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Aqueous dispersion granulated insecticide containing Rhaponticum uniflorum

A technology of dispersible granules and insecticides, applied in the direction of insecticides, biocides, animal repellants, etc., can solve the problems of dust drift, dust flying, crop damage, etc., and achieve good storage stability and simple preparation process , fast disintegration effect

Inactive Publication Date: 2007-07-18
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The emulsifiable concentrate contains a large amount of organic solvents such as xylene and toluene, which not only causes serious pollution to the environment, but also wastes petrochemical resources.
Due to its very fine particle size, wettable powder often has dust flying during production and use, which not only endangers people's health, but also causes environmental pollution. A small amount of flying dust can easily cause phytotoxicity of crops
The main problem of powder is dust drift, large volume, and difficult to measure. It is only used in arid areas and some specific places.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: take out 54.0kg of reed rhizome methanol extract, and acrylic acid homopolymer sodium salt 1.0kg, pull open powder 1.0kg, aluminum chloride 8.0kg, polyvinylpyrrolidone 2.0kg, succinic acid 1.0kg, white carbon Black 33.0kg, mixed evenly, pulverized into powder by ultra-fine jet mill, then put into fluidized bed granulation dryer for granulation, drying, after sieving, sampling and analysis, can be packaged if qualified. The 2400-fold solution of the preparation was used to carry out a field drug efficacy test, and the control effect on cabbage rapae was 98.1% on the 6th day after spraying, and the 48-hour mortality rate on mosquito larvae was 97.6%.

Embodiment 2

[0022] Embodiment 2: take out 52.0kg of reed rhizome methanol extract, and 6.0kg of acrylic acid homopolymer sodium salt, pull open powder 6.0kg, aluminum chloride 9.0kg, polyvinyl alcohol 3.0kg, succinic acid 4.0kg, white carbon Black 20.0kg, mixed evenly, pulverized into powder by ultrafine jet mill, then put into fluidized bed granulation dryer for granulation, drying, after sieving, sampling and analysis, can be packaged if qualified. Using 2400 times of the preparation to carry out the field efficacy test, the control effect on cabbage worm was 95.7% on the 6th day after spraying, and the 48-hour mortality rate on mosquito larvae was 95.4%.

Embodiment 3

[0023] Embodiment 3: take out 48.2kg of reed rhizome methanol extract, and phosphate 1.0kg, sodium dioctyl sulfosuccinate 1.5kg, acrylic acid homopolymer sodium salt 1.5kg, sodium lauryl sulfate 3.5kg, bentonite 9.0kg , 3.0kg of gum arabic, 1.0kg of polyvinyl alcohol, 1.5kg of disodium hydrogen phosphate, and 29.8kg of diatomite, after mixing evenly, pulverize into powder through an ultra-fine jet mill, and then add it to a fluidized bed granulation dryer Carry out granulation, drying, and after sieving, take a sample and analyze it, and if it is qualified, it can be packaged. The 2200-fold solution of the preparation was used to carry out a field drug efficacy test, and the control effect on cabbage worm was 94.9% on the 6th day after spraying, and the 48-hour mortality rate on mosquito larvae was 96.3%.

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PUM

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Abstract

An insecticide in the form of water-dispersing particles for preventing and eliminating mosquito larvae and cabbage caterpillar contains proportionally the extract of uniflower swisscentraury root, disperser, lubricant, disintegrant, adhesive, stabilizer and carrier.

Description

technical field [0001] The invention relates to a botanical insecticide for preventing and controlling mosquito larvae and vegetable pests, in particular to a water-dispersible granule insecticide for leaking reed. Background technique [0002] Traditional pesticide formulations such as emulsifiable concentrates, powders and wettable powders account for about 80% of the total formulations in my country. In recent years, with the continuous development of pesticide formulations, the shortcomings of traditional formulations have become more prominent. The emulsifiable concentrate contains a large amount of organic solvents such as xylene and toluene, which not only causes serious pollution to the environment, but also wastes petrochemical resources. Due to its very fine particle size, wettable powder often produces flying dust during production and use, which not only endangers people's health, but also causes environmental pollution. A small amount of flying dust can easily c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/00A01N25/24A01P7/04A01N65/12
CPCY02A50/30
Inventor 何道航李润华
Owner SOUTH CHINA UNIV OF TECH
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