Paddy field herbicide containing propyrisulfuron

Abstract

The invention provides a paddy field herbicide containing propyrisulfuron. The paddy field herbicide comprises the active ingredients of pretilachlor, mesotrione and propyrisulfuron, and the mass ratio of pretilachlor to mesotrione to propyrisulfuron is (1-30):(1-30):(1-30); and the active ingredients account for 1-60% of the total weight of the herbicide, and the rest is an auxiliary agent. The invention provides an efficient, low-toxicity and environment-friendly herbicide which is beneficial to comprehensive treatment and control of weeds in paddy fields. The mixing of the three active ingredients has an obvious synergistic effect, improves the control effect, reduces the use amount of pesticides, and reduces the cost and the pollution to the environment. The combination of the three active ingredients enlarges the weeding spectrum, and the action mechanisms of the three active ingredients are different, which can overcome the defect that a single agent is easy to produce resistanceand prolong the service life of the agent. The application of the composition can delay or overcome the generation of drug resistance of weeds.

Description

technical field [0001] The invention belongs to the technical field of crop protection, in particular to a paddy field herbicide containing promasulfuron-methyl. Background technique [0002] In order to improve the growth quality of crops, the industry is constantly working on the development of herbicides with high herbicidal effect, broad herbicidal spectrum, low toxicity, low residue, and excellent crop selectivity. In the production environment of crops, long-term use of certain herbicides will cause certain weeds to develop resistance to the corresponding drugs. Hitherto, many kinds of sulfonylurea compounds have been practically used in paddy fields, generally in the form of a composition preparation containing two or more active ingredients and various sulfonylureas effective for preventing gramineous weeds. Poaceae weed killer. In recent years, however, weeds resistant to sulfonylurea herbicides such as bensulfuron-methyl, pyrazosulfuron-methyl and sulfasulfuron-m...

AI Technical Summary

Problems solved by technology

However, in recent years, weeds resistant to sulfonylurea herbicides (such as bensulfuron-methyl, pyrazosulfuron-methyl, and sulfasulfuron-methyl) have emerged, and their control has become problematic

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