INCIDENCE OF MAJOR INSECT PEST INFESTATION AND THEIR MANAGEMENT IN SESAME

Abstract

The experiment studied on the major insect pest infestation and their management in sesame during March to June 2012 . The experiment comprised of seven treatments with different chemical insecticides, botanicals with mechanical control including a untreated control; viz. T1(Hand picking), T2 (Neem Seed Extract (NSE) 50g+2g Detergent/L), T3(Hand picking+ Neem Seed Extract (NSE) @50gm/L), T4(Perfeckthion 40EC@2m1/L), Ts(Diazinon 60 EC@2m1/L), T6(Ripcord 1OEC@lml/L), T7(Control treatment). Hawk moth and hairy caterpillar were observed as the major pest of sesame. The treatment T3; Hand picking+ Neem Seed Extract (NSE) @50gm/L gave the maximum control of hawk moth and hairy caterpillar which were highest percent of reduction over control. The maximum number of leaves, number of silliqua per plant, yield per plot were found from the same treatment Hand picking+ Neem Seed Extract (NSE) 50gm/L. T3 showed the highest yield (1.54 t ha') while the lowest yield (1.15 t had) was found from control treatment. The results indicate that the Hand picking+ Neem Seed Extract (NSE) 50gm/L showed the best performance to manage the major pests of sesame as well on the growth and yield as compared to other treatments applied.