Bactericidal composition containing picoxystrobin and prochloraz manganese and application thereof

Abstract

The invention discloses a bactericidal composition containing picoxystrobin and prochloraz manganese and application thereof. The bactericidal composition takes the picoxystrobin and the prochloraz manganese as main active ingredients, and mass ratio of the picoxystrobin to the prochloraz manganese is (1 to 50) to (70 to 1). The bactericidal composition can be used for preventing and controlling diseases of cereals, fruit trees and vegetables, has a higher synergistic effect, overcomes and delays drug resistance of pathogens, has a fast sterilization speed and a long effective period, and reduces application cost. A preventing and controlling effect of the composition is significantly better than that of a single dosage. The bactericidal composition can be used for preventing and controlling fungal diseases on crops, especially for fungal diseases such as leaf blight, leaf rust, glume blight, brown blotch, powdery mildew, leaf spot, blight, sclerotinia, net blotch and rhynchosporium secalis of wheat, rice sheath blight disease, anthracnose of cucumber, oranges, pimento and mango, stem-end rot, green mold and penicilliosis of oranges and brown rot of mushrooms. The effect of the composition is better than that of the single dosage.

Description

Technical field: [0001] The invention relates to a bactericidal composition and its application, in particular to a bactericidal composition with picoxystrobin and prochloraz manganese salt 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 s...

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, cucumber, citrus, sweet Pepper, mango anthracnose, citrus pedicle rot, green mold, penicillium, mushroom brown rot, etc. are more serious, causing catastrophic losses to agricultural production. 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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