Bactericidal composition containing thifluzamide and picoxystrobin and application thereof

Abstract

The invention belongs to the field of pesticides, and discloses a bactericidal composition containing thifluzamide and picoxystrobin and an application thereof. The bactericidal composition takes thifluzamide and picoxystrobin as main active ingredients, wherein the weight ratio of thifluzamide to picoxystrobin 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 field: [0001] The invention belongs to the field of pesticides, and relates to a bactericidal composition and its application, in particular to a bactericidal composition containing thifuramide and picoxystrobin and its application. Background technique [0002] Thifuzamide, 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 micro-toxic fungicide developed by Dow AgroSciences, an acute oral LD ​​in rats 50 >5000mg / kg, acute transdermal LD ​​in rats 50 >5000mg / kg, rat acute inhalation LC 50 >50001.4mg / L. The drug is a thiazole amide fungicide, and 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 For rice, other cereal crops, lawns, peanu...

AI Technical Summary

Problems solved by technology

However, as a respiratory inhibitor, its mechanism of action is single, and the problem of resistance must be paid attention to early.

[0008] Rice sheath blight, rice blast, rice smut, wheat sheath blight, loose smut, fishy smut, and blight are serious and often cause catastrophic losses. Although thifuramide and picoxystrobin have The control effect is relatively ideal, but in practical applications, the control of plant pathogens is becoming more and more difficult: on the one hand, with the change of planting structure, the planting area of ​​commercial crops such as melons, fruits and vegetables is gradually expanding, and the degree and quantity of disease occurrence On the other hand, the resistance of pathogenic bacteria is increasing year by year under the pressure of continuous agent selection, and the control effect of a single agent is greatly reduced. Plant disease control is facing a major challenge

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