Kitherian Sahayaraj Head and Associate Professor in Zoology, Former Dean of Sciences



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Popular articles


  1. Sahayaraj, K. 1994. Insect pests management through reduviids. Kissan World. 21(8): 26 – 27.

  2. Sahayaraj, K. 1996. Assassin bugs. Science Reporter. 33(6): 52 – 54.

  3. Sahayaraj, K. 2001. Anthrox. Xaverian. 58 – 62.

  4. Sahayaraj, K. 2002. Biopesticides – an Indian scenario. Acrobiose. 1(7): 26 – 29.

  5. Sahayaraj, K. 2003. Hunter reduviids in cotton bug control. Acrobiose. 1(12): 9 – 11.
Books Published


1. Sahayaraj, K. 2004. Indian Insect Predators and Biological control (Editor) Dayas Publication, New Delhi (ISBN  9788170353409). pp. 400.

2. Sahayaraj, K. 2007. Pest Control Mechanism of Reduviids. ABD Publisher, Jaipur (ISBN 978-81-89473-03-4). Pp. 240.

3. Francis Borgio J, Sahayaraj K, and Alper Susurluk I. 2011. Microbial Insecticides: Principles and Applications. NOVA Science Publisher, Inc., New York (ISBN: 978-1-61209-223-2), pp. 492.

    1. Sahayaraj, K. and Sujatha, S. 2012. Temperature-dependent biology and physiology of predatory reduviids. Nova Publication, New York (ISBN: 978-1-61209-940-8). Pp. 179.

    2. Sahayaraj, K. 2014. Basic and applied aspects of Biopesticides (edited), (ISBN 978-81-322-1876-0- print and 978-81-322-1877-7 (eBook)), Springer India. Pp. 384.

    3. Sahayaraj, K. 2016. Artificial Rearing of Reduviid Predators, Spriger Publishing Media, Sigapore, ISBN 978-981-10-2521-1. DOI: 10.1007/978-981-10-2522-8

    4. Sahayaraj, K. and Selvaraj, P. 2017. Biopestides: Innovations and Practices, Smith and Franklin Books in Biosciences, United Kingdom, ISBN: 978-1-9164009-1-7, pp.271.


Proceding Published


        1. Narayanan, M. Sethuramalingam, T. and Sahayaraj, K. 2007. Technology and Management of Bioresearches – Proceedings, St. Xavier’s College, Palayamkottai. Pp. 224.

Conference/Symposia, Seminar Attended / Paper Presented





  1. National symposium on Environment Biology held at St. Xavier’s College, Palayamkottai – 627 002, from 2-4, April 1987 – India.

  2. Sahayaraj, K. & Ambrose, D.P. 1989. Effect of chosen pesticide on the development of a non-target biocontrol agent Acanthespis pedestris Stal International conference on Biology and Control of pests of Medical and agricultural Importance, Madurai pp. 229.

  3. Sahayaraj, K. & Ambrose, D.P. 1990a. Biological control of Heliothis armigera Hubner by chosen reduviids a preliminary work. In Fourth National symposium on Soil Biology and Ecology, Ban galore pp. 6.

  4. Sahayaraj, K. & Ambrose, D. P. 1990b. Behavioural response of biocontrol agents, Acanthapis pedestris Stal and A. siva Distant to relative humidities. In National Symposium on Behavioural Science, Madurai, pp. 39.

  5. Seminar on sustainable development and sustainable utilization of natural resources at P.G. & Research Department of Zoology, Loyola College, Madras – 600 034 on 5-6, February 1993.

  6. National symposium on Environment and Education at Zoological Research Laboratory, St. Xavier’s College, Palayamkottai on 21.04.1993.

  7. Brain storm session an evaluation of students performance in national educational test held at VOPC college, Thoothukudi on 9th April 1994.

  8. Ambrose, D.P. & Sahayaraj, K. 1995. Polymorphism in assassin bug Neohaematorrhophus therasii Ambrose and Livingstone. In Symposium on Biological and cultural control of Agricultural and medicinal pests held at St. Xavier’s College, Palayamkottai on 22-24 Feb. 1995. pp.9.

  9. Sahayaraj, K. & Ambrose, D.P. 1995. Short-term functional response of the reduviid predator Neohaematorrhophus therasii Ambrose and Livingstone to the cotton stainer Dysdercus cingulatus Fab. Ibid. pp. 45.

  10. Sahayaraj, K. 1997a. Biodiversity of reduviids in Tamil Nadu national Symposium on Natural Resources Management. St. Joseph’s College, Trichy – 2 on February 26-28, pp. 30.

  11. Saharayaraj, K. 1997b. Role of reduviids in plantation crop insect pest management. Ibid pp. 76.

  12. Balagugru, B., Nagamurugan, N., John Britto, S. & Sahayaraj, K. 1997c. Effect of medicinal plants products on the development and economic parameters of silkworm. Ibid. pp. 36.

  13. DST Animal Sciences- group monitoring workshop held at TBGRI on March 4 – 5, 1998.

  14. Paulraj, M.G. and Sahayaraj, K. 2000a. Efficacy of Eclipta alba L. Hassk and Ocimum sanctum Linn. leaves extracts and powders against Tribolium castaneum Herbst in groundnut.In Vistas of Entomological research for the new millennium held at G.S.Gill Research Institute, Chennai .

