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A nuisance-free botanical insecticides preparation process

The technology of a plant insecticide and a production method, which is applied in the production field of biological pesticides, can solve the problems of reduced nutritional value, indigestible protein and the like, and achieves the effects of easy decomposition, strong practicability and low cost

Inactive Publication Date: 2007-08-01
高洪生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many plants contain tannin and gossypol, which can make protein difficult to digest and reduce the nutritional value

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0013] The following examples illustrate the present invention in detail.

[0014] First, prepare pine or camphor leaf powder. Pine or camphor leaves contain a lot of water. The existence of water is unfavorable to the next step of extraction. It must be dried or dried first (the drying temperature should not be too high to avoid drying. burnt, causing the active ingredient to be destroyed). Then use a pulverizer or a stone mill to pulverize, and the pulverization fineness can reach 50 meshes.

[0015] Take 1 part of pine or camphor tree leaf powder, reflux in a water bath with 40 parts of 90% industrial alcohol for 1.5 hours, recover the filtrate alcohol after filtration, and reflux the residue with 13 parts of 80% industrial alcohol for 10 hours, and then filter Recover the filtrate, place it at 4°C for 12 hours to concentrate, weigh the weight and add water in a ratio of 1:2, freeze at -30°C, and freeze-dry to obtain concentrated pine or camphor leaf extract powder;

[00...

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PUM

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Abstract

A method for manufacturing botanical insecticide relates to manufacturing method of biological pesticide. The method comprises the steps of: oven-drying or open-air-drying pine or camphortree leaves, pulverizing to 50mesh, taking pine or camphortree leaves powder 1 part, backstreaming with 90% alcohol 40 parts in water bath for 1.5h, filtrating, recovering alcohol, backstreaming the residue with 80% alcohol 13 parts for 10h, filtrating, recovering filtrate, standing at 4DEG C for 12, condensing, adding water at a ratio of 1:2, freeze-drying to obtain pine or camphortree leaves extract condensed powder, mixing the condensed powder 40wt.% with tomatine 20 wt.%, allethrin 15wt.%, glucosinolate 15wt.%, and cottonseed phenol 10wt.% to obtain the insecticide. Adding water 500-1000 times the weight of the insecticide into the insecticide can be used for curing plant diseases and insect pests such as aphis and bollworm.

Description

technical field [0001] The invention relates to the production of biological pesticides, in particular to a production method of biological pollution-free plant pesticides. Background technique [0002] In the evolution of nature, many plants have various resistance defenses against insects, such as nicotine produced by tobacco plants and glucosinolate (a toxic allyl isocyanate compound) produced by cruciferous plants. Insect tissues can cause serious harm and are highly toxic to most insects; cyanogenic glycosides and enzymes that can cause cyanogenic glycosides to release cyanide can be produced in the leaves of Trifolium trifolium, which are very toxic; Herbethrin produced by herbicides has been widely used as non-polluting agricultural insecticides. These toxic substances will have a direct killing effect on feeding insects. The stems and leaves of Cucurbitaceae plants often contain a large amount of bitter tetracyclic triterpenoids, namely cucurbitacin, and most insect...

Claims

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Application Information

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IPC IPC(8): A01N65/00A01P7/04A01N53/02A01N65/24A01N65/06
CPCY02A50/30
Inventor 高洪日高洪生
Owner 高洪生
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