Bactericidal composition containing pyraclostrobin and prothioconazole and application thereof

Abstract

The invention discloses a bactericidal composition containing pyraclostrobin and prothioconazole and application thereof. The bactericidal composition uses the pyraclostrobin and prothioconazole as main effective components, wherein the weight ratio of the pyraclostrobin to the prothioconazole is (1-70):(1-50). The bactericidal composition can be used for preventing and treating diseases on cereals, melons and fruits, or vegetable crops, has higher synergic effect, overcomes and postpones the drug resistance of pathogenic bacteria, has the advantages of high bactericidal speed and long duration time, lowers the use cost, and has obviously better preventing and treating effects than a single agent. The bactericidal composition can be used for preventing and treating fungus diseases on the crops, especially can be used for preventing and treating leaf blight, rust disease, powdery mildew, downy mildew, epidemic disease, anthracnose, scab, brown spot, seedling blight, gray mold, banana freckle, penicilliosis and other fungus diseases, and has better effect than a single agent.

Description

technical field [0001] The invention relates to a bactericidal composition and its application, in particular to a bactericidal composition with pyraclostrobin and prothioconazole as main active ingredients and its application. Background technique [0002] Pyraclostrobin, also known as: pyraclostrobin, the chemical name is N-methoxy-N-2-[(N-p-chlorophenyl)-3-pyrazolyloxymethyl]benzene base carbamate. The structural formula is as follows: [0003] [0004] Low toxicity of pyraclostrobin: rat oral>5000, skin>2000, non-irritating to rabbit eyes, no potential mutagenicity, no teratogenic carcinogenicity, harmless to bees, hydrolysis half-life in water DT 50 >30d, stable at pH5-7, photolysis half-life in water DT 50 <2h, soil half-life DT in field 50 2-37d. The compound is not only low in toxicity, safe for non-target organisms, but also safe and friendly to users and the environment, and has been listed as a "candidate agent for reducing risk" by the US EPA...

AI Technical Summary

Problems solved by technology

[0008] At present, the prevention and control of plant pathogens is becoming more and more difficult. On the one hand, with the change of planting structure, the planting area of ​​economic crops such as melons, fruits and vegetables has gradually expanded, and the degree and number of diseases have increased, making the prevention and control more difficult. On the other hand, the resistance of pathogenic bacteria is increasing year by year under the pressure of continuous agent selection, the control effect of a single agent is greatly reduced, and the control of plant diseases is facing a major challenge

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