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Phyllotreta striolata feeding deterrent and preparation method thereof

A flea beetle and inhibitor technology, applied in botany equipment and methods, insecticides, biocides, etc., can solve problems such as unfavorable storage, delay the development of drug resistance, have a significant inhibitory effect, and reduce drug resistance Effect

Active Publication Date: 2010-07-28
广州瑞丰生物科技有限公司
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Problems solved by technology

[0005] A Chinese invention patent application with application number 200810026195.1 discloses a flea beetle feeding inhibitor, which is made of lantana methanol extract, chloroform extract and isolated total petrene to make flea beetle Feed inhibitor, the inhibitor is characterized by simple preparation, but not conducive to storage

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Determination of the inhibitory effect of lantana extract emulsifiable oil preparation and its mixture with rotenone emulsifiable oil on the feeding of flea beetle adults, the method is as follows:

[0024] Take 12.5% ​​lantana extract EC and dilute with water to 300 times liquid, and dilute the mixture of lantana extract EC and rotenone EC to 800 times liquid, and set aside. Take healthy cabbage leaves with similar growth, and spray each drug solution evenly on the front and back of the leaves. With spraying clear water as the control, 4 repetitions were set up. After the medicinal solution was naturally dried, the treated leaves and the control leaves were placed in self-made straight cages (18 cm in height, 9 cm in diameter at the bottom and bottom), and 1 piece per cage was inserted into 10 flea beetle adults who had been hungry for 24 hours. . 24 hours after treatment, the feeding area of ​​flea beetle adults was investigated, and the feeding inhibition rate was ...

Embodiment 2

[0028] Take 12.5% ​​lantana EC and dilute it with water to 200, 400, 600, 800 and 1000 times, the mixture of lantana extract EC and rotenone EC and 7.5% rotenone EC are diluted with water to 400, 800, 1200 times respectively , 1600 and 2000 times of liquid, they are tested respectively by the method of embodiment 1 to the feeding inhibition of Flea beetle flavus, and the concentration (Antifeedant Concentration of 50%, AFC 50 ), and calculate the co-toxicity coefficient (Co-toxicity coefficient, CTC) of the mixture. CTC calculation refers to the method of Zhao Shanhuan (Zhao Shanhuan, Phytochemical Protection, Beijing: China Agricultural Press. 2000.), with AFC 50 instead of LC 50 ,details as follows:

[0029] AFC of co-toxicity coefficient CTC=A 50 AFC of ×B 50 / M AFC 50 ×(P A AFC of ×A 50 +P B AFC of ×B 50 )

[0030] A is 12.5% ​​lantana emulsifiable concentrate; B is 7.5% rotenone emulsifiable concentrate; M is the compounding agent; P A and P B are the percenta...

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Abstract

The invention discloses a phyllotreta striolata feeding deterrent and a preparation method thereof. The phyllotreta striolata feeding deterrent of the invention is Lantana camara extract missible oil preparation which is composed of the following components in percentage by weight: 10-15% of Lantana camara extract, 10-20% of emulsifying agent and the balance organic solvent. The phyllotreta striolata feeding deterrent of the invention can also be the blending solvent of Lantana camara extract missible oil preparation and rotenone missible oil. The phyllotreta striolata feeding deterrent of the invention has obvious action and effect, can strongly inhibit phyllotreta striolata from feeding and lightens harm on brassicaceous vegetables by phyllotreta striolata. The phyllotreta striolata feeding deterrent of the invention has simple and easy preparation method, is convenient to store and has favorable application prospect.

Description

technical field [0001] The invention relates to the field of pest control in agriculture, in particular to a flea beetle feeding inhibitor and a preparation method thereof. Background technique [0002] The defense of plants can avoid the harm of pests through the production of chemical substances, or the specificity of their own shape and structure, and the adjustment of time and space for their own growth. The most important of these defense mechanisms is chemical defense, that is, plants produce chemical Substances to resist pest damage. Utilize the secondary compound produced by the non-host plant or the simulated synthetic compound to make the formulation suitable for application, that is, the plant protection agent (Pang Xiongfei, World Science and Technology Research and Development, 1999, 21 (2): 24-28; Pang Xiongfei et al., Acta Applied Ecology, 2000, 11(1): 108-110) to regulate insect feeding, growth and development, and establish a pest control system to achieve ...

Claims

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Application Information

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IPC IPC(8): A01N65/08A01N43/90A01N25/04A01P7/04
Inventor 张茂新田耀加凌冰曾玲董易之
Owner 广州瑞丰生物科技有限公司
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