Development of an insecticide based management package against pod borer, euchrysops cnejus (f) attacking yard long bean

Abstract

Abstract : A study was conducted in the experimental field of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur during February- August 2010 to evaluate the efficacy of some insecticide based management packages against pod borer, Euchrysops cnejus (F.) attacking yard long bean. Results indicated that management package comprising of mechanical control (hand picking) with 2 sprays of RipcordlO EC (Cypermethrin) @ 1.0 ml/litre of water at 15 days interval starting from inflorescence infestation appeared to be the best option offering the lowest pest incidence (10.58%), lowest intensity of infestation, the highest yield (14.25 t/ha) and BCR (4.465) followed by sole use of Ripcord 10 EC (Cypermethrin) at the same rate compared to untreated control. Results obtained from the rest of the approaches were not encouraging.