The Larval Parasitization by Campoletis chlorideae Uchida (Hymenoptera: Ichneumonidae) of Helicoverpa armigera (Hübner) in Pure Chickpea Crop at Pantnagar

Abstract

Extent of natural larval parasitization by Campoletis chlorideae on Helicoverpa armigera varied from 5 to 41 per cent during 1999-2000 and 3 to 40 per cent during 2000 2001 on standard week basis. Parasitization recorded during 1999 2000 was 33 per cent, 37.3 per cent and 9 per cent during February, March and April, respectively. During 2000-2001 it was 36 and 5 percent in March and April, respectively.