Herbicide composition containing pyroxsulam

Abstract

The invention belongs to the technical field of pesticides, and particularly relates to a herbicide composition with halauxifen-methyl, bentazone and pyroxsulam as active ingredients. The weight ratio of halauxifen-methyl to bentazone to pyroxsulam is (0.5-8):(47.5-760):(1-16). The percentage of the active ingredients in the herbicide composition is 5-85%. The herbicide composition has a synergistic effect; compared with single use or dual use of each single preparation, the weeding effect is obviously improved, a herbicide controlling spectrum is expanded, meanwhile, the use quantity of the pesticides is reduced, the pollution to the environment is reduced, and generation of the drug resistance of weeds is delayed.

Description

[0001] 【Technical field】 [0002] The invention belongs to the field of pesticide chemistry, and in particular relates to a wheat field herbicide composition with hachlorpyridine, bentazone and acesulfame as active components. [0003] 【Background technique】 [0004] Wheat is an important food crop in my country, with a large planting area and a large area of ​​weed damage. At present, chemical control is still the most important method in the comprehensive management of farmland weed damage. However, long-term continuous high-dose application of a single chemical herbicide is likely to cause environmental pollution, phytotoxicity to crops, and weeds are prone to resistance. At the same time, due to the complex grass phase and various types of weeds in the field, such as grass weeds, broad-leaved weeds and other weeds, the use of a single species can no longer effectively solve this problem. Defects. Reasonable compounding of chemical herbicides has many advantages such as e...

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Problems solved by technology

[0015] Some literatures have evaluated the herbicidal effect of the combination of fluclopyrid and acesulfame, and it can be seen that the compound formulation can effectively control most weeds in wheat fields, but the control effect on some broad-leaved weeds is not ideal

[0016] In addition, patents CN201410817304.7 and CN201410823083.4 disclose a ternary herbicidal composition compounded with flucloxapyr and acesulfamet, respectively, mefentrazone and pyrafen Report on Compounding of Acesulfame

[0017] In order to make up for the deficiencies in the actual use of the above single agents and reported compound preparations, the inventors have done in-depth research and unexpectedly discovered on the basis of a large number of indoor formula screening and field efficacy tests that different mechanisms of action The compounding of haclopyral, bentazone and acesulfame within a certain ratio range can not only make up for the defects of the narrow herbicidal spectrum of the three herbicides such as haclopyrid, bentazone and acesulfame, It can also solve the problem of high cost of bentazone

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