Project Directorate of Biological Control, P.B. No. 2491, HA Farm Post, Bellary Road, Bangalore - 560 094, India.
*Part of the Training Program on Biological Control of Crop pests in Different Cropping Systems (Under the NATP Project on “Team of Excellence for Human Resource Development in Biological control”).
Studies on age related parasitisation of the egg parasitoid, Telenomus remus on Coreyra eephaloniea, Helieoverpa armigera, Spodoptera litura, and S. exigua indicated that eggs of S. litura followed by S. exigua were more preferred for parasitisation than H. armigera and C. cephaloniea. Two days old parasitoid parasitlsed the maximum number of eggs in the different hosts i.e. 90.0% in S. litura, 76.66% in S. exigua, 44.0% in C. cephaloniea and 24.66% in H. armigera. Parasitisation potential decreased with the advancement of age of the parasitoid in all the hosts and effective parasitisation was noticed till seven days age of the parasitoid.
