Herbicidal composition containing clopyralid and tribenuron-methyl and application thereof

Abstract

The invention belongs to the field of pesticides, and discloses a herbicidal composition containing clopyralid and tribenuron-methyl and application thereof. The main active ingredients of the herbicidal composition are clopyralid and tribenuron-methyl in a mass ratio of 1-80:1-80, wherein the clopyralid and the tribenuron-methyl account for 1 to 85 percent of the total mass of the herbicidal composition. The herbicidal composition can be used for preparing herbicides for controlling post-emergence weeds in a wheat field, and particularly has an obvious effect when used for preparing herbicides for controlling various broadleaf weeds in the wheat field. Compared with single-component herbicide, the herbicidal composition delays the resistance of the weeds, has a broad herbicidal spectrum and acts for a long time on the premise of improving herbicide effect, and is safe for wheat and afterculture crops.

Description

Technical field [0001] The invention belongs to the field of pesticides and relates to a herbicidal composition, specifically a herbicidal composition containing clopyralid and bensulfuron and its application. Background technique [0002] Wheat is my country's main food crop. It is reported that wheat across the country suffers from varying degrees of weed damage every year. Severe weed damage can reduce wheat production by more than 50% if weeding is not carried out in the field. In order to reduce the economic losses caused by weed damage and reduce labor intensity, and also because of its convenience, quick effect, and long control time, chemical weeding has gradually been accepted by people. [0003] In recent years, with the increase in herbicide varieties and the widespread promotion of chemical control technology in agricultural production, chemical weed control has been widely used in various stages of wheat growth. Due to different climate characteristics and plan...

AI Technical Summary

Problems solved by technology

However, with the extensive use of tribenuron-methyl, many weeds have gradually developed resistance to it, seriously affecting the use of tribenuron-methyl

[0008]Currently, herbicides in wheat fields are limited by crop safety, and their herbicidal spectrum is also limited. Using a single herbicide alone cannot completely and effectively control weeds in wheat fields In addition, some herbicides are likely to cause residual toxicity to current crops or subsequent crops due to their high water solubility, long field duration, excessive dosage, or uneven application.

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