solution on the 7th day after the treatment of the cucumber bemisia tabaci. and 14 days of control effect were 91.3%, 87.5%.

Embodiment 3

[0019] Embodiment 3: Weigh 25.0kg of rotenone and 1.5kg of dinotefuran, and then mix them with 6.0kg of phenylethylphenol polyoxyethylene ether, 6.5kg of nonylphenol polyoxyethylene ether, and 7.0 kg of di-sec-octyl sulfosuccinate sodium salt. kg, azone 8.0kg, butyl glycidyl ether 5.0kg, phenyl glycidyl ether 6.0kg, acetone 6.0kg in a high-speed shearing machine, stir and mix evenly, and finally add 29.0kg of deionized water, stir and mix evenly, After standing still for 7 hours, heating to 56°C, and fully stirring, the microemulsion can be made. The preparation was diluted with water to carry out the field drug efficacy test. The control effects of its 3500 times solution on the 7th and 14th days after the treatment of cabbage aphids were 93.2% and 88.7%, respectively, and the 2500 times solution on the 7th day after the treatment of cucumber bemisia tabaci was 93.2% and 88.7%. and 14 days of control effect were 90.7%, 84.4%.

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Abstract

The invention discloses a rotenone and dinotefuran composite microemulsion and its preparing process, wherein the microemulsion comprises the constituents (by weight percent) of rotenone 0.5-25%, dinotefuran 1.5-45%, emulsifying agent 3-22%, penetrating agent 2-16%, stabilizing agent 1-15%, auxiliary solvent 2-20%, deionized water 22-72%. The preparation comprises the steps of stirring and mixing homogeneously, charging deionized water, stirring and mixing homogeneously again, then stewing for 5-12 hours, heating to 41-58 deg C, and sufficiently blending.

Description

technical field [0001] The invention relates to an insecticide mixing technology, in particular to an insecticidal microemulsion mixed with rotenone and dinotefuran and a preparation method thereof. Background technique [0002] In recent years, the restrictions on the use of organic solvents in pesticide preparations in developed countries such as the United Kingdom and the United States have become increasingly stringent, and xylene has been banned as a solvent for pesticides. This is a challenge for EC preparations, and wettable powders and powders will bring dust. Pollution, thus promoting the development of pesticides along the direction of high efficiency (super efficiency), low toxicity, safety, biological rationality and good environmental compatibility. While strengthening the research and development of new pesticides, people pay more attention to the research and development of pesticide formulations. Among them, the new formulations of pesticides based on water h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/44A01P7/04A01N43/90
Inventor 何道航
Owner SOUTH CHINA UNIV OF TECH
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