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Insecticide composition and its processing method

A processing method and composition technology, applied in the direction of botany equipment and methods, biocide, biocide, etc., can solve the problems of high extraction and manufacturing costs, difficult industrial production, etc., and achieve safe use, simple processing method, good control effect

Active Publication Date: 2008-08-20
YIFAN AGRI CHEM PLANT ZHEJIANG PROV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have found that camptothecin and its derivatives have insecticidal activity, but because camptothecin and its derivatives are insoluble in water and difficult to dissolve in other common solvents for pesticides, their extraction and manufacturing costs are very high as insecticides. Difficult to industrialize production

Method used

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  • Insecticide composition and its processing method
  • Insecticide composition and its processing method
  • Insecticide composition and its processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Drop into 400 kilograms of concentration in reaction kettle or stirring tank and be 0.4% sodium hydroxide aqueous solution, slowly add 0.5kg purity and be 80% camptothecin, be heated to 35 ℃ and constantly stir reaction (ring-opening salt formation reaction), After completely dissolving, add 20 kilograms of sodium dodecylbenzenesulfonate and stir evenly to obtain the final product.

Embodiment 2

[0027] Drop into 400 kilograms of concentrations in reaction kettle or stirring tank and be the potassium hydroxide aqueous solution of 0.2%, slowly add 0.2 kilograms of purity to be 80% 10-hydroxycamptothecin, be heated to 40 ℃ and constantly stir reaction (ring-opening salt formation reaction), after completely dissolving, add 10 kg of NP-10 and stir evenly to obtain the final product.

Embodiment 3

[0029] Drop into 400 kilograms of concentrations in reaction kettle or stirring tank and be the potassium hydroxide aqueous solution of 0.4%, slowly add 0.4 kilograms of purity be 80% camptothecin and 0.1 kilogram of purity be 80% 10-hydroxycamptothecin, be heated to 40°C and constant stirring reaction (ring-opening salt formation reaction), after complete dissolution, then add 30 kg of sodium dodecylbenzene sulfate and stir evenly to obtain the final product.

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Abstract

The invention relates to a composition of pesticide and the manufacturing method, belonging to technical field of botanical pesticide and the manufacturing method, which is characterized in that the composition comprises an active constituent with 0.1 to 2.0 percent of the total weight. The constituent is single compound or the mixture of compounds which accords to the general formula I, wherein, the general formula I is that R1 is Na and R2 is H or OH. The composition of pesticide adopts the ring opening camptothecin salt as the insecticidal active compound, wherein, the camptothecin salt is high in activity and can be dissolved in the water. The method in the invention has the advantages of simplifying the manufacturing method, lowering the manufacture cost of pesticide and reducing the environmental pollution by removing the organic solvent. The composition of pesticide obtained can not only kill the rice fulgorid, the plant louse, the Chilo suppressalis, the whitefly, the tea leafhopper, the diamondback moth and the cabbage caterpillar, but also provide the nutritional ingredient for the plant by sylvite and amine salt to accelerate the growth of the plant. The invention also has the advantages of safe use and good reliability.

Description

technical field [0001] The invention belongs to the technical field of botanical pesticides and manufacturing methods thereof, and specifically relates to an insecticide composition and a processing method thereof. Background technique [0002] Camptothecin (CPT) is a natural cytotoxic alkaloid, which was first isolated from the bark and bark of Camptotheca acuminata introduced from my country by Wall et al. in 1966. Studies have found that camptothecin and its derivatives have insecticidal activity, but because camptothecin and its derivatives are insoluble in water and difficult to dissolve in other common solvents for pesticides, their extraction and manufacturing costs are very high as insecticides. Difficult to industrialized production. Contents of the invention [0003] In view of the above-mentioned problems existing in the prior art, the object of the present invention is to design and provide a technical scheme of an insecticide composition and its processing me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N65/00A01P7/00
CPCA01N43/90A01N25/02
Inventor 马建义
Owner YIFAN AGRI CHEM PLANT ZHEJIANG PROV
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