"Insects, pathogens, nematodes and plants have co-existed for nearly about 400 million years. Since then the above pests have been causing enormous losses to the plants amounted to 20-30% losses as per estimates given so far in the country. Realizing the role of these pests as limiting factor in agricultural productivity, several methods were developed and incorporated into management program for economically important pests. Out of these, use of ...