  15. Rajamanikam, K. and Sahayaraj, K. 2000b. Impact of two neem based bio-pesticides on the egg and early nymphal instars of Rhynocoris marginatus (Fab.). Ibid.

  16. Ragupathy, E. and Sahayaraj, K. 2000c. Biodiversity of reduviid predators in the semi-arid zones of three southern district of Tamil Nadu. Ibid.

  17. Sahayaraj, K. 2001. Bioefficacy of chosen plant products on Corcyra cephalonica Stainton biology. Seminar on Degradation of the Environment and its Restoration held at Pope’s college, Sawyerpuram 628 251 from 22nd to 24th February 2001.

  18. Sahayaraj, K. 2001. Biopesticides in insect pest management. Ibid.

  19. Sahayaraj, K. 2002. Physiology and biochemistry of cultivable crustaceans held in Madras University, Chennai on 18 and 19 February 2002.

  20. Third discussion meeting on Allied chemical ecology. COSTED, Chennai on 30.11.2002. Organized by Prof. T.N. Ananthakrishnan.

  21. Seventh meeting of the task force on Biopesticides and Crop Management at DBT, New Delhi from 20 – 21 January 2003.

  22. K.Sahayaraj. Bioefficacy -----under invitro study, at National Seminar on recent advances in biotechnology, Ponnaiyan Ramajayam college, Thanjavur-614904 on 24 – 25, February, 2003.

  23. Fourth discussion meeting on Biodiversity, biosignalling, biotechnology in insect-plant interactions. COSTED, Chennai on 29.11.2003. Organized by Prof. T.N. Ananthakrishnan.

  24. State-level seminar on Animal Biotechnology – A new Wave in Biology, at PSG college of Arts and science, Coimbatroe from September 24 – 26 2003 (Participated).

  25. National Seminar on Technology and Management of Bioresearches conducted at St. Xavier’s College, Palayamkottai, India. From 21st – 22nd March 2005.

  26. National seminar on Biotechnological management of nematode pests and scope of entomopathogenic nematodes from 21 – 22 November, 2005 at Casted Auditorium, Chennai (Participated).

  27. International Conference on Marine and Terrene Ecology conducted at St. Xavier’s College, Palayamkottai, India. From 17th – 19th January 2006 (Participation).

  28. National conference on Aquatic Resources, Aquaculture and Aqua Show “CONFAQUA 2006” conducted at St. Xavier’s College, Palayamkottai, India. From 15th – 17th February 2006.

  29. Colloquium on Nanoscale Science and Arthropod Bioresources. Department of Zoology, University of Kerala, Tirvandrum from 18 – 19th December 2006.

  30. Project monitoring session on Animal Science Research Committee meeting held at CSIR, New Delhi on 8th February 2007.

  31. National conference on Applied Zoology and sustainable development from 13 – 14 July 2007 conducted at IICT, Hyderabad, India.

  32. Meeting of the research consortium on 31.10.2007 at Manonmanium Sundaranar University, Tiruneveli.

  33. Board Meetings- Ministry of Earth science at Department of Earth science, Tamil University, Thangjour from 17 – 18 December 2008 and presented a proposal on Isolation and screening of algal seaweeds for biocides.

  34. Evaluation of botanicals in the control of groundnut pests. National symbosium on ecofreindly pest management – February 7 – 8, 2008, PP. 34 -35.

  35. XXI Annual conference of national environmental science academy and National Conference on “Urban environment –present scenario and future strategies” December 27 – 29, 2009. Presented paper Botanical insecticides in pest management – PP. 88.

  36. Utilization of phytoecdysteriods (PEs) in ecofriendly pest management in National symposium on Non-chemical insect pest management from February 5 – 6, 2009 at Entomology Research Institute, Loyolla College, Chennai – 600 034.

  37. National conference on ecotoxicology at St. Xavier’s College, Palayamkottai 2 from 26 – 27th February 2009.

  38. S. Vinoth Kanna and K. Sahayraj. 2009. Prey deprivation and venom quantity in the reduviid predators, Catamiarus brevipennis (Serville). National conference on Biotechnological approaches of ecofreindly insect pest management, University of Madras, Chennai 25 from 27 – 28 2009. PP. 65.

  39. Insect resistant crops – a need for next green revaluation – in National conference on Biotechnological approaches to next green revolution from March 2 – 3, 2009 at Department of Plant Biology and Biotechnology, Loyola College, Chennai – 600 034.

  40. DST PAC meeting, Centre for National Biological Sciences, Bangalore

  41. K. Sahayaraj and S. Jeya Parvathi Biology and biological control potential of two Oxyopes spp. in the Second Biopesticide international Conference (biocicon-2009) on 26th – 28th November 2009 held at St. Xavier’s College (Autonomous),Palayamkottai -627 002, Tamil Nadu, India

  42. K. Sahayaraj and Brisca Renuga, Immunological impact of Rutaceae plants Ruta graveolens Linn. and Toddalia Asiatic Linn. (Rutaceae) on Spodoptera litura (Fab.) (Noctuiidae) in the Second Biopesticide international Conference (biocicon-2009) on 26th – 28th November 2009 held at St. Xavier’s College (Autonomous),Palayamkottai -627 002, Tamil Nadu, India

  43. K. Sahayaraj and S. Muthu Kumar. Rhynocoris marginatus (Fab.) salivary venom on mortality, haemolymph protein profile and digestive enzymes of  Spodotpera litura Fab. (Leipdoptera : Noctuidae) in the Second Biopesticide international Conference (biocicon-2009) on 26th – 28th November 2009 held at St. Xavier’s College (Autonomous),Palayamkottai -627 002, Tamil Nadu, India

