Bio-efficacy of Clodinafop, Fenoxaprop, Sulfosulfuron, Tralkoxydim, Dithiopyr and Chlorsulfuron Alone and in Combination against Complex Flora of Weeds in Wheat

Chlorsulfuron, clodinafop, fenoxaprop, sulfosulfuron, tralkoxydim and dithiopyr alone and in combination were evaluated against complex flora of weeds in wheat. All the herbicidal treatments significantly reduced the dry weight of complex weeds. Chlorsulfuron was effective against broadleaf weeds and ineffective against grassy weeds. Fenoxaprop, clodinafop and tralkoxydim controlled grassy weeds but not the broadleaf weeds. Sulfosulfuron was very effective against grassy weeds and also to some extent against non-grassy weeds. Dithiopyr alone or in tank mixture was ineffective. Tank mixture of fenoxaprop+ chlorsulfuron at 100+20 g, clodinafop+chlorsulfuron at 50+20 g, tralkoxydim+ chlorsulfuron at 250+20 g and sulfosulfuron+chlorsulfuron at 15+10 g ha−1 provided 73–84% control of complex weed flora and being at par with each other produced grain yield of wheat similar to weed-free. Isoproturon+2, 4-D sodium salt at 750+500 g ha−1 resulted in 72–75% control of both types of weeds and produced grain yield equivalent to weed-free in one season.