Herbicide composition and using method thereof

Abstract

The invention belongs to the field of pesticides and herbicides, and particularly discloses a herbicide composition containing clopyralid, which is applied to forestry nursery and used for preventing and treating weeds of the grass family, broad leaves and sedge family. The herbicide composition comprises the following compounds as active components: 1, a compound A, namely clopyralid; 2, an enhancing active component B of a herbicide mixture, namely oxyfluorfen, wherein the weight proportion of clopyralid to oxyfluorfen is (1:40) to (30:1). According to the herbicide composition disclosed by the invention, by the mutual preparation of the components, the application amount of each single agent can be reduced, the production cost can be reduced, and meanwhile the herbicide controlling spectrum can be widened, and the drug resistance of plants can be slowed down. The herbicide composition can be widely applied to various nursery fields for preventing and removing weeds of grass including barnyard grass, green bristlegrass, amur foxtail, crab grass, bluegrass, moleplant seed and the like, as well as difficult prevention broad-leaf weeds including cirsium setosum, sonchus brachyotus, welted thistle, vicia sativa, polygonum aviculare and the like, and has the characteristics of wide herbicide controlling spectrum, safety and high efficiency to crops.

Description

Technical field [0001] The present invention relates to the field of pesticides, in particular to herbicide compositions, specifically a herbicide composition containing clopyralid and its application. Background technique [0002] Forest weeds have always plagued the growth of seedlings and become a problem for forest management. The spacing between rows of plants in forest nurseries is small, and manual weeding is labor-intensive and time-consuming. At present, Goer soil treatment is commonly used to weed and control annual conifers before they emerge. Due to its long-term use, Goer has a poor control effect on hard-to-control broadleaf weeds such as Echinacea, Endive, Feilian, Dachshund, and Echinacea. Gradually develops into a dominant weed. Some farmers also use biocidal glyphosate and paraquat, but paraquat has a short lasting effect and short weed control time, and weeds are easy to relapse. Many weeds have become resistant to it. [0003] Herbicide varieties cont...

AI Technical Summary

Problems solved by technology

[0003] Herbicide varieties containing a single active component have different degrees of defects in forest nursery weed control. For example, weeds are prone to resistance after continuous application, and the herbicidal spectrum is narrowed. Multiple applications will aggravate weed resistance, resulting in environmental pollution

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