Method for extracting ricin-containing insecticidal active substance and combined application with pesticides

An insecticidal composition and technology for insecticides, which are applied in the directions of insecticides, botanical equipment and methods, applications, etc., can solve problems such as differences in biological activity, restrict the application of castor oil extracts, etc. The effect of reducing the amount of pesticide application and facilitating the popularization and application

Pending Publication Date: 2018-09-21
INST OF COTTON RES CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the different extraction methods of castor extract, the biological activity of castor extract is also quite different, which also limits the application of castor extract in the field of plant protection.

Method used

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  • Method for extracting ricin-containing insecticidal active substance and combined application with pesticides
  • Method for extracting ricin-containing insecticidal active substance and combined application with pesticides
  • Method for extracting ricin-containing insecticidal active substance and combined application with pesticides

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The extraction of embodiment 1 castor plant insecticide

[0028]After 500g of castor plant old leaves are dried, pulverized, and crossed through a 100-mesh fine sieve, the castor plant old leaf dry powder is soaked in 50% ethanol solution according to the mass ratio of castor plant dry powder and ethanol solution mass ratio of 1:10 In 50°C water bath, soak for 8 hours, then ultrasonically shake for 20 minutes in a 50°C water bath, and obtain the filtrate for the first time after filtration; soak the filter residue obtained after the first filtration in 50% mass concentration of castor plant tissue In the ethanol aqueous solution with a dry powder mass ratio of 1:10, ultrasonically oscillate in a water bath at 50°C for 20 minutes, and obtain the second filtrate after filtration; combine the two filtrates to obtain an extract containing castor insecticides, and rotate in a water bath at 60°C Evaporating and concentrating the above-mentioned extract containing castor bean ...

Embodiment 2

[0031] The extraction of embodiment 2 castor plant insecticidal substances

[0032] After 300g of castor bean shells are dried, pulverized, and crossed through a 150-mesh fine sieve, the castor-oil old leaf dry powder is soaked in a mass concentration of 70% ethanol-water solution according to the ratio of castor-oil tissue dry powder and ethanol-water solution mass ratio of 1:15 In the process, soak for 7 hours in a water bath at 60°C, then oscillate ultrasonically for 15 minutes in a water bath at 60°C, and obtain the filtrate for the first time after filtration; soak the filter residue obtained after the first filtration in 70% castor tissue In the ethanol aqueous solution with a mass ratio of dry powder of 1:15, ultrasonically oscillate in a water bath at 60°C for 15 minutes, and obtain the second filtrate after filtration; combine the two filtrates to obtain an extract containing castor bean insecticide, and rotate it in a water bath at 70°C Evaporating and concentrating ...

Embodiment 3

[0035] The extraction of embodiment 3 castor plant insecticidal substances

[0036] After 600g of castor bean cake is dried, pulverized, and passed through an 80-mesh fine sieve, the old castor leaf dry powder is soaked in ethanol with a mass concentration of 60% according to the ratio of castor tissue dry powder and ethanol aqueous solution mass ratio of 1:20 In the aqueous solution, soak in a water bath at 60°C for 8 hours, then oscillate ultrasonically in a water bath at 60°C for 15 minutes, and obtain the filtrate for the first time after filtration; soak the filter residue obtained after the first filtration in castor oil with a mass concentration of 60% In the ethanol aqueous solution with the mass ratio of dry tissue powder of 1:20, ultrasonically vibrate for 15 minutes in a water bath at 60°C, and obtain the second filtrate after filtration; combine the two filtrates to obtain an extract containing castor bean insecticides, and in a water bath at 70°C Concentrate the a...

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Abstract

The invention belongs to the field of plant protection, and relates to a pesticide composition and an application field. The invention relates to a combination of ricin insecticides and conventional insecticides, mainly used for the control of harmful arthropods in crops. The invention firstly discloses a method for extracting ricin-containing insecticidal active substance, and secondly, disclosesa ricin insecticidal substance and conventional insecticide composition and application. The ethanol solution is combined with the ultrasonic extraction to obtain the ricin insecticidal substance, and the obtained ricin insecticidal substance has a remarkable synergistic effect on a plurality of insecticides; the composition disclosed has the advantages of simple using method, convenient popularization and application, and good control effect on various target arthropods such as the cotton leaves, the spodoptera litura, the spodoptera litura, the diamondback moth, the worm, the whitefly, thealma and the leaves, and the like; the application amount of the pesticide can be reduced to a great extent, and the resistance development of the target arthropod to the pesticide can be delayed, meeting the requirements of current pesticide reduction and environmental protection.

Description

technical field [0001] The invention belongs to the field of plant protection, and relates to the field of pesticide composition and its application, in particular to an extraction method of an insecticidal active substance containing castor and its combined application with an insecticide. Background technique [0002] For the control of modern agricultural pests and diseases, although there are many emerging and environmentally friendly technologies, chemical pesticides still play a pivotal role due to factors such as cost and control effect. However, the existing pesticides also have shortcomings such as large usage, easy resistance and serious environmental pollution. These shortcomings also limit the development of the pesticide industry and agricultural production. Plant secondary metabolites can not only provide leading compounds with excellent activity for the synthesis and screening of novel pesticide molecules, but also can be directly developed into environmentall...

Claims

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Application Information

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IPC IPC(8): A01N65/18A01N57/16A01N47/24A01N53/08A01N51/00A01N43/90A01P7/02A01P7/04
CPCA01N43/90A01N47/24A01N51/00A01N57/16A01N65/18A01N65/00A01N25/30A01N57/20A01N57/12A01N57/14A01N47/22A01N47/18A01N43/40A01N47/40A01N43/22Y02A50/30
Inventor 张开心雒珺瑜崔金杰朱香镇姬继超王丽张帅张利娟王春义
Owner INST OF COTTON RES CHINESE ACAD OF AGRI SCI
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