Bactericidal composition containing isopyrazam and zoxamide and application of bactericidal composition

Abstract

The invention discloses a bactericidal composition containing isopyrazam and zoxamide and application of the bactericidal composition. The bactericidal composition takes the isopyrazam and the zoxamide as main effective components, wherein the mass ratio of the isopyrazam to the zoxamide is (1 to 70):(1 to 50). The bactericidal composition can be applied to control on cereal, fruit tree and vegetable diseases, has a higher synergetic effect, and is high in sterilizing speed and long in lasting period; the insecticide resistance of germs is overcome and delayed; the application cost is reduced; the control effect of the bactericidal composition is remarkably superior to that of a single agent of the isopyrazam or the zoxamide. The bactericidal composition disclosed by the invention can be used for controlling fungi diseases on crops, and particularly can be used for controlling fungi diseases such as powdery mildew of cucumber, tomato late blight, cucumber disease and downy mildew of grape; the control effect of the bactericidal composition is remarkably superior to that of the 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 benzamid as main active ingredients and its application. Background technique [0002] Isopyrazam, molecular formula: C 20 h 23 f 2 N 3O , Chemical name: 3-difluoromethyl-1-methyl-N-[1,2,3,-tetrahydro=9-(1-methylethyl)-1,4-methanonaphthalen-5-yl] -1H-pyrazole-4-carboxamide. [0003] Pyrafenapyramide is a pyrazole fungicide, a new type of systemic fungicide with spectrum, protective and therapeutic activities. [0004] Zoxamide, molecular formula: C 14 h 16 Cl 3 NO 2 , the structural formula: [0005] [0006] The mechanism of action of benzamid is very unique among oomycete fungicides. It inhibits sclerotin division through the binding of tubulin β-subunit and the rupture of microtubule cytoskeleton. Benhexamid did not affect the motility, cyst formation or germination of zoospores. Along with the ...

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Problems solved by technology

[0007] 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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