Bactericidal composition containing picoxystrobin and famoxadone, and applications thereof

Abstract

The invention discloses a bactericidal composition containing picoxystrobin and famoxadone, and applications thereof, wherein the bactericidal composition uses picoxystrobin and famoxadone as main effective components, and a mass ratio of picoxystrobin to famoxadone is 1:50-70:1. According to the present invention, the bactericidal composition can be used for preventing and controlling the diseases of cereals and vegetables, has high synergistic effect, can overcome and delay the drug resistance of bacteria, has advantages of rapid sterilization, long effective period and application cost reducing, can provide the prevention and control effect significant superior to the use of the single agent, can be used for preventing and controlling fungal diseases on crops, can be particularly used for preventing and controlling leaf blight, leaf rust, glume blight, brown spot, powdery mildew, leaf spot, blight, Sclerotium disease, net blotch and leaf blotch of wheat, rice sheath blight disease,and powdery mildew, downy mildew, net blotch, rust, glume blight, late blight, leaf spot, anthracnose, stem blight, corky scab and other fungal diseases of pea, beets, rape, grapes, potatoes, melons,hot peppers and tomatoes, and can provide the effects superior to the use 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 picoxystrobin and oxaconazole 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 the...

AI Technical Summary

Problems solved by technology

[0008] However, wheat leaf blight, leaf rust, glume blight, brown spot, powdery mildew, leaf spot, fusarium wilt, sclerotinia, net spot and moire, rice sheath blight, pea, sugar beet, Rapeseed, grapes, potatoes, melons, peppers, tomato powdery mildew, downy mildew, net spot, rust, glume blight, late blight, leaf spot, anthracnose, stem blight, scab, etc. It has caused catastrophic losses to agricultural production. Although picoxystrobin and oxaflucondone have a relatively ideal control effect on some diseases, in practical applications, it has been found that the control of plant pathogens is becoming more and more difficult. The main The reasons are as follows: First, 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 it more difficult to prevent and control; The third is the long-term selective influence of chemical drugs, which makes the resistance of pathogenic bacteria increase year by year under the pressure of continuous drug selection, and the control effect of a single drug is greatly reduced.

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

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