Bactericidal composition containing metrafenone and pyraclostrobin

Abstract

The invention discloses a bactericidal composition containing metrafenone and pyraclostrobin. The bactericidal composition is prepared from the following components in percentage by mass: 1 to 80 percent of active components and 20 to 99 percent of auxiliary components, wherein the active components are the metrafenone and the pyraclostrobin. The bactericidal composition has the advantages that a bactericidal spectrum of the bactericidal composition is wider, the generation of the resistance of fungi is avoided and the generation speed of drug resistance of the fungi is delayed; the bactericidal composition has an obvious synergistic effect and is used for preventing and treating common diseases such as powdery mildew, anthracnose, gray mold, sheath blight, downy mildew, leaf spot and epidemics in a planting process of crops; meanwhile, cross resistance to the metrafenone and the pyraclostrobin as the active components is avoided, so that the using amount of pesticides is reduced, and the cost is reduced; meanwhile, pollution to an environment is reduced, management of disease resistance is facilitated, and the bactericidal composition has greater economic efficiency and social efficiency.

Description

technical field [0001] The invention belongs to the field of bactericides, in particular to a bactericidal composition containing metrafenone and pyraclostrobin. Background technique [0002] Metrafenone is a new benzophenone fungicide developed by BASF, which has a good control effect on various powdery mildews. The chemical name of metrafenone: (3-bromo-6-methoxy-2-methylphenyl)-(2,3,4-trimethoxy-6-methylphenyl)methanone, its chemical structural formula for: [0003] [0004] Pyraclostrobin (English common name: Pyraclostrobin, also known as pyraclostrobin), molecular formula is C19H18C1N304, molecular weight is 387.82, structural formula is: [0005] [0006] White to light beige crystalline solid, odorless. Density: 1.367g / cm3, melting point 63.7-65.2°C. Solubility (20°C, g / L): 0.0019 in water, 3.7 in n-heptane, 570 in toluene, 570 in dichloromethane, 100 in methanol, 650 in acetone, and 650 in ethyl acetate. Pyraclostrobin is a nematode respiration inhibitor a...

AI Technical Summary

Problems solved by technology

Although pyraclostrobin can prevent and treat plant diseases caused by fungal pathogens such as Ascomycetes, Basidiomycetes, Deuteromycetes and Oomycetes, pyraclostrobin has a single site of action. If it is used alone for a long time, the pathogens will Resistance will inevitably occur, and the cost of the agent is high, making it difficult to promote plant protection

[0007] In the prior art, the use of metrafenone and pyraclostrobin alone requires sufficient doses to achieve the control effect, and there will be a relatively high risk of drug resistance when used in large quantities, resulting in increased use costs

There is no report on the compounding of metrafenone and pyraclostrobin

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