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Synergic composition of cantharidin and organic phosphorous insecticide

A technology of organophosphorus and composition, which is applied in the field of synergistic compound composition of cantharidin and organophosphorus insecticide, which can solve the problems of lack of natural resources, limited product development and utilization, etc.

Inactive Publication Date: 2006-04-26
杨凌农林科大昆虫资源研究发展中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Cantharidin is a natural monoterpenoid insect toxin that exists in insects such as Coleopera (Coleopera) and Meloidae (Meloidae). The natural resources are very scarce, so the development and utilization of its products are limited.

Method used

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  • Synergic composition of cantharidin and organic phosphorous insecticide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: synergistic compounding of cantharidin and chlorpyrifos

[0016] Select suitable solvent, emulsifier, prepare 1.0% cantharidin EC; The solvent is supplemented to 100%, that is, 12.0% cantharidin·chlorpyrifos emulsifiable concentrate is prepared. The toxicity of single and mixed agents of chlorpyrifos and cantharidin to Plutella xylostella was determined indoors by using the method of dipping insects and leaves. On this basis, the co-toxicity coefficient CTC value of the mixture was calculated by Sun Peiyun's method, and the specific measurement results are shown in Table 1.

[0017] It can be seen from the measurement data in Table 1 that the CTC value of the mixture of cantharidin and chlorpyrifos is 153.9891, which is greater than 120, indicating that the mixture of cantharidin and chlorpyrifos has a significant synergistic effect.

[0018] Drug name

Embodiment 2

[0019] Embodiment 2: synergistic compounding of cantharidin and phoxim

[0020] Select suitable solvent, emulsifier, prepare cantharidin and phoxim mixture, in the mixture, phoxim 17% (100%), cantharidin 1.0% (100%), emulsifier 10%, solvent supplemented to 100% , which is formulated into 18% cantharidin · phoxim EC. The indoor toxicity of phoxim and cantharidin single agent and mixed agent to diamondback moth was determined by the method of dipping insects and leaves, using the 3rd instar diamondback moth provided by the insect culture room of the pollution-free pesticide research service center of Northwest Agriculture and Forestry University as the test insect . On this basis, the co-toxicity coefficient CTC value of the mixture was calculated by Sun Peiyun's method, and the specific measurement results are shown in Table 1.

[0021] Drug name

[0022] It can be seen from the measurement data in Table 2 that the CTC value of the mixture of cantharidin and phoxim ...

Embodiment 3

[0023] Embodiment 3: synergistic compounding of cantharidin and triazophos

[0024] Select suitable solvent, emulsifier, cantharidin and triazophos mixture are formulated into microemulsion, contain triazophos 19% (100%) in the mixed agent microemulsion, cantharidin 1.0% (100%), emulsifier 18% %, solvent to make up 20%, deionized water to make up to 100%, adopt the microemulsion preparation method, that is to prepare 20.0% cantharidin · triazophos microemulsion. The indoor toxicity of triazophos and cantharidin single and mixed agents to Plutella xylostella was determined by using the method of dipping insects and leaves, using the 3rd instar diamondback moth provided by the insect culture room of the Pollution-free Pesticide Research Service Center of Northwest Agriculture and Forestry University as test insects . On this basis, the co-toxicity coefficient CTC value of the mixture was calculated by Sun Peiyun's method, and the specific measurement results are shown in Table ...

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Abstract

The invention discloses a synergic composition of cantharidin and organic phosphorous insecticide, which comprises (by weight ratio) the following raw materials, cantharidin 0.1-10.0%, organic phosphor insecticide 1-40.0%, and balancing pesticide adjuvant, the organic phosphor insecticide is one selected from chlorpyrifos, quintiofos, triazophos, phoxim, profenofos, acephate, and fenitrothion.

Description

technical field [0001] The invention relates to a synergistic composition of insecticides, in particular to a synergistic composite composition of cantharidin, an active insecticidal ingredient of animal origin, and organophosphorus insecticides. Background technique [0002] Cantharidin (Cantharidin, C 10 h 12 o 4 ) is a natural monoterpene insect toxin that exists in insects such as Coleopera (Coleopera) and Meloidae (Meloidae), and is a defensive substance in the cantharis. The chemical name of cantharidin is exo type, 1,2 cis-dimethyl, 3,6-oxo bridge hexahydrophthalic anhydride; the molecular weight is 196.2, and the structural formula is as follows: [0003] [0004] Cantharidin crystallizes as rhombic prisms in acetone, white needles in chloroform, and white bran flakes in ethanol. The melting point determined by capillary method is 215-216.8°C. Insoluble in cold water, hardly soluble in ether (1g / 700ml), solubility in chloroform, dichl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N57/12A01N43/90A01N57/28A01P7/04
Inventor 张雅林郑胜礼张兴
Owner 杨凌农林科大昆虫资源研究发展中心
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