A kind of seed coating agent for preventing and treating root rot and its preparation method and application

Abstract

The invention discloses a seed coating agent for preventing and treating root-rot disease as well as a preparation method and application of the seed coating agent, and relates to the technical fieldof pesticide. The seed coating agent for preventing and treating the root-rot disease is prepared from uniconazole, tebuconazole and hymexazol, wherein the mass ratio of the three components is (1 to5) to 1 to (8 to 20). According to the preparation method of the seed coating agent for preventing and treating the root-rot disease, disclosed by the invention, the uniconazole, the tebuconazole andthe hymexazol with different action mechanisms are compounded and screened to obtain an optimum compound proportion; the compounded medicament with the proportion has synergistic effects on three kinds of pathogenic fusarium which cause the root-rot disease. Furthermore, on the basis of the proportion, suitable excipients are added to prepare a suspended seed coating agent; particularly, the suspended seed coating agent has obvious significant prevention and control effects on the root-rot disease, so that early prevention of the root-rot disease is realized; the suspended seed coating has thecharacteristics of high efficiency, low toxicity, long persistence, low cost, convenience in use, environment friendliness and the like; meanwhile, the seed coating agent has a promotion effect on seed germination.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a seed coating agent for preventing and treating root rot and its preparation method and application. Background technique [0002] Root rot is an important soil-borne fungal disease in crop production, and the incidence of the disease is extremely high. Root rot occurs widely in soybean producing areas in my country, and has the characteristics of severe disease and difficult control. Domestic and foreign studies have reported that Fusarium is the main pathogenic bacteria of soybean root rot, especially Fusarium oxysporum and Fusarium oxysporum F. solani. Fusarium F. graminearum, F. equiseti, F. proliferatum, etc. can also cause soybean root rot. The study found that the pathogenic Fusarium populations in different regions are often different due to the influence of cultivation methods, ecological environment and climatic conditions. Because Fusarium has a wide range of ho...

AI Technical Summary

Problems solved by technology

Because Fusarium has a wide range of hosts, it can harm wheat, corn, soybeans, tobacco and other crops, and can survive for a long time on the field residue, soil surface or inside, resulting in soybean root rot caused by Fusarium. happens, hard to prevent

[0003] Seed coating is one of the most effective measures to prevent and control soybean root rot, but the commonly used seed coating agents in production are mostly in the form of a single agent, and their use is often restricted by factors such as control effect, application range, and phytotoxicity. Increased resistance to pests and diseases and reduced control effects

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