Herbicide composition containing dithiopyr and clopyralid and application thereof

Abstract

The invention belongs to the field of herbicides and discloses a herbicide composition containing dithiopyr and clopyralid and application thereof. In the herbicide composition, dithiopyr and clopyralid serve as main active ingredients in a mass ratio of 1-80:1-80, wherein the dithiopyr and the clopyralid account for 10 to 85 mass percent of the herbicide composition. The herbicide composition can be applied to the preparation of a herbicide for preventing and removing weeds after planting seedlings, has obvious effect in the application to the preparation of the herbicide for preventing and removing preemergence weeds of a built lawn, and is particularly applicable to the preparation of the herbicide for preventing and removing festuca arundinacea and annual bluegrass from a lawn. Compared with a single agent, on the premise of improving the herbicide effect, the herbicide composition delays herbicide resistance, has a broad herbicide spectrum and acts for a long time and is safe forthe lawn and afterculture crops.

Description

Technical field [0001] The invention belongs to the field of pesticides and relates to a herbicidal composition, and in particular to a herbicidal composition containing dithiopyr and clopyralid and its application. Background technique [0002] At present, a problem that cannot be ignored in lawn construction is the emphasis on planting and neglecting maintenance. In particular, the harm of weeds is becoming more and more serious, making the lawn completely unrecognizable. Lawn weeds not only compete with the lawn for glory, fertilizer, and space, but also dilute the function of the lawn and reduce the aesthetic value of the lawn. Injured lawn plants are slender and fragile, with reduced resistance to cold, drought, and trampling, making the lawn prone to degradation and death, and even causing grass shortages. Therefore, weed control is key in lawn planting. [0003] Weeds that harm lawns fall into the following three categories: first, grass weeds, second, sedge weeds, ...

AI Technical Summary

Problems solved by technology

However, clopyralid is ineffective against gramineous weeds, and its herbicidal spectrum is limited, so it is often mixed with agents for controlling gramineous weeds

[0007] At present, lawn herbicides are limited by the safety of crops, and the herbicidal spectrum is also limited. Using a single herbicide alone cannot completely and effectively control the occurrence of lawn weeds. Long growth, excessive dosage or uneven application will easily cause residual toxicity to surrounding flowers and crops or subsequent flowers

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