Herbicide composition containing flucarbazone

Abstract

The invention discloses a wheat paddock weeding composition which comprises halauxifen-methyl, bentazone, flucarbazone and the rest pesticide adjuvant serving as effective components. The weight ratio of the halauxifen-methyl, the bentazone to the flucarbazone is (0.5-8):(47.5-760):(2.5-40), and the weight percentage of active components in the weeding composition is 10-95%. According to application requirements, the weeding composition can be prepared into dosage forms such as wettable powder, water dispersible granules, suspending agents and dispersible oil suspending agents. The wheat paddock weed control effect of the composition is better than that of individual use of the halauxifen-methyl, the bentazone and the flucarbazone, dosage of pesticides is decreased, the adverse effect of the pesticides on an ecological environment is reduced, and the problem of drug resistance of weeds is effectively solved.

Description

[0001] 【Technical field】 [0002] The invention belongs to the field of pesticide chemistry, and in particular relates to a wheat field herbicide composition using haclopyridine, bentazone and fluasulfuron-methyl as active components. [0003] 【Background technique】 [0004] Wheat is an important food crop in my country with a large planting area. In recent years, due to changes in farmland ecosystems and enhancement of weed resistance, weeds in wheat fields have become the main hazards in wheat production. Chemical weeding is the main means of controlling weeds in agriculture, but the herbicides currently on the market cannot control all the weeds in the wheat field at the same time. A large amount of manpower and material resources, on the other hand, caused environmental pollution and excessive pesticide residues, which brought direct harm to human health. Moreover, due to long-term repeated or unscientific use of these chemicals, the resistance of weeds in wheat fields was ...

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Problems solved by technology

[0015] Patent CN201410430512.1 discloses that haclopyridine can be compounded with flucarbasulfuron for weeding in wheat fields, but the control effect of this composition on some broad-leaved weeds in wheat fields is slightly poor;

[0016] Patent CN201310666986.1 discloses a herbicidal composition containing fluasulfuron-methyl and bentazone, which is applied to the control of gramineous and broad-leaved weeds in wheat fields, but the composition cannot solve all weed problems in wheat fields

[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 haclopyridyl, bentazone and flucarbasulfuron within a certain ratio range can not only make up for the defects of the narrow herbicidal spectrum of the three herbicides of haclopyridyl, bentazone and flucarbasulfuron, but also It can solve the problem of high cost of bentazone

At present, there is no report about the combination of haclopyridate, bentazone and flucarbasulfuron

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