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Bio-pesticide for preventing and treating rice diseases and preparation method of bio-pesticide

A technology for biological pesticides and rice diseases, applied in the fields of botanical equipment and methods, chemicals for biological control, biocides, etc. , good disease prevention effect, the effect of maintaining the ecological environment

Inactive Publication Date: 2014-10-08
李先干
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chemical control has the advantages of economy, high efficiency, convenience and rapidity, and it is the most important control method during the period of disease epidemic or loss of variety resistance. However, chemical control not only pollutes the environment, but also makes the residual pesticide components in rice too high. Cause harm to the human body, increase the probability of human disease, and even cause the immunity of various functions of the human body to decline

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: Get 400g Asarum, 250g Cnidium Fructus, pulverize through micro-pulverizer, cross 100 mesh sieves, add 95% ethanol 550ml, pour out ethanol after soaking 6h at room temperature, carry out so repeatedly 3 times, merge 3 times For the extract, about 230ml of the extract was obtained, and then concentrated in a 60°C water bath to 50ml, and the ethanol was completely volatilized for later use.

Embodiment 2

[0021] Embodiment 2: Get 500g Asarum, 200g Cnidium Fructus, pulverize through micro pulverizer, cross 100 mesh sieves, add 95% ethanol 500ml, pour out ethanol after soaking 6h at room temperature, carry out so repeatedly 3 times, merge 3 times For the extract, about 200ml of the extract was obtained, and then concentrated in a 60°C water bath to 50ml, and the ethanol was completely volatilized for later use.

Embodiment 3

[0022] Embodiment 3: Get 300g Asarum, 300g Cnidium Fructus, pulverize through micro pulverizer, cross 100 mesh sieves, add 95% ethanol 600ml, pour out ethanol after soaking 6h at room temperature, carry out so repeatedly 3 times, merge 3 times For the extract, about 250ml of the extract was obtained, and then concentrated in a 60°C water bath to 50ml, and the ethanol was completely volatilized for later use.

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Abstract

The invention discloses a bio-pesticide for preventing and treating rice diseases and a preparation method of the bio-pesticide. Currently, food safety is globally concerned and safety of a source is the key to food safety, so that preparation of a pesticide which can safely, effectively and conveniently prevent and treat spike neck blast is an important subject in the technical field of the pesticide. The bio-pesticide disclosed by the invention is prepared from Chinese herbal medicines including herb of manchurian wildginger and common cnidium fruit; a field trial shows that the bio-pesticide has the characteristics of good disease prevention effect, safety and environmental friendliness, small possibility of generating pesticide resistance and the like, and an application prospect is wide.

Description

technical field [0001] The invention belongs to the technical field of pesticide production, and relates to a biological pesticide, in particular to a biological pesticide for preventing and treating panicle-neck rice blast. Background technique [0002] Rice blast, also known as rice fever, fire blast, and kowtow blast, is a worldwide fungal disease that occurs in almost all rice cultivation areas in my country. At present, the control measures of rice blast mainly include selection and breeding of resistant varieties, chemical control and cultivation management. Most of the disease-resistant varieties are vertically resistant varieties based on the "gene-to-gene" theory, and are prone to lose disease resistance. Chemical control has the advantages of economy, high efficiency, convenience and rapidity, and it is the most important control method during the period of disease epidemic or loss of variety resistance. However, chemical control not only pollutes the environment,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/10A01P3/00C05G3/00
Inventor 任重远
Owner 李先干
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