Dr. N. Bakthavatsalam
Principal Scientist & Head
Division of Insect Ecology
Fax:080-2341 1961
Phone:080-2351 1982 Extn. 323/ (Res.) 080-64501804
Qualification M. Sc., Ph. D.
Specialization Present interests are the conservation of entomophages through habitat manipulation techniques, Isolation, identification and utilization of attractant chemicals for increasing the efficiency of the entomophages. Development of chemical mimics for increasing the efficiency of the attractants
Professional Experience 29 years
Publications 60
Training (International)
Post doctoral training for one year on the Olfactory receptors of Drosophila melanogaster at National Centre for Biological Sciences, Bangalore.
Trained at Hewlett Packard facility at Singapore on the Use and maintenance of GCMS
Recognized as consultant in semiochemical research for insects
Brief Achievements
The different geographical populations of Helicoverpa armigera utilized different blends of  Z-11-hexadecenal and Z9- hexadecenal, proved through electro antennogram and behavioural experiments
Synergistic activity was observed when odorant mixtures were presented to the insects in comparison to individual  as the insects perceive the blends as different compounds though it is not possible to identify new compounds in the mixtures through analytical methods.
Developed attractants for chrysopids and trichogrammatids which can be used as reinforcing agent in the fields
Cultivars such as MCU-5 or MCU- 9 were highly preferred by entomophages because of their favorable chemical and physical characteristics.
Conservation of natural enemies through tritrophic interactions and use of semiochemicals was proved.
Selected Publications
Bakthavatsalam, N. and Tandon, P.L. 2006. Influence of strain variation and kairomonal compounds on the parasitising efficiency of Trichogramma chilonis Journal of Biological Control 20(1): 13-18
Bakthavatsalam, N., Tandon, P.L. and Ballal, C. R. 2007. Behavioral responses of Campoletis chlorideae (Ichneumonidae : Hymenoptera) to the kairomonal substances. Journal of Entomological Research, 31(3):217-223
Bakthavatsalam, N. and Tandon, P. L. 2006. Kairomones, their optimum concentrations, and application techniques to enhance the parasitization efficiency of Trichogramma chilonis Ishii (Hymenoptera: Trichogrammatidae) Journal of Biological Control. 20(2):169-174.
Bakthavatsalam, N., Tandon, P. L., Patil, S.B., Bhemmana Hugar & A. Hosamani, A. 2007. Kairomone formulations as reinforcing agents for increasing abundance of Chrysoperla carnea (Stephens) in cotton ecosystem..J. Biol. Control, 21(1):1-8.
Bakthavatsalam, N. and Tandon, P. L. 2007. Behaviour and Electrophysiological responses of Chrysoperla carnea (Stephens) to kairomones- acid hydrolysed/ oxidised L-tryptophan and its breakdown products. Journal of Biological Control 21 (special issue): 79-84.