  44. K. Sahayaraj and A. Vinoth Kanna In vivo and invitro evaluation of Rhynocoris fuscipes Fab. (Hemiptera : Reduviidae) salivary venom on Spodotpera litura Fab. (Leipdoptera : Noctuidae) in the Second Biopesticide international Conference (biocicon-2009) on 26th – 28th November 2009 held at St. Xavier’s College (Autonomous),Palayamkottai -627 002, Tamil Nadu, India

  45. K. Sahayaraj and Majesh Tomson Impact of two pathogenic fungal crude metabolites on mortality, biology and enzymes of Dysdercus cingulatus (Fab.) (Hem: Pyrrhocoridae). in the Second Biopesticide international Conference (biocicon-2009) on 26th – 28th November 2009 held at St. Xavier’s College (Autonomous),Palayamkottai -627 002, Tamil Nadu, India

  46. K. Sahayaraj and P. Kombiah Attractant and insecticidal activity of neem gold on banana rhizome weevil (BRW), Cosmopolites sordidus (Germ.)  in the Second Biopesticide international Conference (biocicon-2009) on 26th – 28th November 2009 held at St. Xavier’s College (Autonomous),Palayamkottai -627 002, Tamil Nadu, India

  47. K. Sahayaraj, Y. Mary Jeeva and R. Azhaguraj. Insecticidal and ovipositional efficacy of Sargassum tenerrimum ( J.Agardh) extracts on Dysdercus cingulatus (Fab.) (Hem: Pyrrhocoridae). In the Second Biopesticide international Conference (Biocicon-2009) on 26th – 28th November 2009 held at St. Xavier’s College (Autonomous),Palayamkottai -627 002, Tamil Nadu, India

  48. K. Sahayaraj, P.Selvaraj, K. Subathra, S. Muthu kumar, P. Kombiah, A. Vinoth Kanna and Muthupandi. M. Methyleuginol and botanicals as attractants for mango fruitflies). In the Second Biopesticide international Conference (Biocicon-2009) on 26th – 28th November 2009 held at St. Xavier’s College (Autonomous),Palayamkottai -627 002, Tamil Nadu, India

  49. K. Sahayaraj and S.Rajesh. Bioefficacy of crude and sliver based nanoparticles of Padina pavonica (Linn.) and Caulerpa scalpelliformis (R.Br.) Web.V.Bosse on Fusarium oxysporum f.sp. vasinfectum (Atk.) Snyd and Hans and Xanthomonas campestris pv malvacearum (Smith) Dye. In the Second Biopesticide international Conference (Biocicon-2009) on 26th – 28th November 2009 held at St. Xavier’s College (Autonomous),Palayamkottai -627 002, Tamil Nadu, India

  50. K. Sahayaraj, R. Azhaguraj and S. Rajesh. 2010. Insecticideal activity of biosynthesized silver nanoparticles using Padina pavonica (Linn.) against four cotton pest, In National conference on interplay of chemical and biological science on January 6 – 8, 2010 at Department of Zoology, Thiruvalluavar University, Vellore

  51. K. Sahayaraj and S. Kalidas. 2010. Stage preference and biological control potential of Rhynocoris longifrons (Stal) (Hemiptera : Reduviidae) on two important cotton pest. In National conference on interplay of chemical and biological science on January 6 – 8, 2010 at Department of Zoology, Thiruvalluavar University, Vellore.

  52. K. Sahayaraj. 2010. Artificial rearing of a reduviid predator Rhynocoris marginatus (Fab.) (Hemiptera: Reduviidae) using meat-based artificial diet. In Arthropod Mass Rearing and Quality Control working group (AMRQC) and International Organization for Biological Control (IOBC), we appreciate your interest in the 12th workshop of the IOBC AMRQC, Vienna, Austria, October 19-22, 2010. 

  53. S. Muthu Kumar, S. Naseer Banu, P. Kombiah and K.Sahayaraj. 2010. Capturing, handling times and predatory rate of Rhynocoris marginatus on three mealy bugs on National seminar on Esi 34 and Colloquium on Ethology from Organism Down to Ethobiomolecule - ECEODE 2010, from 16-18 December 2010 at Kerala University, Kerala (OP-19). pp.23.

  54. K. Sahayaraj, 2011. Augmentative biological control evaluation of reduviids on cotton pests. Animal Science research projects monitoring committee, CSIR, CSIR complex, New Delhi on 18.01.2011

  55. S. Rajesh and K. Sahayaraj. 2011. Antifungal activity of Caulerpa veravalensis against Fusarium oxysporum f. sp. vasinfectum using microplate and agar well diffusion assays. National conference on Bioactiva’11 Life saving products from marine origins. Department of marine science,Bharathidasan University, Tiruchirappalli on 10th and 11th February 2011. PP 51-52.

  56. Rajesh, S., Asha, S., Kombiah, A. and K. Sahayaraj. 2011. Biocidal activity of algal seaweed on insect pest and fungal plant pathogen. National seminar on Harmful/beneficial insects of agricultural importance with special reference to the nuisance pest Luprops tristis in rubber plantations. On 17 to 18th February 2011 at St. Joseph’s College, Calicut. Pp. 06

  57. Majesh Thomson, S. Kalidas and K. Sahayaraj. 2011. Bioefficacy of Rhynocoris fuscipes Fab. (Hemiptera : Reduviidae) on three cotton pests. National seminar on Harmful/beneficial insects of agricultural importance with special reference to the nuisance pest Luprops tristis in rubber plantations. On 17 to 18th February 2011 at St. Joseph’s College, Calicut. Pp. 08.

