A complex antibacterial biological preparation for preventing and treating tobacco brown spot and a preparation method and application thereof

By combining fermented Chinese herbal medicine liquid with active ingredients and using adjuvants, the problems of environmental pollution from chemical control and poor adhesion from biological control have been solved, achieving efficient and environmentally friendly control of tobacco red spot disease and enhancing the disease resistance of tobacco.

CN122397762APending Publication Date: 2026-07-17XINDONGWEI (TIANJIN) TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XINDONGWEI (TIANJIN) TECH CO LTD
Filing Date
2026-04-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing chemical methods for controlling tobacco red spot disease have problems such as environmental pollution and drug resistance, while biological control methods have poor adhesion and diffusion on the surface of tobacco leaves and cannot provide long-term control.

Method used

A compound antibacterial biological agent is formed by combining fermentation broth of traditional Chinese medicine with active ingredients 5-aminolevulinate, sinomenine and limonene, and adjuvants such as polyether-modified heptamethyltrisiloxane, polyvinylpyrrolidone, methyl laurate, urea and modified montmorillonite, for the prevention and control of tobacco red spot disease.

Benefits of technology

It achieves effective prevention and control of tobacco red spot disease. The ingredients are natural, pesticide-free, and environmentally friendly. The formulation's resistance to rain washout is improved through adjuvants, which enhances the disease resistance of tobacco.

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Abstract

The application provides a composite antibacterial biological preparation for preventing and treating tobacco brown spot, and a preparation method and application thereof, and belongs to the technical field of tobacco disease prevention and treatment.The composite antibacterial biological preparation comprises the following components in parts by weight: Chinese herbal medicine fermentation liquor 50-110 parts, active ingredient 8-25 parts, and auxiliary agent 1.5-3.8 parts; the active ingredient is a mixture of 5-amino levulinic acid hydrochloride and sinomenine and limonene at a mass ratio of 5-10:0.01-0.03:0.15-0.78.The application realizes effective prevention and treatment of tobacco brown spot through synergistic effect of multiple components, and the components are natural, easy to degrade, strong in rainwater erosion resistance, free of pesticide residues and environmentally friendly.
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