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Powder preparation with diatomite as carrier and application method

A diatomaceous earth and carrier technology, applied in the field of pesticides, can solve the problems of poor spraying effect, chemical adhesion, and poor suspension effect, and achieve excellent leaf adhesion, fineness, and compensation for uneven adhesion.

Inactive Publication Date: 2013-10-30
INST OF VEGETABLE & FLOWERS CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The suspension effect of the preparation in the air is poor, and the spray effect and the adhesion of the medicine on the leaves are not good

Method used

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  • Powder preparation with diatomite as carrier and application method
  • Powder preparation with diatomite as carrier and application method
  • Powder preparation with diatomite as carrier and application method

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Embodiment 1: 5% dimethomorph dust agent, wherein the former medicine of dimethomorph accounts for 5% of gross weight, wetting agent sodium lauryl sulfate accounts for 2% of gross weight, dispersant sodium lignosulfonate It accounts for 5% of the total weight, diatomite accounts for 78% of the total weight, and white carbon black accounts for 10% of the total weight. After mixing, pulverization by jet mill and secondary mixing, the fineness of dust agent reaches D90=14.12, D50=9.28, D10=3.53.

Embodiment 2

[0034] Embodiment 2: 5% sclerotia net dust agent, wherein the former medicine of sclerotia accounts for 5% of gross weight, and wetting agent sodium butylnaphthalene sulfonate accounts for 2% of gross weight, and dispersant NNO accounts for 5% of gross weight , Diatomaceous earth accounts for 78% of the total weight, white carbon black accounts for 5% of the total weight, and talc accounts for 5% of the total weight. After mixing, crushing by jet mill and secondary mixing, the fineness of the dust agent reaches D90=15.01, D50=9.34, D10=3.54.

Embodiment 3

[0035] Embodiment 3: 2% difenoconazole dust agent, wherein the original drug of difenoconazole accounts for 2% of the total weight, the wetting agent lauryl polyoxyethylene ether accounts for 2% of the total weight, silicon Algae earth accounts for 80% of the total weight, white carbon black accounts for 5% of the total weight, and clay accounts for 11% of the total weight. After mixing, crushing by jet mill and secondary mixing, the fineness of the dust agent reaches D90=14.44, D50=9.23, D10=3.56.

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Abstract

The invention provides a powder preparation with diatomite as a carrier and an application method. The powder preparation is prepared by employing one or some pesticides or bactericides as effective constituents, employing diatomite as a main carrier, being added with a certain amount of auxiliaries, and being subjected to fluid energy milling to certain fineness. After being applied, the powder preparation has good suspension effects in air. Because of long suspension time, the powder preparation can be attached to positions where cannot be reached by spray application and the attached evenness on leaves is high. The powder preparation can be used for control of a plurality of diseases and insect pests of greenhouse vegetables and flowers. In field experiments, when the method is compared to traditional spray application methods, the powder preparation has better control effects on diseases and insect pests, and has beneficial effects of less dosage, high drug adsorption rate, simple technology, low cost and the like.

Description

Technical field: [0001] The invention belongs to the technical field of pesticides, and relates to a dust agent with diatomaceous earth as a carrier and a use method thereof. Background technique: [0002] Due to the airtight environment of the greenhouse, the water vapor in the greenhouse cannot be discharged in time, resulting in common indoor pests and diseases and difficult to control. Traditional spraying will further increase air humidity, which is not conducive to disease control. In the research of traditional dust agents, talc or clay is generally used as the main material, and the dispersion of the two in the air is poor, and the spraying effect is not good. The fineness of the preparation is relatively coarse, and there are only a few preparations that are generally not added except for additives. The added additives are usually stabilizers and do not contain other additives. The suspension effect of the preparation in the air is poor, and the spray effect and t...

Claims

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Application Information

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IPC IPC(8): A01N25/12A01N43/84A01N37/32A01N43/653A01N37/34A01N47/18A01N51/00A01N41/02A01N47/40A01P3/00A01P7/04A01P7/02
Inventor 李宝聚李建明石延霞谢学文王惟萍
Owner INST OF VEGETABLE & FLOWERS CHINESE ACAD OF AGRI SCI
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