  58. Sahayaraj, K. And M. Muthupandi, 2011. Predatory response of Rhynocoris kumarii to hemipteran pest of cotton. Presented in the National symposium on harnessing biodiversity for biological control of crop pests, NBAII, Bangalore from 25-26, May 2011, I-P-45, PP. 42-43.

  59. Muthupandi, M. and K. Sahayaraj 2011. Bioefficacy of Rhynocoris fuscipes (Fab.) (Heteroptera: Reduviidae) on chosen forest dwelled reduviids on Phenacoccus solenopsis (Tinseley) (Hemiptera: Pseudococcidae). In National Symposium on sustaining agricultural productivity and food security under changing climate. Gugly Center for Biological Research, Bhubaneswar from 11-12 November 2011, PP. 03.

  60. Majesh Thomson, S. Kalidas and K. Sahayaraj. 2011. Stage preference and bioefficacy evaluation of Rhynocoris longifrons (Stal) (Hemiptera : Reduviidae) against three economically important cotton pests. In National Symposium on sustaining agricultural productivity and food security under changing climate. Gugly Center for Biological Research, Bhubaneswar from 11-12 November 2011, PP. 09-10.

  61. Attended 21st meeting of expert group A in the board thematic area of conservation and sustainable utilization of natural resources. Ministry of environment and forest, New Delhi on 13.2.2012.

  62. Majesh Tomson, Teresa Gayathri, S. Kalidas and K. Sahayaraj. 2012. Biological impacts of Phyllospheric phytopathogens of water hyacinth on herbivore grasshopper, Genosula punctifrons. In: National symposium on recent advances in bioinnaculents technology. Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai from -01-02 March 2012.

  63. P. Kombiah, M. Muthupandi and K. Sahayaraj. 2012. Bioefficacy evaluation of a reduviid predator, Euagoras plagiatus Burmeister against Phenacoccus solenopsis Tinsley. In: National seminar on Forest Health Management. Institute of Forest Genetis and Tree Breeding, Coimbatore from 21 – 22 March, 2012.

  64. Rajesh, S., Asha, S., J. Martin Rathi, Patric Raja and K. Sahayaraj. 2012. Green synthesis of silver nanoparticles using Caulerpa scalpelliformis and Caulerpa veravalensis and evaluation of their bactericidal activity. Annual workshop on Advanced Materials. PSN College of Engineering and Technology, Tirunelveli. 24 – 25 February 2012. P 35.

62. Subash, N. and Sahayaraj, K. 2012. Biological activity of Caulerpa veralansis (Thivy and Chauhan) against Spodoptera litura Fab. National Conference on Frontier Areas in Applied Zoology from 15-17, March, 2012 at Ayya Nadar Janaki Ammal College, Sivakasi – 626 124. Sponsored by UGC.

63. Asha, A., Patrick raja, D., Rathi, J.M. and Sahayaraj, K. 2012. Caulerpa veralansis (Thivy and Chauhan) marine green algae extract against third instar nymphs of Dysdercus cingulatus (Fab.) (Hemiptera : Pyrrhocoradae). National seminar on recent trends in pest management and conservation of our natural enemies. 15-16, March, 2012. V.O.Chidambaram College, Thoothuduki 628008. Sponsored by DST.

64. National Conference on Frontier Areas in Applied Zoology from 15-17, March, 2012 at Ayya Nadar Janaki Ammal College, Sivakasi – 626 124. Sponsored by UGC

65. Prospects of medicinal plants in promoting wellness, National Academy of Biological Sciences, University of Madras, Chennai from 14-15, May, 2012 (Participated).

66. National seminar on new materials research and nano technology, In Govt. Arts College, OOty, Tamil Nadu from 12-15 September, 2012.

67. National seminar on Biodiversity and bioresource: A Fragile balance, Dept. ogf Zoology, St. Xavier’s College, Palayamkottai from 25 & 26, February, 2013 (Participated).

68. Marine algae, presented at PAMC meeting, Ministry of earth science, New Delhi on 19.12.2013

69. Mass rearing of reduviid predators (Hemiptera, Reduviidae) with natural hosts, factitious hosts and artificial diets: an overview, 13th Workshop of the IOBC global working group on mass rearing and quality assurance, November 6-8, 2013, Bangalore, India

69. Majesh Tomson and K. Sahayaraj. 2013. Beauveria bassiana entomotoxin-based silvernanoparticles biogenesis and its impact on cotton pests. Fourth Biopesticide International Conference, St. Xavier’s College, Palayamkottai, 28-30 November, 2013, pp.

70. S. Rajesh and K. Sahayaraj. 2013. Antiphytopathogenic activity of biogenic silver nanoparticles of marine macroalgae, Ulva lactuca (Linnaeus). Fourth Biopesticide International Conference, St. Xavier’s College, Palayamkottai, 28-30 November, 2013, pp.*

71. A. Parveen Sulthana ,. J.Martin Rathi and K.Sahayaraj. Anti phytopathogenic activity of gallic acid reduced Terminalia chebula Retz., silver nanoparticles. Fourth Biopesticide International Conference, St. Xavier’s College, Palayamkottai, 28-30 November, 2013, pp.

