Biological pesticide for pollution-free vegetables and its manufacturing method

A bio-pesticide, pollution-free technology, applied in the field of pesticides, can solve problems such as harmful to human health and liquid residues

Inactive Publication Date: 2008-06-11
孙克来
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, pesticides are generally composed of compounds, and the liquid residues are seri

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Prepare bio-pesticides for pollution-free vegetables according to the preparation method of the following pesticides:

[0016] Step 1: Cut the harvested whole plant of Tripterygium wilfordii (leaves, stems and roots, etc.) into pieces, dry them in the sun, crush them to 60 meshes, and use water for aseptic extraction in a closed tank (water temperature less than 49°C, extraction time greater than 50 hours), and constantly rotate the airtight tank (30-180 times / minute), after filtering, purifying and concentrating, the Tripterygium wilfordii extract is obtained.

[0017] Step 2: add a certain amount of dry powder of Rhizoma officinalis to 10 times the amount of absolute ethanol, soak at room temperature for 24 hours, stir in a water bath at 45 degrees for 8 hours, filter and concentrate under reduced pressure to obtain the ethanol extract of Rhizoma saponifolium.

[0018] The third step: mixing: the above-mentioned raw materials are uniformly mixed according to the weigh...

Embodiment 2

[0024] Prepare biological pesticides for pollution-free vegetables according to the method described in Example 1, the weight ratio of raw materials is: Tripterygium wilfordii extract 20% Herba chinensis extract 10

[0025] Theaculin 10 Ethyl acetate 55

[0026] Calcium dodecylbenzenesulfonate 20.

Embodiment 3

[0028] Prepare biopesticides for pollution-free vegetables according to the method described in Example 1, the weight ratio of raw materials is: Tripterygium wilfordii extract 30% Herba chinensis extract 20%

[0029] Theacitin 5 Isopropanol 60

[0030] Octylphenol ethoxylates 15.

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PUM

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Abstract

The invention relates to a pesticide, in particular to a vegetable biological pesticide without public harm, which is prepared by raw materials with following weight ratios, such as tripterygium wilfordii extract 5-70, graceful Jessamine extract 5-10, tea withered endothelin1-30, dissolvent 50-75 and emulsifying agent 10-20. The tripterygium wilfordii of the invention is Chinese folk traditional insecticidal medicine, disintegrating matters or extracts have strong stomach toxicity to various agroforestrial fruit-trees pests such as cabbage caterpillars and diamondback moths and the like, which can cause aphagia play anesthesia function, wherein the main components which function are tripterygium wilfordii fixed alkali and tripterygium wilfordii lactone alcohol. The graceful Jessamine contains diterpenes diterpenoids, flavonoids, lignans, coumarin and other compounds such as phenyl propanoid and the like, and the alcohol extract of graceful Jessamine roots has excellent insecticidal activity to cabbage caterpillar.

Description

Technical field: [0001] The present invention relates to pesticides, especially pesticides for vegetables. Background technique: [0002] At present, pesticides are generally composed of chemical compounds, and the liquid residues are serious, especially in vegetables. Eating vegetables with pesticide residues is harmful to human health. The root bark of Tripterygium wilfordii is a traditional insecticide in my country. The crushed product or extract has strong stomach toxicity to various agricultural and forestry fruit tree pests such as cabbage caterpillar and diamondback moth, and can cause food refusal or anesthesia. widely used pesticides. Heartbroken grass, a plant belonging to the genus Chamaejasma, is an important poisonous plant distributed on the grasslands of the Qinghai-Tibet Plateau. It poses a threat to the development of animal husbandry and grassland protection, and is a poisonous and harmful grassland plant that needs to be controlled. But heartbroken grass...

Claims

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Application Information

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IPC IPC(8): A01N65/00A01N25/30
Inventor 孙克来
Owner 孙克来
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