Herbicide composition containing pyraflufen-ethyl and pyroxsulam

Abstract

The invention relates to the field of pesticide technology, and discloses a compound herbicide for wheat fields. The herbicide comprises two active components of pyraflufen-ethyl and pyroxsulam, wherein a weight ratio of the two active components is 1 : 16-16 : 1; and the mass percentage content is 0.5-90% that of a compound herbicide. The two active components of pyraflufen-ethyl and pyroxsulam are compounded; disadvantages are made up when pyraflufen-ethyl and pyroxsulam are used individually. The herbicide can prevent and eradicate both annual grassy seeds and broadleaf weeds, and has a significant synergistic effect. The herbicide composition not only has obvious weeding effect but also has good security to the wheat, has no influence on afterreap crops, and is an ideal herbicide.

Description

【Technical field】 [0001] The present invention relates to a herbicide composition for preventing and treating weeds in wheat fields, in particular to a herbicide for preventing and treating grassy weeds and broad-leaved weeds in wheat fields, which is composed of metapyrafen and pyrimyroxysulfonate A binary herbicide composition with an amine as the active ingredient. 【Background technique】 [0002] Wheat is the second largest grain crop in my country, accounting for 20% to 27% of the total area of ​​grain crops in the country over the years, and its planting range covers almost all agricultural areas. In 2011, my country's wheat planting area was about 24 million hectares, with a total output of about 100 million tons. The area of ​​wheat grass damage accounts for 30% of the planting area in my country, of which serious grass damage accounts for about 10%. Chemical control of weeds in wheat fields is an important measure to ensure wheat production. Since the introduction ...

AI Technical Summary

Problems solved by technology

The drug is absorbed by weed leaves, sheaths, stems or roots, accumulates at growth points, inhibits acetolactate synthase, and cannot synthesize branched-chain amino acids, which in turn affects protein synthesis and weed cell division, causing weeds to stop growing, yellow, then die

It is used for the control of gramineous weeds such as hard grass, kanko, Japanese kanko, brome, wild oats, clubhead grass, multiflora ryegrass, etc. It is not ideal for broad-leaved weeds

In addition, when acesulfame is used as a single dose in the wheat field, the dosage is relatively high under the premise of ensuring the efficacy, and there is a hidden danger of phytotoxicity.

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