72. Echereobia, C.O., Nwana, I.E., Asawalam, E.F., Emeasor, K.C. and Sahayaraj, K. 2013. Efficacy of gamma irradiation on the postharvest control of Cowpea Bruchid, (Callosbruchus maculatus). Fourth Biopesticide International Conference, St. Xavier’s College, Palayamkottai, 28-30 November, 2013, pp.



73. Organizing committee member – National seminar on recent trends in endocrinology, Dept. ogf Zoology, St. Xavier’s College, Palayamkottai from 24 & 25, February, 2014 (Participated).

74. Christopher Echereobia, Elechi Asawalam, Kingsley Emeasor and K. Sahayaraj. 2016. Potential of Microwave irradiation on the postharvest control of Cowpea Weevil and the proximate composition of Cowpea Seeds. XXV international congress of Entomology, USA, September 25-30.

75. Sahayaraj, K. 2017. Diversity of economically important seaweeds from Tamil Nadu. XIX International Botanical Congress, China in July 23-29, 2017.

76. A.Geovigila and Sahayaraj, K. 2017. Biosynthesis, characterization and evalution of some medicinal activities of Cinnamonum iners bark extract mediated biocompatibility silver nanoparticles. XIX International Botanical Congress, China in July 23-29, 2017.

Docoral thesis guidance and supervision
Ph.D. thesis registered (Most Recent First)


          1. K. Madasamy (18111282011001). Entomopathogenic Fungi - Strain Improvement and Utilized for Pest Management (Date of commencement: 10.01.2018).

          2. G. Petchidurai (17211282011029). Marine macro algal tannins as Biopesticides for cotton pest management (Prroved date: 10.8.2017).

          3. M. Madasamy (Reg. No. 17211282011018). Bionanoparticles for pest control. (Approved date: 10th August 2017).

          4. S. Elango (Reg. No. 12337). Marine algal tannins for Spodotpera ltira (Fab.) Management (Commenced on June 29, 2016) (Part-time).

          5. A.Geovigila (Reg. No. 12492). Preliminary phytochemistry and biological utilization of Cinnamonum iners Rein. (Commenced on 23rd January 2014).


Ph.D. thesis Award (Most Recent First)


  1. S. Anbu Radhika (Reg. No. 10569). Synergistic effect of pesticides, biopesticides and biosilver nanoparticles against cotton pest. Manonmaniam Sundaranar University, Tamil Nadu (Awarded 13th April 2017)

  2. S. Rajesh (Reg. No. 4341). 2015. Marine macroalgal extracts, liquid-formulations and biomimetic silver nanoparticles against cotton phytopathogens. Manonmaniam Sundaranar University, Tamil Nadu (Awarded October 2015).

  3. A. Parveen Sulthana (Reg. No. 3435). 2014 (co-guide). Terminalia chebula bioactive tannins-extraction, isolation, hydrolyzation and screening its bioactivity. Manonmaniam Sundaranar University, Tamil Nadu (Awarded December 2014)

  4. P. Kombiah (Reg.No. 3177). 2014. Formulation and evaluation of plant-based insecticides on Odiporus longicollis (Oliver) (Coleoptera: Curculonidae). Manonmaniam Sundaranar University, Tamil Nadu (Awarded 17/11/2014).

  5. A. Asharaja (Reg.No. 7843). 2014. Biological, physiological and biochemical impact evaluation of algal seaweeds on Dysdercus cingulatus (Fab.). Manonmaniam Sundaranar University, Tamil Nadu (Awarded May, 2014).

  6. Majesh Tomson (Reg. No. 4343). 2014. Bioefficacy of reduviid predator, Rhynocoris fuscipes (Fab.) and Beauveria bassiana Bolosmo Vuillimin toxin and its biosilver nanoparticles against cotton pests. Manonmaniam Sundaranar University, Tamil Nadu (Awarded February 2014).

  7. S.Kalidas (Reg. No. 4342). 2013. Augmentative biological control potential evaluation of cotton pests using reduviid Rhynocoris longifrons. Manonmaniam Sundaranar University, Tamil Nadu (Awarded July 2013).

  8. Vinoth Kanna (Reg.No. 3176). 2012. Reduviid toxin analysis. Manonmaniam Sundaranar University, Tamil Nadu (Awarded).

  9. J. Francis Borgio (Reg. No. 2093). 2010. Metarhizium anisopliae on cotton bug Dysdercus cingulatus management. Manonmaniam Sundaranar University, Tamil Nadu (Awarded).

  10. S. Karthick Raja Namasivayam (Reg. No. 1510). 2007. Studies on Microbial diversity of Groundnut, pests and natural enemies. 2005. Manonmaniam Sundaranar University, Tamil Nadu (Awarded).

  11. F. Brisca Renuga (Reg.No. 1547). 2011. Toxicological, immunological, and biochemical aspects of chosen medicinally important Rutaceaea and Compositae plants against Spodoptera litura (Fab.) (Lepidoptera : Noctuidae) Manonmaniam Sundaranar University, Tamil Nadu (Awarded).

  12. S. Muthukumar (Reg. No. 2610). 2011. Rhynocoris marginatus (Fab.) salivary venom – characterization and its zootoxic effects on Spodoptera litura (Fab.) Manonmaniam Sundaranar University, Tamil Nadu (Awarded).

