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Compound insecticide comprising imidacloprid and pymetrozine

A technology of pymetrozine and imidacloprid, applied in the direction of insecticides, biocides, animal repellents, etc., can solve the problems of not being able to immediately reduce the number of pests in the field, and slow availability

Inactive Publication Date: 2014-03-26
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its unique mode of action, pymetrozine has no knock-down activity on pests. When used alone, although its long-lasting effect is long, its quick-acting effect is slow, and it cannot immediately reduce the amount of pests in the field. Regarding the compounding of imidacloprid and pymetrozine and Apps currently unreported

Method used

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  • Compound insecticide comprising imidacloprid and pymetrozine
  • Compound insecticide comprising imidacloprid and pymetrozine
  • Compound insecticide comprising imidacloprid and pymetrozine

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Experimental program
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Embodiment 1

[0017] 1. Source of insects to be tested

[0018] In August 2010, brown planthoppers collected from the experimental field of the China Rice Research Institute in Hangzhou, Zhejiang Province were subcultured with TN1 (Taichung No. 1) rice seedlings without any pesticides in the room. The humidity is 70% to 80%, and the light condition is 16 / 8h (L / D).

[0019] 2. Drugs to be tested

[0020] 97.0% imidacloprid technical was provided by East China University of Science and Technology; 97.2% pymetrozine was provided by Nanjing Drug Control Institute.

[0021] The imidacloprid preparation is a 25% wettable powder, provided by Zhejiang Hisun Chemical Co., Ltd.; the pymetrozine preparation is a 25% wettable powder, provided by Jiangsu Anbang Electrochemical Co., Ltd., for field efficacy experiments.

[0022] 3. Drug preparation

[0023] Dissolve the original drug of imidacloprid or pymetrozine in DMF, and make 1500 mg / L mother liquid respectively, and mix the prepared imidacloprid...

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Abstract

The invention relates to a pesticide compound, and particularly relates to a compound insecticide comprising imidacloprid and pymetrozine. The compound insecticide is characterized in that the weight ratio of imidacloprid to pymetrozine is 1:0.67 to 1:24. Through laboratory bioassays, two compounding proportions with obvious synergistic effects are obtained by screening, when content ratio of imidacloprid to pymetrozine is 3:2 and 1:3, the cotoxicity coefficients thereof are respectively 410.38 and 616.17, and a high level synergistic effect is shown. The compound insecticide is reasonable in ratio, has strong virulence on brown planthopper and other hemiptera insects, is high in cotoxicity coefficient, has a strong synergistic effect, and is a high-efficiency low-toxicity compound agent.

Description

technical field [0001] The invention relates to a pesticide compound, in particular to a compound pesticide containing imidacloprid and pymetrozine. Background technique [0002] Imidacloprid, 1-(6-chloro-3-pyridylmethyl)-N-nitroimidazol-2-ylideneamine, jointly developed by German Bayer AG and Japan Special Agricultural Chemicals Co., Ltd. in the late 1980s, 1991 Start to market. Imidacloprid is the fastest growing neonicotinoid insecticide in recent years, and it has been used on more than 60 kinds of crops and livestock in more than 80 countries and regions. Imidacloprid is a new type of ultra-efficient systemic insecticide, which can effectively control a variety of pests and has a wide spectrum of insecticidal properties. It is especially effective against sucking pests such as planthoppers, whiteflies, and aphids. Its mechanism of action is to selectively act on the nicotinic acetylcholine receptors in the central nervous system of insects, destroying the normal condu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N51/00A01P7/04A01N43/707
Inventor 刘泽文张懿熙丁志平杨保军
Owner NANJING AGRICULTURAL UNIVERSITY