Bio-efficacy, Ethoxysulfuron, Sugarcane

A field experiment was carried out at Pantnagar, Uttarakhand during 2009-10 and 2010-11 to study the effect of rates of herbicide ethoxysulfuron for the control of Cyperus rotundus and other weeds in sugarcane. Ethoxysulfuron at 60 g/ha effectively reduced the density of Cyperus rotundus as well as Trianthema monogyna, Digera arvensis, Cleome viscosa and Ipomoea spp. The highest cane yield was obtained with hand weeding thrice at 30, 60 and 90 days after planting. Among the herbicides, ethoxysulfuron at 60 g/ha being at par with ethoxysulfuron at 56.25 g/ha recorded significantly higher cane yield than 2,4-D at 1000 g/ha.