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Environmental friendly biological pesticide and preparation method thereof

An environment-friendly, biopesticide technology, applied in botany equipment and methods, chemicals for biological control, biocides, etc., can solve the problem that Jatropha toxin has not been effectively utilized, and achieve beneficial Effects of environmental protection and consumption reduction

Inactive Publication Date: 2009-07-08
XISHUANGBANNA TROPICAL BOTANICAL GARDEN CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the technical bottleneck of large-scale industrial production of Jatropha toxin, Jatropha toxin has not been effectively utilized.

Method used

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  • Environmental friendly biological pesticide and preparation method thereof
  • Environmental friendly biological pesticide and preparation method thereof
  • Environmental friendly biological pesticide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The Jatropha toxin aqueous solution is subjected to isoelectric point salting out and membrane separation and desalination, concentrated to a mass percentage concentration of 25%, and freeze-spray-dried at -5°C to obtain Jatropha toxin powder. 60 parts of jatropha toxin powder, 30 parts of acephate and 10 parts of alkyl aryl sulfonate and its formaldehyde condensate are formulated into a wettable powder.

Embodiment 2

[0030] The Jatropha toxin aqueous solution is subjected to isoelectric point salting out and membrane separation and desalination, concentrated to a mass percentage concentration of 30%, and freeze-spray-dried at -8°C to obtain Jatropha toxin powder. 70 parts of jatropha toxin powder, 25 parts of acephate and 5 parts of alkylphenol polyoxyethylene ether formaldehyde condensate were formulated into a wettable powder.

Embodiment 3

[0032] The Jatropha toxin aqueous solution is subjected to isoelectric point salting out and membrane separation and desalination, concentrated to a mass percentage concentration of 35%, and freeze-spray-dried at -6°C to obtain Jatropha toxin powder. 65 parts of jatropha toxin powder, 25 parts of acephate, 5 parts of alkyl aryl sulfonate and its formaldehyde condensate, and 5 parts of alkylphenol polyoxyethylene ether formaldehyde condensate are formulated into a wettable powder.

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Abstract

The invention discloses an environment-friendly biological pesticide and a preparation method thereof. The biological pesticide is formed by mixing the curcin of the jatropha curcas after being sprayed, refrigerated and dried and the acephate. For the convenient use, wettable powder and an oil emulsion agent can be prepared by further adopting the conventional technology. The product has low toxicity and low residual, and is safe to the human, the livestock, the fish and the agricultural crops; the use of the biological pesticide can obviously reduce the use level of the chemical pesticide, and is favorable for the environmental protection; and the biological pesticide can be used for the pest control for rice, melons and fruits and vegetables. The invention has the advantages that the preparation method is simple and convenient, the cost is low, and the property of the curcin of the jatropha curcas can be kept to be stable by adopting the spraying, the refrigeration and the drying technologies.

Description

technical field [0001] The invention belongs to the technical field of biopesticides, and in particular relates to an environment-friendly biopesticide prepared from jatropha toxin as a main raw material. At the same time, the invention also relates to a preparation method of the biological pesticide. Background technique [0002] With the strengthening of people's awareness of environmental protection and health, it has become a consensus to choose plant-derived insecticides and fungicides that are easily degradable, low-residue, and safe for crops instead of organic chemicals. For this reason, the development and application of botanical pesticides has become a research and development hotspot in various countries. [0003] Jatropha toxin is directly extracted from Jatropha seeds. According to relevant studies, Jatropha toxin has a high killing ability against cabbage caterpillar, and has a certain inhibitory effect on Escherichia coli. It also has a good inhibitory eff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/18A01N57/04A01P7/00A01P3/00
Inventor 邓欣方真张绍志刘云虎
Owner XISHUANGBANNA TROPICAL BOTANICAL GARDEN CHINESE ACAD OF SCI
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