Herbicide composition containing pyrasulfotole and clodinafop acid

Abstract

The invention relates to the technical field of pesticides, and discloses a compound herbicide for a wheat field. The compound herbicide comprises two active components, namely pyrasulfotole and clodinafop acid, wherein the weight ratio of the pyrasulfotole to the clodinafop acid is (3:100) to (75:4); the pyrasulfotole and the clodinafop acid account for 0.5-85 mass percent of the compound herbicide. After the two active components, namely the pyrasulfotole and the clodinafop acid, are compounded, the weed control effect is improved by using the complementarity between the two active components; the defects of using the two active components independently is overcome; gramineous weeds of the wheat paddock can be prevented and killed; the broad-leaved weeds also can be prevented and killed; the compound herbicide has significant synergism. The herbicide composition has an obvious weeding effect and high safety to wheat, does not have influence on after-reap 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 gramineous weeds and broad-leaved weeds in wheat fields, which uses Pyrasulfotole and clodinad-propargyl as active ingredients binary herbicide composition. 【Background technique】 [0002] Wheat is the second largest grain crop in my country and plays an important role in the national economy. In the process of wheat production, pests and weeds are very harmful and often cause serious economic losses. The widespread occurrence of weeds in wheat fields is also a worldwide problem. According to statistics, due to the harm of weeds, the yield of wheat is generally reduced by 10-15%, and the severe one reaches more than 20%. In recent years, with the adjustment of the planting industry structure and the change of the farming system, the population change and community succession of wheat fi...

AI Technical Summary

Problems solved by technology

Oxopapargyl is used in cereal crops to prevent and control gramineous weeds, such as arpeggios, wild oats, bluegrass, foxtail, etc. It is ineffective against broad-leaved weeds

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

[0005] A large number of documents have reported herbicidal compositions containing clodinafop-propargyl and their applications. For example, Chinese patent CN102258027 discloses a synergistic herbicidal composition containing clodinafop-propargyl and baclofen, and CN102027909 discloses a combination of diflufenamide and The herbicidal composition of clodinafop-propargyl and its application, CN101438709 discloses a herbicidal composition containing clodinafop-propargyl and fluroxyfen, but there is no literature record about the compounding of clodinafop-propargyl and Pyrasulfotole

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