Herbicidal composition comprising mesotrione and 5-fluorourachlor as well as sulphonamide-like herbicide

Abstract

The invention discloses a herbicidal composition comprising mesotrione and 5-fluorourachlor as well as sulphonamide-like herbicide, wherein the active ingredients are composed of a mesotrione, a 5-fluorourachlor and a sulphonamide-like herbicide, the sulphonamide-like herbicide is picked from one of these following herbicide that a chloropirsulfuron, a pyrazosulfuron, a pyrimethanil, a bensulfuron, an azoxysulfuron, an azoxypyrazine; the weight ratio of the mesotrione, the 5-fluorourachlor and the sulphonamide-like herbicide, is 0.5-50:5:0.5-50. The herbicidal composition comprising mesotrioneand 5-fluorourachlor as well as sulphonamide-like herbicide is applied to the control of the weeds in the paddy field, and the weeding effect is obviously improved compared with the single use or binary combination of each single agent, the weeding spectrum is enlarged, the effect period is long, and the rice could be safely grow.

Description

technical field [0001] The present invention relates to the field of pesticide composition and its application, in particular to a herbicidal composition compounded with furansulcotrione, penoxsulam and sulfonylurea herbicides as effective active ingredients. Control of weeds in paddy fields. Background technique [0002] Tefuryltrione: belongs to benzoylcyclohexanedione herbicides, the mechanism of action is 4-hydroxyphenylpyruvate dioxygenase inhibitor, which can inhibit the synthesis of indispensable pigments in plant growth, through the root , stems, young buds, and leaves absorb and conduct rapidly. Furansulcotrione can be used to control annual and perennial broad-leaved weeds in rice fields, both before and after buds. Grass, firefly rush, water sedge and other weeds of the Miscyrus genus, and broad-leaved weeds such as dwarf sagittarius, wild sagittarius, and water chestnuts that have become resistant to sulfonylureas in recent years are very effective. In additio...

AI Technical Summary

Problems solved by technology

However, in recent years, due to the large-scale single and continuous use of some herbicide varieties, many weeds have developed resistance; Weeds and broad-leaved weeds often occur in a mixture, and a single herbicide species or a combination of two components can no longer effectively solve the above problems, and all of them will show some defects

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