Bactericidal composition containing picoxystrobin and prothioconazole and application thereof

Abstract

The invention discloses a bactericidal composition containing picoxystrobin and prothioconazole and an application thereof. The bactericidal composition uses picoxystrobin and prothioconazole as main active ingredients, wherein the mass ratio of picoxystrobin to prothioconazole is 1:50-70:1. The bactericidal composition can be applied to the prevention and treatment of cereals, fruit trees, and vegetable diseases, has a high synergistic effect, overcomes and delays the drug resistance of pathogens, has fast sterilization speed, long-lasting effect, reduces application costs, and has good control effect. Significantly better than its single dose use. The present invention can be used to prevent and treat fungal diseases on crops, especially can be used to prevent and treat wheat leaf blight, leaf rust, glume blight, brown spot, powdery mildew, leaf spot, fusarium wilt, sclerotinia, nettle Spot and moire, rice sheath blight, rice false smut, rape and peanut gray mold, black spot, brown spot, black shank, sclerotinia and rust fungal diseases, the effect is better than single agent use.

Description

Technical field: [0001] The invention relates to a bactericidal composition and its application, in particular to a bactericidal composition with picoxystrobin and prothioconazole as main active ingredients and its application. Background technique [0002] Picoxystrobin, a methoxyacrylate fungicide developed by Syngenta, chemical name: (E)-3-methoxy-2-{2-[6-(trifluoromethyl)- 2-Pyridyloxymethyl]phenyl}acrylate methyl ester. The structural formula is as follows: [0003] [0004] Picoxystrobin has low toxicity and is a mitochondrial respiratory inhibitor, that is, through the cytochrome b and C 1 Inter-electron transfer inhibits the respiration of mitochondria, thus playing a bactericidal and bacteriostatic role. Picoxystrobin was still effective against strains resistant to 14-demethylase inhibitors, benzamides, tricarboxamides and benzimidazoles. During use, once picoxystrobin is absorbed by the leaves, it will move in the xylem and flow in the transport system with...

AI Technical Summary

Problems solved by technology

[0009] However, wheat leaf blight, leaf rust, glume blight, brown spot, powdery mildew, leaf spot, fusarium wilt, sclerotinia, net spot and moire, rice sheath blight, rice false smut, Rapeseed and peanut gray mold, black spot, brown spot, black shank, sclerotinia and rust are more serious, causing catastrophic losses to agricultural production, although picoxystrobin and prothioconazole single agent It has a relatively ideal control effect on some diseases, but in practical applications, it is found that the control of plant pathogens is becoming more and more difficult. Gradually expanding, the incidence and number of diseases have increased, making it more difficult to prevent and control; second, the current abnormal climate provides certain conditions for the outbreak of the disease; third, the selective impact of long-term chemical drugs makes the pathogenic bacteria The resistance of the disease is increasing year by year under the pressure of continuous agent selection, and the control effect of a single agent is greatly reduced

In summary, the current plant disease control is facing major challenges

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