Efficiency of NPV and "Vairimorpha necatrix" on groundnut red hairy caterpillar, "Amsacta albistriga" (W.) (Arctiidae -Lepidoptera); pathogenicity of "Beauveria bassiana", "Beauveria Brongniartii" and "Metarhizium anisopliae" to the cashew stem and root borer, "Plocaederus ferrugineus" Linn. (Coleoptera -Cerambicidae); improvement of the field performance of "Bacillus thuringiensis"-based products through biotechnological innovations; mass production and utilization of microbial agents with special reference to insect pathogens; "Bacillus thuringiensis" - protoxin and proteases; effect of microbial pestcides on natural enemies; compatibility of entomogenous fungi with commonly-used insecticides for the management of "Spodoptera litura" (Fabricius); combined application of SINPV and HaNPV against "Spodoptera litura" (F.) and "Helicoverpa armigera" (Hbn.) populations on tomato; microbial pesticides in integrated pest management; evaluation of nuclear polyhedrosis virus formulations in the management of "Helicoverpa armigera" on pigeonpea; bioefficacy, biosafety and mass culturing of certain microbial pesticides for the management of key pests of pulses; microbial pesticides and integrated pest management for sustainable crop protection; microbials in tea pest management; entomopathogenic fungi for the management of diamondback moth, "Plutella xylostella" on cauliflower; studies on mass culturing of the entomopathogenic white halo fungus, "Verticillium lecanii" on three grain media and its bioefficacy on "Helicoverpa armigera" (Hubner) on pigeonpea; safety of "Vairimorpha" sp. to beneficial insects, "Bombyx mori" and "apis cerana" indica; biological activity of four geographic isolates of Baculovirus on groundnut red hairy caterpillar "Amsacta albistriga" Walker (Lepidoptera -Arctiidae); entomogenous fungal fauna of the rice ecosystem of Tamil Nadu; determination and distribution of "Cryl Ac" gene in "Bacillus thuringiensis" var. "Kurstaki" isolated from Pondicherry region; certain aspects of NPV infecting the larvae of "Spilosoma obliqua" Walker (Arctiidae); effect of entomofungal pathogens after "in vivo" passage the larvae of the diamondback moth, "Plutella xylostella" (I.) (Lepidoptera - Plutellidae); use of nuclear polyhedrosis virus against the teak defoliator - "Hyblaea puera" - problems and prospects; pathogenicity of "Vairimorpha" sp. against the tobacco cutworm "Spodoptera litura" (Fab.); studies on the pathogenicity of "Beauveria bassiana", (Balsamo) a fungal pathogen of the shot hole borer of tea; additive and synergistic interaction between entomopathogenic nematodes and "Bacillus thuringiensis" for root grub control.