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Diafenthiuron water dispersible granule and preparation method thereof

A technology of dispersible granules and diafenthiuron, which is applied in the fields of botanical equipment and methods, biocides, biocides, etc., can solve the problems of polluting cauliflower bulbs and reducing the value of commodities, and achieves convenient storage and transportation, less pollution, and disintegration. fast effect

Inactive Publication Date: 2008-04-30
张少武
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Insect droppings contaminate cauliflower bulbs, reducing commodity value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh 800 parts of diafenthiuron raw powder, 20 parts of wetting agent alkyl sulfate, 30 parts of dispersant fatty alcohol polyoxyethylene ether, 20 parts of disintegrating agent ammonium sulfate, 10 parts of adsorbent diatomaceous earth, stabilizer 20 parts of disodium hydrogen phosphate, 90 parts of light calcium carbonate as a filler, mix them evenly, and pulverize them with a jet mill to obtain mother powder, mix the mother powder with 10 parts of binder polyvinyl alcohol, then granulate and dry , and sieve to obtain diafenthiuron water-dispersible granules, and its control effect on apple red spider control is 89.01-97.89% in practice.

Embodiment 2

[0027] Weigh 750 parts of diafenthiuron raw powder, 26 parts of wetting agent sodium alkyl sulfonate, 37 parts of dispersing agent alkylphenol polyoxyethylene ether, 28 parts of disintegrating agent anhydrous sodium sulfate, 14 parts of adsorbent white carbon black parts, 18 parts of stabilizer succinic acid, 110 parts of filler kaolin, after mixing them evenly, pulverize them through an airflow mill to obtain mother powder, mix the mother powder with 17 parts of binder gelatin, then granulate, dry, pass The diafenthiuron water-dispersible granules were sieved, and the control effect on preventing and controlling citrus spider mite was 90.08-98.11%.

Embodiment 3

[0029] Weigh 770 parts of diafenthiuron raw powder, 30 parts of wetting agent alkylbenzene sulfonate, 35 parts of dispersing agent alkylphenol polyoxyethylene ether, 24 parts of disintegrating agent calcium chloride, 45 parts of adsorbent lignin 12 parts, 15 parts of stabilizer oxalic acid, 97 parts of filler anhydrous sodium sulfate, after mixing them evenly, pulverize them through a jet mill to obtain mother powder, mix the mother powder with 17 parts of binder polyethylene glycol, and then granulate , dried, and sieved to obtain diafenthiuron water-dispersible granules, which have a control effect of 88.23% to 97.99% for preventing and controlling tea leafhoppers in practice.

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Abstract

The invention discloses a diafenthiuron insecticide and acaricide, which belongs to insecticide and acaricide technology in plant protection field. The diafenthiuron insecticide and acaricide of the invention composition comprises diafenthiuron 20-800 parts, moistening agent 20-40 parts, dispersing agent 20-40 parts, disintegrating agent 20-80 parts, sorbent 10-60 parts, adhesive agent 10-50 parts, stabilizing agent 10-70 parts and filling material 50-500 parts. The above components are pro rata mixed and evenly stirred, then mesh powder obtained through disintegrating is evenly stirred with the adhesive agent, and diafenthiuron moisture free-flow agent is processed through granulating, drying and sieving. The diafenthiuron insecticide and acaricide of the invention overcomes the shortages of diafenthiuron wettable powder agent and diafenthiuron missible oil, lowers utilizing cost for farmers and environmental pollution. During utilizing process, the diafenthiuron insecticide and acaricide of the invention have the advantages of high content, fast disintegration, great dispersibility, favorable storing, great stability, high activity, great efficiency and safety, which are mainly applicable for preventing European red mites, citrus red mites, tea leafhoppers, cotton bollworms, vegetable diamondback moths and vegetable cabbage caterpillars.

Description

technical field [0001] The invention relates to an agricultural insecticide and acaricide. The active ingredient is diafenthiuron, and the dosage form is water-dispersible granule and a preparation method thereof. It is mainly used for the control of apple spider mites, citrus spider mites, tea leafhoppers, cotton bollworms, vegetable diamondback moths, and vegetable cabbage worms. Background technique [0002] At present, there are many kinds of agricultural insecticides and acaricides. Diafenthiuron single agent is the only highly active insecticide and acaricide in the market. It has systemic and fumigation effects and is highly effective against adults, larvae and nymphs. At the same time, it can also be used for leafhoppers, whiteflies, aphids, red spiders, cotton bollworms, diamondback moths and cabbage caterpillars and other pests and mites on tea, cotton and vegetables, with outstanding effects. Diafenthiuron raw powder single doses currently on the market are gener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/28A01N25/14A01P7/00
Inventor 张少武
Owner 张少武
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