EFFICACY OF DIFFERENT POST-EMERGENCE CHEMICAL APPLICATION FOR SUMMER WEEDS MANAGEMENT IN SUGARCANE

Abstract

Six different chemicals were evaluated for their efficacy in managing summer weeds of sugarcane belonging three different categories i.e. broad leaved, narrow leaved (grasses) and narrow leaved (sedges). These chemicals were used as solo applications as well as in combinations. Eleven different treatments were designed for this study including weedy check. The results revealed that the best control of all three types of weeds was achieved by two treatments i.e. Orcus+ Ametryn+Atrazine and Orcus+Dual Gold controlling more than 90% of weed flora in target fields without any negative effect on cane crop. The plots where Ametryn+Atrazine and Dual Gold were applied as solo, most of the broad leaved weeds and grasses were controlled but sedges remained uncontrolled. Hyver, Commit and Acetochlor achieved a moderate control of both broad and narrow leaved weeds. Where, Orcus was applied as solo, only sedges were effectively controlled. This study suggests that Orcus+ Ametryn+Atrazine and Orcus+Dual Gold may be the best combinations for chemical of all three types of weeds in sugarcane.