Weeding combination

Abstract

The invention provides a weeding combination which comprises active constituent A and active constituent B. The active constituent A adopts compound of formula I, the active constituent B adopts ethoxyfen-ethyl, and the weight ratio of the active constituent A and the active constituent B is 0.02 to 50. The invention also provides a preparation method and the purpose of the weeding combination. Atest result shows that the weeding combination has obvious synergic action, more importantly, the application amount is greatly reduced, and the use cost is reduced. The weeding combination can effectively prevent and cure certain broad leaf weeds. By compounding herbicidal chemicals with different mechanisms of action and different models of action, the application amount of each single dose is effectively reduced, and the weeding combination has good effects on enlarging the weeding spectrum, delaying the weed resistance, improving the control efficiency and the like, wherein R is H, -CO-C (2-15) alkyl group, Na or K, and X is Br or I.

Description

technical field The present invention belongs to the field of agricultural plant protection, and in particular relates to a herbicidal composition with improved performance, in particular to a fungicidal composition containing . Background technique Active ingredient formula 1 is a benzonitrile herbicide. Its mechanism of action is mainly the oxidative phosphorylation uncoupling agent and inhibitor of photophosphorylation reaction in the process of respiration, which hinders the production of ATP. These herbicides are effective in controlling broadleaf weeds. Ethoxyfen-ethyl is a diphenyl ether herbicide. It is mainly used for post-emergence control of broad-leaved weeds in soybean, wheat, barley, peanut, pea and other crops, such as velvetleaf, zephyr, chrysanthemum, cocklebur, and more than ten kinds of weeds. The dosage is 10~ 30g(a.i.) / ha. Practical pesticide experience has shown that repeated and exclusive application of an active compound to control weeds will in...

AI Technical Summary

Problems solved by technology

The technical problem to be solved by the present invention is: in view of the herbicide resistance and soil residue problems in practical application, two kinds of herbicides with different herbicide principles are selected for compounding, so as to improve the control effect of herbicides, delay the occurrence of resistance, reduce the Application amount, reduce control cost