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Long-acting insecticide against cnaphalocrocis medinalis of paddy rice

A technology of leaf rollers and insecticides, applied in the field of long-acting insecticides, can solve the problems of rice leaf rollers with short insect life, endangering human health, frequent occurrence of insect pests, etc., and achieve increased insect resistance , Improve permeability, good biocompatibility

Inactive Publication Date: 2018-11-09
来安县薜必英家庭农场
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, chemical agents are commonly used in the market to control the rice leaf roller, but the rice leaf roller has a short period of life, and there are many generations in a year, so it is easy to occur multiple times of insect pests, and it is necessary to spray chemical agents many times, which increases the workload. And easy to produce drug resistance, easy to residue in rice, endangering human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A long-acting insecticide against rice leaf roller, its raw materials include by weight: 90 parts of traditional Chinese medicine extract, 0.7 parts of abamectin, 1.5 parts of matrine, 1.5 parts of pyrethrins, and 6.5 parts of penetrant , 12 parts of porous starch, and 2 parts of surfactant; wherein, the Chinese medicine raw materials of the Chinese medicine extract include tea seed cake, Polygonum japonica, Andrographis paniculata, Forsythia japonicus, and tobacco.

Embodiment 2

[0019] A long-acting insecticide against rice leaf roller, its raw materials include by weight: 80 parts of traditional Chinese medicine extract, 1 part of abamectin, 1 part of matrine, 2 parts of pyrethrins, and 5 parts of penetrant , 15 parts of porous starch, and 1 part of surfactant; wherein, the Chinese medicine raw materials of the Chinese medicine extract include tea seed cake, Polygonum japonica, Andrographis paniculata, Forsythia japonicus, and tobacco;

[0020] Among them, the weight ratio of tea seed cake, hot Polygonum, Andrographis paniculata, Forsythia, and tobacco is 20:8:15:8:20;

[0021] In the process of preparing the Chinese medicine extract, tea seed cake, Polygonum syringae, Andrographis paniculata, Forsythia japonicus, and tobacco were pulverized to 20 meshes and mixed to obtain a mixture; the volume fraction was added to the mixture with 30 wt% ethanol aqueous solution, ultrasonicated for 5 minutes, and then Reflux for 5 hours, take back the effluent, ev...

Embodiment 3

[0023] A long-acting insecticide against rice leaf roller, its raw materials include by weight: 100 parts of traditional Chinese medicine extract, 0.5 parts of abamectin, 2 parts of matrine, 1 part of pyrethrin, and 8 parts of penetrant , 10 parts of porous starch, 3 parts of surfactant; wherein, the Chinese medicine raw materials of the Chinese medicine extract include tea seed cake, Polygonum spicosa, Andrographis paniculata, Forsythia japonicus, tobacco;

[0024] Among them, the weight ratio of tea seed cake, hot Polygonum, Andrographis paniculata, Forsythia, and tobacco is 15:10:10:10:15;

[0025] In the process of preparing the Chinese medicine extract, tea seed cake, Polygonum saponica, Andrographis paniculata, Forsythia japonicus, and tobacco were pulverized to 40 meshes and mixed to obtain a mixture; the volume fraction was added to the mixture with 20 wt% ethanol aqueous solution, ultrasonicated for 10 minutes, and then Reflux for 3 hours, take back the effluent, evap...

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PUM

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Abstract

The invention discloses a long-acting insecticide against cnaphalocrocis medinalis of paddy rice, wherein the raw materials comprise the following components in parts by weight: 80-100 parts of extract of traditional Chinese medicine, 0.5-1 part of abamectin, 1-2 parts of matrine, 1-2 parts of pyrethrin, 5-8 parts of penetrant, 10-15 parts of porous starch, and 1-3 parts of surfactant; wherein thetraditional Chinese medicine raw materials of the extract of traditional Chinese medicine include tea seed cake, flaccid knotweed herb, common andrographis herb, fructus forsythiae and tobacco; the long-acting insecticide has powerful ability of killing the cnaphalocrocis medinalis of the paddy rice and long period of insecticidal efficacy without generating drug resistance and residues of pesticides.

Description

technical field [0001] The invention relates to the technical field of insecticides, in particular to a long-acting insecticide against rice leaf rollers. Background technique [0002] Rice leaf roller, also known as scraper caterpillar, white leaf insect, bract leaf insect, etc., is one of the main pests in rice production areas in China, and is widely distributed in various rice areas. The damage at the seedling stage affects the normal growth of rice, or even dies; the damage from the tillering stage to the jointing stage, the tillering is reduced, the plant is shortened, and the growth period is delayed; after the booting period, especially the damage to the flag leaves from the heading to the full heading stage, the flowering and fruiting are affected, and the empty shell rate is increased. Thousand-grain weight decreased. [0003] At present, chemical agents are commonly used in the market to control the rice leaf roller, but the rice leaf roller has a short period of...

Claims

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Application Information

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IPC IPC(8): A01N65/42A01N53/02A01N43/90A01N41/08A01N43/46A01N25/30A01P7/04
CPCA01N25/30A01N41/08A01N43/46A01N43/90A01N53/00A01N65/00A01N65/42A01N65/385A01N65/30A01N65/28A01N65/08Y02A50/30
Inventor 薛必英
Owner 来安县薜必英家庭农场
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