Onion (Allium cepa L.) weed interference lowers bulb yield and financial return for onion growers who pay labour. During the Rabi seasons of 2011–12 2012–13, a field experiment was worked out at Horticultural College Research Institute, Dr.Y.S.R University, Venkataramanagudem, Tadepalligudem, West Godavari District, A.P to examine effects pre post emergence herbicides on economics cv.N–53. Ten ...