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Auriculate swallowwort root extract and new use thereof

A technology of psoriasis and extract, which is applied in application, biocide, animal repellent, etc., can solve the problem of large genetic variation of Botrytis cinerea

Inactive Publication Date: 2009-04-29
BEIJING UNIV OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since no material or variety resistant to gray mold has been found in crop germplasm resources, the current production mainly relies on chemical control to control its damage. However, due to the large genetic variation and strong adaptability of gray mold, several types of commonly used chemical Pesticides have produced varying degrees of resistance to

Method used

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  • Auriculate swallowwort root extract and new use thereof
  • Auriculate swallowwort root extract and new use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: Pseudomonas extract and preparation method thereof

[0031] Weigh Pseudomonas powder, add sherwood oil of 5 times the weight of the dry powder, extract 3 times at room temperature respectively, each time for 4 days, concentrate under reduced pressure, combine to obtain petroleum ether extract, the above-mentioned Pseudomonas extract can be prepared by conventional methods into fungicides.

Embodiment 2

[0032] Embodiment 2: Pseudomonas extract and preparation method thereof

[0033] Weigh the Psoriasis powder, add chloroform of 4 times the weight of the dry powder, extract 4 times at room temperature respectively, each time for 3 days, concentrate under reduced pressure, and combine to obtain the chloroform extract. The above-mentioned Psoriasis extract can be prepared by conventional methods for sterilization agent.

Embodiment 3

[0034] Embodiment 3: Pseudomonas extract and preparation method thereof

[0035] Weigh the Psoriasis powder, add petroleum ether 7 times the weight of the dry powder, extract twice at room temperature, 5 days each time, concentrate under reduced pressure, combine to obtain the methanol extract, the above-mentioned Psoriasis extract can be prepared by conventional methods fungicide.

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PUM

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Abstract

The invention discloses a cusouta auriclatum extract and preparation method and novel application thereof. The preparation method is as follows: weigh cusouta auriclatum powder, add petroleum ether with the weight 4-8 times of that of the cusouta auriclatum powder, leaching for 2-4 times at room temperature and 3-5 days for each time, carry out vacuum concentration and merging, get the petroleum ether extract at last. The invention has remarkable inhibiting effect on tomato botrytis cintrea.

Description

technical field [0001] The invention relates to a plant extract and a preparation method thereof, in particular to a bovine extract, a preparation method and a new application thereof. Background technique [0002] The widespread use of chemical pesticides has played a huge role in ensuring high and stable crop yields. However, the long-term use of traditional chemical pesticides leads to the resistance of pests, forcing people to increase the dosage of pesticides, causing more and more serious environmental problems. It is more and more urgent to seek and develop new pesticides that are safe for human health and ecological environment. Botanical pesticides are new types of pesticides that are directly or indirectly processed and synthesized by extracting insecticidal or antibacterial active substances from plants. Since this type of pesticide has the advantages of fast biodegradation in the environment, low toxicity to humans, animals and non-target organisms, and resistan...

Claims

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Application Information

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IPC IPC(8): A01N65/00A01P3/00
Inventor 王有年刘素琪师光禄赵磊杜鹃
Owner BEIJING UNIV OF AGRI
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