Bactericidal composition containing isopyrazam and pyraclostrobin and application thereof

Abstract

The invention discloses a bactericidal composition containing isopyrazam and pyraclostrobin and application thereof. The bactericidal composition is composed of main effect components isopyrazam and pyraclostrobin in a weight ratio of (1-60):(1-60). The bactericidal composition is used for preventing and treating diseases of cereal crops, vegetables and fruit trees, has higher synergic action, overcomes and postpones the drug resistance of pathogenic bacteria, has the advantages of high bactericidal speed, long duration period and lower application 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 crops, especially can be used for preventing and treating such fungus diseases as rust disease, powdery mildew, leaf spot, net blotch, cobwebbing, glume blight, leaf blight, banana freckle, epidemic disease and the like, and has better effects 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 pyraclostrobin as main active ingredients and its application. Background technique [0002] Isopyrazam, chemical name: 3-difluoromethyl-1-methyl-N-[1,2,3,4-tetrahydro-9-(1-methylethyl)-1 ,4-methanonaphthalen-5-yl]-1H-pyrazole-4-carboxamide, molecular formula C 20 h 23 f 2 N 3 O, Isopyrazam has the following four isomers, the present invention includes any one or a mixture of several, and the chemical structural formulas are as follows: [0003] [0004] Pyrafenapyr was developed by Syngenta. This fungicide has broad-spectrum activity and has excellent control performance on various diseases on various crops. It is resistant to triazoles and methoxyacrylates. It is highly effective against sexual strains of pathogens, especially against Septoria fungi. For example, it is superior to epoxiconazole in the c...

AI Technical Summary

Problems solved by technology

[0008] Methoxyacrylate fungicides are a new type of fungicides that have emerged in recent years. They are currently one of the main types of fungicides in the market for the prevention and treatment of fungal diseases. The market share is very large. This type of fungicides has high activity but a single target. This also leads to the rapid occurrence of bacterial resistance. For example, some of these agents are not as good as before in the prevention and treatment of powdery mildew. Even if the dosage is increased, they cannot achieve the desired effect. Matching research is imminent

[0009] At present, with the change of planting structure, the degree and number of diseases of melons, fruits, vegetables, and cereal crops have increased, and it is more difficult to prevent and control objectively; Under pressure, the resistance of pathogenic bacteria is increasing year by year, and the control effect of a single agent is greatly reduced; thirdly, the introduction speed of new pesticide varieties has dropped significantly at present, and there is a lack of new target agents; fourthly, due to the increasingly stringent environmental protection requirements, some Products are restricted in use, resulting in less selective medication

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