Biological pesticide and its production process

Abstract

A biological pesticide for preventing and controlling plant fungus diseases and virus diseases is prepared by using rhubarb 60-140 weight portions, blackberrylily rhizome 100-140 weight portions, bark of himalayan coralbean 50-90 weight portions, and natural plant tannin 30-70 weight portions and through crushing into 40 mesh over fine powder, mixing, twice water boiling and mixing the boiled liquid. It has specific effect and high specificity on preventing and controlling plant fungus diseases and virus diseases.

Description

technical field [0001] The invention relates to a biopesticide for preventing and treating plant fungal diseases and viral diseases and a production method of the biopesticide. Background technique [0002] my country is rich in medicinal plant resources. The book "China's Soil Pesticides" published in 1959 recorded 220 kinds of plant pesticides, belonging to 86 families, with natural active substances that kill insects and sterilize bacteria. The water extract has a 90% inhibition rate on the germination of potato late blight spores, and the 15-fold boiled liquid of Artemisia annua has a 50-60% control effect on wheat leaf rust. These single plants are used as pesticide fungicides, not only the liquid used The high concentration consumes Chinese herbal medicine resources, increases the cost of preventing and controlling crop diseases, and the drug effect is not good enough. For this reason, in recent years, many enterprises have been involved in the further research and deve...

AI Technical Summary

Problems solved by technology

[0002] my country is rich in medicinal plant resources. The book "China's Soil Pesticides" published in 1959 recorded 220 kinds of plant pesticides, belonging to 86 families, with natural active substances that kill insects and sterilize bacteria. The water extract has a 90% inhibition rate on the germination of potato late blight spores, and the 15-fold boiled liquid of Artemisia annua has a 50-60% control effect on wheat leaf rust. These single plants are used as pesticide fungicides, not only the liquid used High concentration consumes Chinese herbal medicine resources, increases the cost of crop disease control, and the efficacy is not good enough

For this reason, in recent years, many enterprises have been involved in the further research and development of plant pesticides, such as a biopesticide produced by Chengdu Enwei Pharmaceutical Co., Ltd., which was reported in the third issue of "Pesticide" magazine published by Shenyang Chemical Industry Research Institute in 2001. It is made of hops, mugwort leaves and lovage. It has different degrees of protection against fourteen kinds of fungal pathogenic bacteria such as rice sheath blight, rice blast and wheat head blight, as well as tobacco leaf bacterial wilt and edible fungus Bacillus. Inhibition, its disadvantages are: 1. It can only prevent and treat plant fungal diseases, but not plant virus diseases; 2. The bactericidal effect is low, it can only be inhibited, and lacks specificity