  13. S. Sujatha (Reg. No. 2284). 2010. Temperature – dependent biology, bio-efficacy and its impacts on bacterial growth, macromolecular and antibody profiles of two reduviids. Manonmaniam Sundaranar University, Tamil Nadu (Awarded).

  14. S. Parvathi (Reg. No. 1630). 2010. Studies on the predatory spider fauna in groundnut ecosystem. Manonmaniam Sundaranar University, Tamil Nadu (Awarded).

  15. R. Balasubramanian (Reg.No. 2138). 2009. Natural, factitious host and oligidic diets on bioecology, bacterial, molecular and antibody profiles of Rhynocoris marginatus (Fab.). Manonmaniam Sundaranar University, Tamil Nadu (Awarded).

  16. G. Raju (Reg. No. 1306). 2004. Studies on Pest and natural enemy’s complex of groundnut in Tirunelveli and Thoothukudi districts. Manonmaniam Sundaranar University, Tamil Nadu (Awarded).

  17. C. Ravi (Reg. No. 1333). 2004. Integration of chosen reduviids and plant products on groundnut pest management. Manonmaniam Sundaranar University, Tamil Nadu (Awarded)

  18. P. Selvaraj (Reg.No.1169). 2002. Ecdysone mimics of ferns constituents for Helicoverpa armigera Hubner and Spodoptera litura (Fabricius) control. Manonmaniam Sundaranar University, Tamil Nadu (Awarded).

  19. M. G. Paulraj (Reg.No.8736). 2001. Integration of plant products and inter crops in groundnut pest management. Bharadhidasn University, Trichy, Tamil Nadu (Awarded).


M. Phil. theses


  1. Biocontrol efficacy of chosen plant products on Corcyra cephalonica Stainton, a stored groundnut pest. 2000. Plant products in groundnut storage pest control.




  1. Safety of chosen bio-pesticides on reduviid predator Rhynocoris marginatus Fab. 2000. Biosafety of bio-pesticides on reduviids.




  1. Tri-tropic interaction of groundnut – groundnut pests - reduviid predator. 2001. Groundnut IPM. 2001.




  1. Artificial diets on the biology and behavior of Rhynocoris marginatus (Fab.).2001. Mass rearing of reduviids.




  1. Artificial diet for reduviids rearing. 2002. Modulation of Corcyra cephalonica Stainton diets on the rearing of Rhynocoris marginatus (Fab.). Mass rearing of reduviids.




  1. Artificial diet for reduviids predatory behaviour. 2003. Mass rearing of reduviids.




  1. Suitability of groundnut pests on the laboratory rearing of Rhynocoris marginatus (Fab.).2003. Mass rearing of reduviids.




  1. Redescription, biology and venom analyses of Catamiarus previpennis Servil. 2004.




  1. Redescription of chosen harpectorine and catamiarus species of reduviids. 2004.




  1. Preys influence on predatory behaviour, bioefficay, macromolecule, gut and salivary gland enzyme profile of two reduviid predators. (2005).




  1. Macromolecules and kairomones of chosen cotton pests on ethology, haematology and macromolecular profile of Rhynocoris marginatus (Fab.) (2005).




  1. Polymorphism on the biology, biological control potential, molecular profile of Rhynocoris marginatus (Fab.) – June 2006.




  1. Compatibility of entomopathogenic fungi Metarhizium anisophilae (Metschnikof) Sorokin and Rhynocoris marginatus (Fab.) - June 2006.




  1. Antifeedant and insecticidal activity of two Tephrosia seeds on Spodoptera litura (Fab.) - June 2007.




  1. Bioecology of Dysdercus cingulatus (Fab.) (Hemiptera: Pyrrhocoridae). 2007.




  1. Studies on polymorphism of Dysdercus cingulatus (Fab.) - June 2007.




  1. UV-C radiation on the biology, protein and DNA content of Dysdercus cingulatus (Fab.) - June 2007.




  1. Insecticididal, ovipositional and ovicidial efficacy of a seaweed, Sargassum tenerrimum (J. Agardh) extracts on Dysdercus cingulatus (Fab.) (Hemiptera: Pyrrhocoridae) - June 2008.




  1. Nymphicidal and ovicidal effect of sea weed Padina pavonica (Linnaeus) on cotton pest Dysdercus cingulatus (FAB.) (Hemiptera: Pyrrhocoridae) - June 2008.




  1. Impact of salinity on the bioecology of Dysdercus cingulatus (Fab.) (Hemiptera: Pyrrhocoridae). - June 2008.




  1. Water hyacinth Phyto – entomophathogens impacts on pathogenecity, enzymes and polypeptide profile of grasshopper Gesonula punctifrons – June 2010.




  1. Biocontrol potential of entomopathogenic fungus, entomophagous predator, dipteran phoridae parasitoid and SAULCA 3EC against Pericallia ricini (Fab.) larvae- June-2013




  1. Biological trats and economics of eri silkworm Samia ricini Boisduval (Lepidoptera: Saturnidae) in relation to larval strains- June 2014




  1. In vitro pediclocidal activity of Alo vera gel extracts against Pediculus humanus capitis – June 2014




  1. Liquifiedfly ash incorporated mulberry leaves on the growth and life traits ofsilkworm (Bombyx moriL.) (Bombicidae). June 2017.



