Composite herbicide containing rimsulfuron, efficient haloxyfop-methyl and metribuzin and application of composite herbicide

Abstract

The invention discloses a composite herbicide containing rimsulfuron, efficient haloxyfop-methyl and metribuzin and application of the composite herbicide. The herbicide comprises the following main effective components: the rimsulfuron, the efficient haloxyfop-methyl and the metribuzin, wherein the content of the rimsulfuron, the efficient haloxyfop-methyl and the metribuzin in the herbicide is 25-38%; the mass ratio of the rimsulfuron to the efficient haloxyfop-methyl to the metribuzin is (8-16) to (5-20) to (4-15). The composite herbicide also comprises a wetting dispersant, an emulgator, a stabilizer, a suspension agent and a methyl oleate additive, so that the composite herbicide can be prepared into a dispersible oil suspension. The composite herbicide has a remarkable effect of post-emergence weeding in potato fields and in particular weeding of various gramineous weeds and broadleaf weeds. Compared with binary composite preparations or other ternary composite preparations, for the composite herbicide disclosed by the invention, the weed resistance is delayed under the condition that the herbicide effect is improved; a weeding spectrum is expanded; both gramineous and broadleaf weeds are weeded; the composite herbicide is long in lasting period and reliable in safety on potatoes and afterreap crops.

Description

technical field [0001] The invention relates to a compound herbicide and its application, in particular to a compound herbicide containing rimsulfuron-methyl, high-efficiency haloxyfop and mecitrione and its application. Background technique [0002] Rimsulfuron (Rimsulfuron), molecular formula C 14 h 17 N 5 o 7 S 2 , chemical name: N-(((4,6-dimethoxy-2-pyrimidinyl)amino)carbonyl)-3-(ethylsulfonyl)-2-pyridinesulfonamide [0003] Structural formula: [0004] Used to control annual or perennial gramineous and broad-leaved weeds in corn fields, such as field thistle, iron chestnut, Cyperus cyperi, sorrel wrinkle leaf, Arabian sorghum, wild oats, crabgrass, barnyardgrass, ryegrass multiflora, velvet Hemp, amaranth, pig's cattail, poppies, chickweed. Best used early after emergence on annual weeds. [0005] Haloxyfop-P-methyl, molecular formula C 16 h 13 CIF 3 NO 4 , chemical name: 2-[4-(3-chloro-5-trifluoromethyl-2-pyridyloxy)phenoxy]propanoic acid; 2-[4-(5-trifluo...

AI Technical Summary

Problems solved by technology

The drug effect is greatly affected by soil type, organic matter content, humidity, and temperature, and the requirements for use are strict. Improper use, or ineffective, or cause phytotoxicity

[0011] At present, herbicides in potato fields are limited by the safety of crops, and their herbicidal spectrum is also limited. Using a single herbicide alone can no longer completely and effectively control the occurrence of weeds in potato fields.

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