Bioefficacy of Newer Insecticide Against the Sesame Shoot and Leaf Webber, Antigastra catalaunalis Duponchel (Pyraustidae: Lepidoptera) on Flower and Pod Damage Basis in Sesame

Effect of newer insecticides against the sesame shoot and leaf webber, A. catalaunalis on leaf damage basis in the variety TMV 4 were investigated in the two field experiments conductedduring June to August 2011 in Karaikal district, U.T. of Puducherry. Three foliar applications were given field experiment I and II, the treatment with lambda cyhalothrin5 EC @ 25 g a.i./ha, the per cent flower damage low ranged from (1.29 to 10.13% and 0.03 to 2.77%) followed by spinosad 45 SC @ 33.75 g a.i./ha (1.84 to 12.07% and 0.69 to 4.78%) and superior than the other treatments. All the treatments were superior compared to the untreated check which recorded highest per cent flower damage (7.32 to 20.15% and 4.17 to 12.68%). Two foliar application in the field experiment I and II, the treatment with lambda cyhalothrin 5 EC @ 25 g a.i./ha, the per cent pod damage ranged from (1.07 to 3.62% and 0.63 to 3.11%) followed by spinosad 45 SC @ 33.75 g a.i./ha (1.47 to 4.34% and 1.20 to 4.32%) and superior than the other treatments. All the treatments were superior compared to the untreated check which recorded highest per cent pod damage (6.51 to 13.40% and 5.43 to 11.12%).