M.Sc. Dissertations


  1. Mass rearing, stage preference and host preference of a reduviid predator Rhynocoris marginatus Fab. on a polyphagous pest Spodoptera litura (Fab.) . 1993. Predators in IPM.




  1. Assessing the biocontrol potential of Rhinocoris kumarii Ambrose and Livingstone on Spodoptera litura (Fab.), a polyphagous pest. 1993. Predators in IPM.




  1. Antifeedant effect of chosen plant products to the polyphagous pest Spodoptera litura (Fab.) . 1996. Plant products in IPM.




  1. Anti-diabetic effect of Gymnema sylvestre Retz leaf extract on the serum and tissue protein in alloxan diabetic albino rats. 1996. Clinical biochemistry.




  1. Impact of Murraya koenigi (Lin) Spreng leaf extract on serum and tissue protein profile and animal growth in alloxan induced diabetic rats. 1996. Clinical biochemistry.




  1. Effect of monocrotophos and neem oil mixture on the chosen insect pests incidence and yield in groundnut and black gram inter- cropping system. 1996. Pesticide and plant products in groundnut IPM.




  1. Intercrops and plant products on the chosen groundnut pest incidence and their control. 1997. IPM in groundnut.




  1. Effect of Pongamia glabra Veat and Vitex negundo Linn. on physiological and biochemical bio-assay mechanism of Spodoptera litura (Fab.). 1997. Plant products in pest control.




  1. Influence of chosen plant products on the biochemical and physiological bio-assay of Spodoptera litura (Fab.). 1997. Plant products in pest control.




  1. Screening of carmine spider mit Tetranychus cinnabainus Boistral resistance variety in okra. 1998. Pest resistant variety.




  1. Efficacy of three Vitex spp. On Corcyra cephalonica Stainton of stored groundnut. 1998. Plant products in stored groundnut pest management.




  1. Bio-efficacy of botanicals on the carbohydrate and lipid metabolism of Spodoptera litura (Fab.). 1998. Plant products in pest control.




  1. Efficacy of Coleus ambonicus Lour crude extracts on a pest Spodoptera litura (Fab.) and its predator Rhynocoris marginatus Fab.1999. Plant products in pest control and its biosafety.




  1. Growth promoting effects of ferns on Bombyx mori NB4 x D2. 2000. Plants on insect growth.




  1. Corcyra cephalonica Stainton dietary components on the biology of Rhynocoris marginatus Fab. 2000. Mass rearing of reduviids.




  1. Impact of NPV (s) on the mortality, biology and haemogram of Rhynocoris marginatus Fab. 2000. Biosafty of NPV (s) on reduviids.




  1. Effect of chosen plant products on Spodoptera litura (Fab.) and its predator Rhynocoris marginatus Fab. 1999. Plant products in pest control and its biosafety.




  1. Laboratory rearing and biological control potential of Rhynocoris fuscipes on three groundnut pest. 2001. Reduviids in groundnut pest management.




  1. Impact of NPV (S) on Spodoptera litura (Fab.) and Rhinopcoris marginatus (Fab.) mortality and gut microflora. 2001. Bio-pesticides on pest and reduviid predator.




  1. Artificial diet on the behaviour and biology of Rhinopcoris marginatus (Fab.). 2002. Reduviid rearing.




  1. Impact of plant biopesticides on the pests and reduviid predator gut flora. 2003. Biopesticides on pests and natural enemies.




  1. Studies on Rhynocoris marginatus (Fab.) venom. Biochemistry of reduviid venom (2004).




  1. Ovicidal and ovipositional effect of Pedlium murex Linn. (Pedaliaceae) root on Dysdercus cingulatus (Fab.) (Hemiptera : Pyrrhocoridae). 2005. Plant products in pest control




  1. Insecticidal and antifeedant effect of Padalium murex Linn. on Spodoptera litura (Fab.) (Lepidoptera: Noctuidae) 2005. Plant products in pest control

  2. Bioecology of red cotton bug Dysdercus cingulatus (Fab.) (Hemiptera: Pyrrhocoridae) – May 2006.

  3. Impact of entomopathogenic fungi Metarhizium anisophilae (Metschnikof) Sorokin on Acanthaspis pedestris – May 2006.

  4. Impact of microbes on Spodoptera litura and its natural enemy Rhynocoris marginatus (Fab.) – May 2007.

  5. Pest kairomones on the feeding behaviour of Rhynocoris marginatus (Fab.) – May 2007.

  6. Plant extracts on Spodoptera litura (Fab.) - May 2007.

  7. Natural and chemically mediated feeding behaviour of Rhynocoris kumarii Ambrose and Livingstone (Heteroptera: Reduviidae: Harpoctorinae) - on chosen pests - May 2007.

  8. Viral, bacterial and fungal insecticides on Spodoptera litura (Fab.) (Lepidoptera) and its natural enemy Rhynocoris kumarii Ambrose and Livingstone (Heteroptera) - May 2007.

  9. Indigenous plant based insecticide formulation for Spodoptera litura (Fab.) management - May 2008.

  10. Preparation of emulsifiable concentrations (ECs) of castor oil and its impact on some cotton pest - May 2008.

  11. Prey deprivation on the behaviour and bioefficay of Catamirus brevipennis (Heteroptera: Reduviidae: Pieratina) - May 2008.

  12. Impact of two pathogenic fungal metabolites on mortality, biology and enzymology of Dysdercus cingulatus (Fab.) - May 2009.

