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Plant-derived pesticide

A plant-derived pesticide and pesticide technology, applied in the field of plant-derived pesticides, can solve problems such as lack of utilization of diphtheria aconitum, loss of animal husbandry production, and endangering livestock health, and achieve the effects of less resistance to pesticides, low equipment requirements, and simple processing

Inactive Publication Date: 2016-01-20
姜蕾
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The excessive growth of poisonous leather represented by diphtheria aconitum not only seriously endangers the health of livestock but also crowds out the growth of forage grass, causing serious losses to animal husbandry production
At present, the prevention and control of Aconitum poisonous weeds mainly adopts manual excavation, and the most serious damage to Diphtheria Aconitum is not utilized.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Weigh 1009 diphtheria aconitum root powder and add 500m separately]. ,400m],300m195% ethanol cold immersion 3 times, 48 ​​hours each; combine the extracts, concentrate under reduced pressure to recover the ethanol, the resulting extract is dissolved in 2% hydrochloric acid; the acid water is degreased with petroleum ether and then alkalized with concentrated ammonia To pH 9-10, extract with chloroform several times, combine the extracts to recover chloroform to obtain a viscous alkaloid extract.

Embodiment 2

[0017] The alkaloid extract in Example 1 was naturally dried and used 100m1O. 1% Tween 80 aqueous solution was dissolved to obtain 19 / ml stock solution.

[0018] Antibacterial activity result

[0019] 1. Inhibition of fungal hyphae growth:

[0020] The test solution has a certain inhibitory effect on the mycelial growth of five pathogens: Pyricularia oryzae, Penicillium italy, Fusarium wilt of melon, Fusarium solani and Phytophthora cucumber, and the inhibition rate increases with time. Improved and sustained better results. At a concentration of 100m crucian carp nll, the inhibitory rate of the chemical solution to each pathogen was higher than 50%. After 7 days, the inhibitory rate to Cucumber Phytophthora spp. reached 87.72%, and the inhibitory rates to Pyricularia oryzae and Penicillium italy were respectively. It reached 70.18% and 69.68%. At a concentration of 4 mg / ml, the inhibition rate of each pathogen was also higher than 25% after 7 days, and the inhibition rate of mel...

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PUM

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Abstract

The present invention relates to a plant-derived pesticide and a preparation method thereof, wherein the plant-derived pesticide is obtained by processing the total alkaloid extracted from aconitum leucostomum vorosch root or stem, the total alkaloid, water and a surfactant are prepared into an aqueous emulsion, and the aqueous emulsion can be used after being diluted, provides good prevention and control effects on cotton aphids and pieris rapae linne larvae, and provides good treatment effects on plant pathogenic bacteria. According to the present invention, the plant-derived pesticide has characteristics of easily-available raw materials, simple processing, low cost, safety to environment, insecticidal effect, antimicrobial effect, blending with other pesticides, and the like, and is the plant-derived pesticide suitable for production of pollution-free agricultural products.

Description

Technical field [0001] The invention relates to a plant-derived pesticide, in particular to a plant-derived pesticide system with both antibacterial and insecticidal activities using diphtheria aconitum total alkaloid extract as a raw material. Background technique [0002] For many years, chemical pesticides have been widely used all over the world because of their high efficiency, quick-acting, cheap and convenient use, and they have a monopoly in plant protection. However, since the 1980s, as the public has paid more and more attention to health and environmental issues, chemical pesticides have been questioned because of their residues and environmental pollution. Plant-derived pesticides have become one of the more ideal alternative products. Plant-derived pesticides are the direct use or extraction of plant roots, stems, leaves, flowers, fruits, seeds, etc., or the use of secondary metabolites to produce active substances with insecticidal or bactericidal effects. At pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/32A01P3/00A01P7/04
Inventor 姜蕾
Owner 姜蕾
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