A kind of veratrine plant source compound fungicide and its application

A technology of compound fungicide and veratrine, which is applied in the field of pesticides to achieve the effect of less resistance and easy degradation

Active Publication Date: 2018-12-11
BEIJING UNION UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above patent documents all combine veratrine with other active ingredients to prevent and control plant pests, while the technology of using veratrine for plant disease control and compounding with willow bark extract to apply to plant pathogenic bacteria has not been reported

Method used

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  • A kind of veratrine plant source compound fungicide and its application
  • A kind of veratrine plant source compound fungicide and its application
  • A kind of veratrine plant source compound fungicide and its application

Examples

Experimental program
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Effect test

Embodiment 1

[0030] 20kg of veratrum (Veratrum nigrum L.) rhizomes were purchased from Hebei Anguo Traditional Chinese Medicine Market, and the medicinal materials were crushed and sieved (16 mesh). The pulverized medicinal material was continuously extracted with 70% ethanol solvent under reflux for 6 hours, and then spray-dried. It is adsorbed and separated by D101 macroporous adsorption resin, and the 1-30% ethanol eluate is recovered and spray-dried, wherein the veratrine content is 2.0%.

[0031] Willow branch bark and root bark of VSalix babylonica were collected from willow trees felled in Beijing area, dried, and 20 kg was crushed and sieved (16 mesh). The pulverized medicinal material is continuously extracted with water for 4 hours, and then spray-dried to obtain the obtained product. 1g of the extract is equivalent to 10g of willow bark.

Embodiment 2

[0033] Preparation of 0.1% (based on veratrine content, the same below) veratrine + willow bark extract wettable powder

[0034] Each raw material is weighed by weight ratio, wherein, veratrine (2.0% raw material) 50g, willow bark extract 100g, tempeh polysaccharide 20g, calcium lignosulfonate 150g, calcium dodecylbenzenesulfonate 150g, activated clay 530g. The preparation process of the above fungicide wettable powder is as follows: accurately weigh the original drug of veratrine and willow bark extract, absorb the weighed veratrine and willow bark extract with carrier activated clay, mix evenly, and then weigh the Soybean polysaccharides, calcium dodecylbenzenesulfonate, and calcium lignosulfonate were added and mixed evenly, pulverized by an ultrafine pulverizer for 35 minutes, and passed through a 300-mesh sieve to obtain 0.1% veratrine + willow bark extract wettable powder .

Embodiment 3

[0036] Preparation of 0.2% veratrine + willow bark extract wettable powder

[0037] Each raw material is weighed by weight ratio, veratrine (2% raw material) 100g, willow bark extract 110g, humic acid 80g, calcium lignosulfonate 100g, calcium dodecylbenzenesulfonate 100g, bentonite 510g. The preparation process of the above fungicide wettable powder is as follows: accurately weigh the original drug of veratrine and willow bark extract, absorb the weighed veratrine and willow bark extract with carrier bentonite, mix evenly, and then weigh the weighed veratrine and willow bark extract. Add humic acid, sodium dodecylbenzenesulfonate, and calcium lignosulfonate, mix well, pulverize with a superfine pulverizer for 30 minutes, and pass through a 300-mesh sieve to obtain 0.2% veratrine + willow bark extract. powder.

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Abstract

The invention discloses a veratrine plant source compound bactericide and application thereof. The veratrine plant source compound bactericide is prepared from the following raw materials in percentage by weight: 0.1 to 10 percent of veratrine, 1 to 20 percent of a willow bark extract and the balance of auxiliaries, wherein the veratrine is a total veratrine-containing pure product, a mixture or a veratrum plant extract. The veratrine plant source compound bactericide is microemulsion, water aqua or wettable powder. The bactericide disclosed by the invention does not contain any chemical pesticidal components, easily degrades in an environment, and is safe to human, livestock and the environment; pathogenic bacteria cannot resist the veratrine plant source compound bactericide; meanwhile, the veratrine plant source compound bactericide has the advantages of high stability, high efficiency and low cost. The bactericide can be used for preventing and treating one or more of diseases of crops, such as brown rot, gray mold, soft rot, pear scab, bacterial shot hole, downy mildew, phytophthora root rot, powdery mildew, late blight and dry rot, and also used for preventing and treating other plant diseases.

Description

technical field [0001] The invention relates to a veratrine plant-source compound fungicide and an application thereof, belonging to the technical field of pesticides. Background technique [0002] Brown rot, gray mold, soft rot, scab, bacterial perforator, downy mildew, phytophthora, powdery mildew, late blight, dry rot, etc. are the main diseases on fruit trees and vegetables. wide and difficult to control. At present, the prevention and control of these diseases mainly rely on chemical fungicides. However, long-term use of a large number of chemical fungicides leads to drug resistance, environmental pollution, and pesticide residues, which seriously endanger human health. The Ministry of Agriculture's "Action Plan for Zero Growth in Pesticide Use by 2020" puts forward strict requirements for plant protection. Biopesticide (technology) is pollution-free, green and environmentally friendly, and has become an important way and research hotspot for the creation of new fungi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/42A01N25/02A01N25/04A01N25/14A01P1/00A01P3/00
CPCA01N25/02A01N25/04A01N25/14A01N65/00A01N65/42A01N2300/00Y02A50/30
Inventor 葛喜珍薛科科李映田平芳缪刚
Owner BEIJING UNION UNIVERSITY
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