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, in particular to a herbicidal composition containing clopyralid and tribenuron-methyl and its application. Background technique [0002] Wheat is the main food crop in my country. It is reported that every year the country has different degrees of weed damage and serious weed damage. If weeds are not weeded in the field, wheat yield can be reduced by more than 50%. In order to reduce the economic loss caused by weeds, reduce labor intensity, and at the same time, chemical weeding has gradually become accepted by people because of its convenience, quick effect, and long control time. [0003] In recent years, with the increase of 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 the different climate characteristics and planting ...

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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