Bactericidal composition, pesticide and application thereof

Abstract

The invention discloses a bactericidal composition, a pesticide and application thereof. The bactericidal composition comprises the following components of N-(5-methyl-1,3-thiazole-2-yl)-4-methyl-1,2,3-thiadiazole-5-formamide and cuppric nonyl phenolsulfonate in a weight ratio of (1:50)-(50:1). The bactericidal composition is used as an active component and combined with agromedically acceptable auxiliary components together so as to form a pesticide with a sterilization effect; the pesticide can effectively prevent crop diseases, such as rice bacterial leaf blight, citrus canker, pseudomonas solanacearum, tobaccomosaivirus, pepper virus disease, tomato virus disease and the like; the effect of the pesticide is obviously higher than that of a double-component single agent; and a remarkable synergetic effect is achieved, the application dosage of each single agent can be effectively reduced, the better effects of enlarging sterilization scope and delaying plant pesticide-resistance are achieved, the duration is prolonged, and a remarkable promotional value is obtained.

Description

technical field [0001] The invention relates to a bactericidal composition, corresponding bactericidal pesticides and applications thereof. Background technique [0002] Rice bacterial leaf blight (Rice bacterial leaf blight) is a serious rice disease that occurs in all major rice regions in the world, and has become an important disease in Asian and Pacific rice regions. It also occurs in most provinces and districts in my country. After the rice is damaged, the leaves will dry up, the shriveled grains will increase, the rice quality will be crisp, and the thousand-grain weight will decrease. Generally, the yield can be reduced by 10% to 30%. In severe cases, the yield can be reduced by more than 50%, and even the grains cannot be harvested. [0003] Citrus canker is currently distributed in all citrus producing areas. After the seedlings are infected, the growth is hindered, the leaves fall off, and the nursery is delayed or cannot be released. As a result, after the t...

AI Technical Summary

Problems solved by technology

On the one hand, the copper ion can be combined with the H on the surface of the pathogen cell membrane + 、K + Such as cation exchange, causing the protein on the bacterial cell membrane to coagulate and kill the pathogenic bacteria, and some copper ions can also penetrate into the pathogenic bacterial cells, combine with certain enzymes, and affect their activity

Due to the large amount of non-copper single agent used in the field, it is easy to cause phytotoxicity and has a certain safety risk to crops

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