Gopalakrishna Pillai K.

Biological Control, Vector Transmission
M Sc. PhD
Friday, May 15, 1959

• Pest management in polyhouses. • Biological control of whiteflies in polyhouses, Mealybugs and their bio-intensive management. Orius tantillus against Scirtothrips dorsalis on capsicum under polyhouse conditions.• Mass production and release of exotic parasitoids for the management of papaya mealybug. Biointensive management of whiteflies, thrips and tea mosquito bug in various horticultural crops. Studied the egg parasitoids, Trichogramma chilonis and T. chilotraeae on horticultural crops. • Studies on the vector transmission of Citrus Greening Bacterium and Citrus Tristeza Virus and their Management. Molecular detection and analysis of Huanglongbing bacterium (Candidates liberibacter asiaticus). Viral and allied pathogens in Coorg mandarin. Population dynamics and management of citrus psylla, Diaphorina citri Kuwayama. Yellow Sticky Traps for Monitoring Brown Citrus Aphid (Toxoptera citricida Kirkady) in Coorg mandarin. Bioefficacy of some newer molecules against citrus leaf miner, Phyllocnistis citrella Stainton. • Studies on the vectors of coconut root wilt: Vector population, Disease tolerance, Mode of transmission, Light and Electron microscopy of vector tissues, Chemical control of vectors. • Biological control of Rhinoceros beetle with pathogenic virus, Baculovirus oryctes; Release and evaluation of control Baculovirus oryctes in Kerala and in Lakshadeep. • Surveyed of spiders of major agricultural crops of Saurashtra and Kutch from different agroecosystems. • Developed simplified key for identification of spiders. • Identified of 130 species belonging to 55 genera and 17 families. • Studied the population dynamics of spiders in cotton, groundnut and sugarcane agroecosystems. • Studied the detailed biology of predominant species. • Studied the predatory activity and extent of feeding and potential of spiders as a biocontrol agent. • Studied the impact of insecticides on spiders.

1.Gopalakrishna K. Pillai, P.N. Ganga Visalakshy, A. Krishnamoorthy & M. Mani, 2013. Evaluation of the indigenous parasitoid Encarsia transvena (Hymenoptera: Aphelinidae) for biological control of the whitefly Bemisia tabaci (Hemiptera: Aleyrodidae) in greenhouses in India. Biocontrol Science and Technology, DOI:10.1080/09583157.2013.860952

2. Gopalakrishna Pillai, K. 2008. Monitoring and management of vectors of citrus tristeza virus in ‘coorg mandarin’. Indian Journal of Agricultural Sciences 78(5): 445-448.

3. Gopalakrishna Pillai K., Duleep Kumar Samuel and M. Krishna Reddy 2007. Studies on the transmission of citrus greening bacterium, Candidatus Liberibacter asiaticus, by the vector, citrus psylla, Diaphorina citri Kuwayama in ‘coorg mandarin’. Entomon 32 (4): 291-295.

4. Gopalakrishna Pillai K.2003. On farm testing for user-friendly IPM practices. Agricultural Extension Review 15 (2): 23-26.

5. Gopalakrishna pillai, K. and Venugopalan R.2005. A statistical modeling approach for multiple analysis of job performance of village level extension workers. Indian Journal of Extension Education 41(3&4): 13-16.

6. Gopalakrishna Pillai, K. 2006. Hitherto unknown palpimanid spider (Araneae: Palpimanidae) from India. Entomon 31 (2): 133-136.

7. Ganga visalakshy, P.N., Mani, M. Krishnamoorthy, A and Gopalakrishna Pillai, K. 2010. Epizootics of Entomophthora sp. on mango inflorescence hopper, Idioscopus nitidulus (Walker). Journal of Biological Control, 24: 274–275.

8. Samuel, D.K., Shetty, D., Ravishankar, H., Gopalakrishna Pillai, K., Sakthivel, T., Karunakaran, G., Reghupathi, H.B., and Kumar, S. 2007. Molecular detection and analysis of Huanglongbing bacterium (Candidates liberibacter asiaticus) vectored by Diaphorina citri Kuwayama (Hemiptera: Psyllidae) associated with Coorg mandarin decline. Pest Management in Horticultural Ecosystems 13 (2): 91-101.

9. Gopalakrishna Pillai , K., Krishnamoorthy, A. and P.N. Ganga Visalakshi, 2009. First report of hyperparasitoids of Anagyrus dactylopii (Howard) from India. Journal of Biological Control, 9(2): 193-94,

10. Gopalakrishna Pillai, K. 2002. Adoption behaviour of cabbage growers towards IPM practices in on-farm research sites around Bangalore. Pest Management in Horticultural Ecosystems 8 (1): 49-53.

Division of Entomology & Nematology
Mangattethu House, S.V. Market Post, Karunagappally, Kollam Dist. Kerala PIN 690 573.
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