Traditional Chinese herbal medicine composition capable of preventing and treating tobacco damping-off

Abstract

The invention discloses a traditional Chinese herbal medicine composition KCD capable of preventing and treating tobacco damping-off. Effective components of the traditional Chinese herbal medicine composition are prepared from the following raw materials: flos lonicerae, leaves, flowers or seeds of datura stramonium, herba asari, fructus cnidii, radix sophorae flavescentis, radix scutellariae and ginkgo seeds. The invention also discloses a bactericide containing the traditional Chinese herbal medicine composition; the bactericide is capable of effectively preventing and treating tobacco damping-off.

Description

technical field [0001] The invention relates to a Chinese herbal medicine composition for preventing and treating tobacco damping-off disease and a fungicide containing the Chinese herbal medicine composition. Background technique [0002] Tobacco damping-off is one of the main diseases of tobacco, which can occur in various growth stages of tobacco, and the most serious damage is at the seedling stage. It occurs in various tobacco-producing areas in my country. Poor management of seedlings in plastic greenhouses, incomplete disinfection, and uncoordinated temperature and humidity often lead to disease within 3-4 days, and even a large number of deaths, resulting in a lack of seedling sources and affecting later tobacco leaf production. [0003] The current prevention and control methods for this disease are mainly based on chemical pesticides, especially metalaxyl, which is a special drug for damping-off disease, has been used for a long time in the past. Later, it was fou...

AI Technical Summary

Problems solved by technology

It occurs in various tobacco-producing areas in my country. Poor management of seedlings in plastic greenhouses, incomplete disinfection, and uncoordinated temperature and humidity often lead to disease within 3-4 days, and even a large number of deaths, resulting in a lack of seedling sources and affecting later tobacco leaf production.

[0003] The current prevention and control methods for this disease are mainly based on chemical pesticides, especially metalaxyl, which is a special drug for damping-off disease, has been used for a long time in the past. Later, it was found that the drug resistance of the bacteria was also gradually increasing, making the disease more rampant, and at the same time causing problems such as the increase of pesticide residues in tobacco leaves and environmental pollution; at present, the country is vigorously promoting the development of biological pesticides, mainly microbial live fungicides, antibiotics and plant sources fungicide

However, microbial live fungicides have poor stability, are easily polluted during fermentation, and strains are also prone to mutation during storage, storage environment and storage time, etc., all of which can lead to unstable control effects of their products

In addition, the application of a large number of live microbial fungicides breaks the original microbial balance in the natural environment, coupled with the inability to adapt to the new environment, the colonization effect is not good and cannot play a good role; antibiotic fungicides are a class of applications Better fungicides, but because antibiotics are fermented by microorganisms, it is difficult to obtain a high-efficiency strain, and antibiotics can easily make the target resistant. In short, botanical fungicides are highly safe for humans, animals and plants It is very popular, and it is a favorable measure to alleviate and change the "three R" problems caused by chemical pesticides and antibiotic fungicides

But at present, there is no effective Chinese herbal fungicide for the prevention and treatment of tobacco damping-off

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