Herbicide composition containing oxaziclomefone and cafenstrole and application thereof

Abstract

The invention discloses a herbicide composition containing oxaziclomefone and cafenstrole and application thereof. The herbicide composition comprises active ingredients of oxaziclomefone and cafenstrole, wherein the weight ratio of the oxaziclomefone to the cafenstrole is 99:1 to 1:99, and is preferably 10:1 to 1:10. The accumulation quantity of the oxaziclomefone and the cafenstrole is 0.1 to 80 percent of the total weight of the composition, and is preferably 2 to 20 percent. The herbicide composition has the advantages that the ingredients are reasonable; the prevention effect is superior to the activity during the single application of each ingredient; the synergistic effect is achieved; the weed prevention and control spectrum is expanded; the paddy field gramineae weed, cyperaceae weed and broadleaf weed can be prevented and removed through once medication; the number of medication times is reduced; the prevention and control cost is reduced; the generation of the weed resistance is retarded; the safety on the crops is high; the safety requirements of the pesticide preparation are met.

Description

technical field [0001] The invention belongs to the technical field of herbicides, in particular to a herbicide composition containing oxaziclozone and mefentrazone and its application, in particular to a weed control method for controlling annual weeds, barnyardgrass and lawn in rice fields The herbicide is a binary herbicide composition composed of oxaziclozone and mefentrazone as active components. Background technique [0002] Rice is one of the most important crops in the world. It is known as the top five crops in the world together with cereals, wheat, soybeans, corn, fruit trees and vegetables, and it is also the most important food crop. It maintains human life and production. At present, in the pesticide market for rice, herbicides rank first, insecticides rank second, and fungicides rank third. Herbicides are the largest pesticide market among rice pesticides. Varieties that have always been at the top of the list, such as cyhalofop-methyl, penoxsulam, bisfluben...

AI Technical Summary

Problems solved by technology

[0003] With the continuous use of many herbicide varieties in large areas of rice fields, many problems have also arisen: ① Weed resistance is prominent, among which barnyardgrass is more resistant to propanil, butachlor, and dibasal. Recently, Common weeds such as Cyperaceae, Cyperaceae, Alismaceae and other common weeds such as Heteromorpha sedge, Yinglin, Sagittarius japonica, Yujiuhua, and Dracula have developed resistance to sulfonylurea herbicides, making the problem of weeding more difficult. Complicated

[0005] In actual use, oxazimidone has special effects on barnyardgrass and sedge in rice fields, but the effect on some broad weeds and sedges is not satisfactory; mefentrazone can control most weeds very well, and it is different from most weeds. The difference of this kind of herbicide is that Metofen is safe for rice. It is mainly used for the control of velvetleaf, retroflexus, crabgrass and barnyardgrass in rice fields and wheat fields, as well as lawn weeding.

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