Mixed weeding composition containing acifluorfen and flumetsulam

Abstract

The invention discloses a mixed weeding composition containing acifluorfen and flumetsulam. The weeding composition is prepared from the following main effective components: acifluorfen and flumetsulam at the mass ratio of (1-99) to (1-99). The composition disclosed by the invention can be added with different surfactants, thickeners, solvents or solid fillers and the like, and can be processed into a plurality of dosage forms, namely missible oil, a suspending agent, an emulsion in water, wettable powder, dry suspension, a water dispersible granule and wettable powder. The weeding composition is capable of preventing and removing grassy weeds, broadleaf weeds and cyperaceous weeds of a paddy field, compared with single dosage, under the premise of improving pesticide effect, the resistance of weed is delayed, the weed control spectrum is wide, the lasting period is long, and the mixed weeding composition is safe to rice and next-stubble crops, and is an ideal paddy field weed killer.

Description

technical field [0001] The invention belongs to the field of pesticides, in particular to the field of herbicides, and relates to a mixed herbicidal composition of acifluorfen and flumetsulam. The herbicidal composition can be used for post-emergence weeding in paddy fields. Background technique [0002] Acifluorfen, also known as weed net, bean broad water purifier; chemical name: 5-(2-chloro-α,α,α-trifluoro-p-tolyloxy)-2-nitrobenzoic acid . It is a contact-type selective post-emergence herbicide, which can be absorbed by the stems and leaves of weeds, but not absorbed by roots in the soil, and is easily decomposed by microorganisms, so it cannot be used for soil treatment, and it can be used in direct-seeding rice fields. Its structural formula is as follows: [0003] [0004] Flumesulam, chemical name: N-(2,6-difluorophenyl)-5-methyl-1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamide; 2',6'-difluoro-5-methyl(1,2,4)-triazolo(1,5-a)pyrimidine-2-sulfonanilide, the structur...

AI Technical Summary

Problems solved by technology

[0007] At present, herbicides in paddy fields 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 weeds in paddy fields. Uniformity is also likely to cause residual toxicity to current crops or subsequent crops

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