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Preparation method of insecticide composition

A technology of insecticidal composition and mixture, which is applied in the direction of botanical equipment and methods, insecticides, biocides, etc., which can solve the problems of poor control effect, increased dosage, environmental pollution, etc., and achieve small environmental pollution and reduce environmental pollution. Dosage, convenience of storage and use

Inactive Publication Date: 2015-03-04
张鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In recent years, the piercing-sucking mouthparts pests on crops have caused serious damage. Farmers have developed severe resistance to drugs such as imidacloprid, bifenthrin, and chlorpyrifos for a long time. There have been problems of increasing the dosage of drugs and poor control effects, and the environmental pollution has also tended to serious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: 30% thiacloprid·chlorfenapyr water-dispersible granules.

[0026] Weigh 10% of the original drug of thiacloprid, 20% of chlorfenapyr, 1% of saponin powder, 5% of sodium lignosulfonate, 5% of ammonium sulfate, and 5% of light calcium carbonate, mix the above raw materials, and stir well The mother powder is obtained through the jet mill, and the mother powder is mixed with 2% polyvinylpyrrolidone evenly, and then made up to 100% with kaolin, and then granulated, dried, and sieved to obtain 30% thiacloprid · chlorfenapyr water dispersion granules. The content of active ingredients after inspection is 10% thiacloprid, 20% chlorfenapyr, suspension rate≧75%, moisture≦2.5%, pH 7.2, particle size range (225~800um)≧98%, dispersibility≧85%, Wetting time≦90s, wet sieve test (through 75um sieve)≧98, long-lasting foaming property (after 1min)≦12ml, qualified for accelerated thermal storage stability.

[0027] The 30% thiacloprid·chlorfenapyr water-dispersible granule o...

Embodiment 2

[0028] Example 2: 50% thiacloprid·chlorfenapyr water-dispersible granules.

[0029] Weigh 20% of thiacloprid, 30% of chlorfenapyr, 3% of powder, 5% of carboxymethyl cellulose, 12% of ammonium bicarbonate, 25% of white carbon black; mix the above raw materials, stir them evenly and pass through the air flow Pulverizer to obtain mother powder, mix mother powder with 3% polyvinylpyrrolidone evenly, then make up to 100% with soluble starch, then granulate, dry, and sieve to obtain 50% thiacloprid·chlorfenapyr water dispersible granules agent. The content of active ingredients after inspection is 20% thiacloprid, 30% chlorfenapyr, suspension rate≧75%, moisture≦2.5%, pH 7.2, particle size range (225~800um)≧98%, dispersibility≧85%, Wetting time≦90s, wet sieve test (through 75um sieve)≧98, long-lasting foaming property (after 1min)≦12ml, qualified for accelerated thermal storage stability.

[0030] The 50% thiacloprid·chlorfenapyr water-dispersible granule of this example is used to...

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PUM

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Abstract

The invention discloses a preparation method of insecticide composition. The preparation method is characterized by comprising the following steps: (1) preparing the following ingredients in weight percentage: 1-50% of thiacloprid, 6-80% of chlorfenapyr, 2-12% of film-forming agent, 1-6% of wetting agent, 2-6% of disintegrating agent, 1-5% of cinnamyl aldehyde, 1-5% of chlorothalonil and the balance of carrier, and mixing the raw materials except cinnamyl aldehyde to obtain a mixture; (2) carrying out superfine grinding on the mixture by a jet mill to obtain high-concentration powder; (3) weighing a certain amount of high-concentration powder after superfine grinding and placing into a vortex type fluidized bed; (4) starting the vortex type fluidized bed, and slowly adding a cinnamyl aldehyde aqueous solution for granulating; (5) drying after granulating; and (6) screening the dried granules and carrying out analytical testing to obtain water dispersible granules. The two effective ingredients are compounded to achieve remarkable synergism, the prevention effect can be improved and the using amount of the pesticide is reduced.

Description

[0001] Technical field: [0002] The invention relates to a preparation method of an insecticidal composition, in particular to a preparation method of a synergistic insecticidal composition containing thiacloprid and chlorfenapyr, which is used for preventing and treating thorns in rice, vegetables, fruit trees, flowers, lawns, etc. Suction mouthparts pests. [0003] Background technique: [0004] Thiacloprid is a new broad-spectrum insecticide with high efficiency against piercing-sucking mouthparts. According to different crops, pests and application methods, the dosage is 50.4-100.8g a.i. / hm2. Field trials have shown that thiacloprid has excellent control effects on important pests on tea trees, pome fruits, cotton, vegetables and potatoes. In addition to being effective against aphids, whiteflies, thrips, it is also effective against various beetles (such as potato beetle, apple weevil, rice weevil) and Lepidoptera pests such as leafminer and codling moth on apple tre...

Claims

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Application Information

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IPC IPC(8): A01N47/40A01N25/14A01P7/04A01N43/36A01N37/34
Inventor 张鹏
Owner 张鹏