Bactericidal composition containing thifluzamide and trifloxystrobin and application thereof

Abstract

The invention belongs to the field of pesticides and discloses a bactericidal composition containing thifluzamide and trifloxystrobin and an application thereof. The bactericidal composition takes thifluzamide and trifloxystrobin as main active ingredients, wherein the weight ratio of thifluzamide to trifloxystrobin is (1-70):(1-50). The bactericidal composition can be used for preventing the diseases of cereals, fruit trees and vegetables, has relatively high synergistic effect, overcomes and delays the drug resistance of germs, and realizes high bactericidal speed and long duration while the application cost is reduced and the prevention effect is obviously better than that of using a single agent.

Description

Technical areas: [0001] The present invention belongs to the field of pesticides and relates to a bactericidal composition and its use. Specifically, it relates to a bactericidal composition containing thifuramide and trifloxystrobin and its use. Background technique [0002] Thifluzamide, chemical name: 2',6'-dibromo-2-methyl-4'-trifluoromethoxy-4-trifluoromethyl-1,3-thiadiazole-5- Hydroxyanilide, the structural formula is as follows: [0003] [0004] Thiofuramide is currently a slightly toxic fungicide developed by Dow AgroSciences and is used for acute oral LD ​​in rats. 50 >5000mg / kg, acute percutaneous LD in rats 50 >5000mg / kg, rat acute inhalation LC 50 >50001.4mg / L. This drug is a thiazole amide fungicide. Its mechanism of action is a succinate dehydrogenase inhibitor, that is, it inhibits the synthesis of succinate dehydrogenase in the fungal tricarboxylic acid cycle. It also has strong systemic conductivity and can be used It is effective in rice, ...

AI Technical Summary

Problems solved by technology

[0008] Rice sheath blight, rice blast, rice smut, wheat sheath blight, loose smut, blight, blight, powdery mildew, rust, leaf spot, glume blight, king spot, downy mildew Plant diseases such as scab and scab occur seriously, often causing catastrophic losses. Although thifuramide and trifloxystrobin have relatively ideal control effects, in practical applications, the control of plant pathogens is becoming more and more difficult: one 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 it more difficult to prevent and control; on the other hand, the resistance of pathogenic bacteria continues to increase. The pressure of pesticide selection is increasing year by year, 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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