  13. A novel extra cellular synthesis of silver nanoparticles using weed, Lantana wightiana Willd - May 2009.

  14. Bioefficay of reduviid predator and potential on mealy bug - May 2009.

  15. Grasshopper, weevils and aphid herbivory impact on water hyacinth - May 2010.

  16. Synthesis and evaluation of silver nano particles using Pongamia glabra and its antifungal activity against Rhizopus nigricans on cotton - May 2010.

  17. Biological synthesis of silver nanoparticle using Vernonia cinerea to control Xanthomonas campestris of cotton - May 2010.

  18. UV-C exposure to egg, nymphs and adults on the biology of Dysdercus cingulatus. – May 2011.

  19. Venomous saliva of Rhynocoris marginatus: FT-IR characterization, utilization, and cytotoxic impacts - May 2011.

  20. Host and prey influence on the biology of Antilochus coqueberti (Fab.) (Heteroptera : Pyrrhocoridae) - May 2011.

  21. Effect of biosilver nanoparticles on Spodoptera litura: olfactory response, energy budget, digestive and detoxification enzymes profile – April 2012.

  22. Insecticidal, morphological; haemolymph and fat body protein profile of Spodoptera litura influenced by seaweed-based silver bionanoparticles - April 2012.

  23. Biocontrol potential evaluation of Rhynocoris marginatus against two hemipteran pests of cotton and cowpea-April 2013

  24. Bioefficiancy of Marine algae- based 40 EC Formulation (CALPa) and Neem oil against Achae janata (Linn.) (Lepidoptera: Noctuidae)-April 2013

  25. Nymphal development of Rhynocoris albopilosus (Fab.) reared with meat- based artificial diet and evaluate the bioefficiancy aganst Dysdercus cingulatus and Myllocerous maculosus- April 2014

  26. Seaweed formulation on Periplanata americana management- April 2014

  27. Isecticidal activity of fly ash and eri silkworm fecal pellet ash-based liqid formlation on Achea janata –March 2015.

  28. Isecticidal activity of fly ash and eri silkworm fecal pellet ash-based liqid formlation on Phenococcus solenopsis - March 2015.

  29. Bio-efficiany of pungam oil- based silver and gold nano ions liquid against hairy caterpillar Porthesia scintillans Walker (Lepidoptera: Lymentridae)- March 2016

  30. Impact of pungam oil- based silver and gold nanoparticles against hairy caterpillar Pericallia ricini Walker (Lepidoptera: Arctiidae)- March 2016

  31. Impact of Caulerpa scalpelliformis selected fractions on the chosen economically important pests. April 2017.

  32. Impact of selected fractions of Caulerpa scalpelliformis on Porthesia scintillans (Walker). April 2017.


B. Sc. Dissertations Guidance and Supervision


  1. Groundnut pests management practices, pest incidents and production analysis in Sathankulam and Rathapuram taluk cultivars- April 2011




  1. Biosafety evalution of Tephrosia purpurea stem based formulation (TELP3% EC) against Rhynocoris Reduviids- April 2012




  1. Biological utilization of marine algae, Caulepra scalpelliniformis (R. Brown ex Turner) C. agardh and Chaetomorpha crassa (C. Agardh) Kutzing against Callosobrachus maculatus (Fab.) (Coleoptera: Bruchidae) of cowpea- April 2013




  1. Bioefficacy of Gracilaria corticata and Sargassum wightii dry powder against Callosobrucus maculatus (Fab.) (Coeleoptera: Bruchidae) of cowpea- April 2015




  1. Fortification of coal fly ash and water hyacinth leaf ash based liquid on growth of Eri Silkworm- April 2016
Transfer of technology to farmers

1. 19951996 - Integration of intercrops, plant products and pesticide in groundnut pest management at Regunathapuram- 622 302, Pudukottai district, Tamil Nadu, India.
2. 1997  Integration of intercrops and plant products in groundnut pest management at Palayam-621107, Perambaloor district, Tamil Nadu
3. 19971998  Integration of plant products and reduviid predator in groundnut pest management at Elathagiri-635 108, Dharmapuri district, Tamil Nadu


  1. 1998  Integration of plant products, reduviid predator and intercrops in groundnut pest management at Nagamangalam-620 012, Trichy district, Tamil Nadu




  1. 1998 2000  Integration of plant products, reduviid predator and intercrops in groundnut pest management at Perumalnagar-627 151, Tirunelveli district, Tamil Nadu




  1. 2001 2012. Integration of plant products, and reduviid predator in groundnut pest management at Sakkamalpuram, Tuticorin district, Tamil Nadu.




  1. 2003–2004. Microbial pesticides on groundnut production at Vallam, Tirunelveli district, Tamil Nadu




  1. 2005 – 2006. Metarhizium anisophilae (Metschnikof) Sorokin and reduviid predator on groundnut production. Mannarpuram, Tirunelveli district, Tamil Nadu




  1. 2006 – 2007. Metarhizium anisophilae (Metschnikof) Sorokin and reduviid predator on groundnut production. Oorampattti, Virudhunager district, Tamil Nadu




  1. 2011-2011. Rhynocoris fuscipes and Rhynocoris longifrons on cotton production. Kothankulam, Virudunagar district, Tamil Nadu.




  1. 2011-2012. Rhynocoris longifrons on cotton production. K. Duraiswamiapuram Thoothukudi District, Tamil Nadu.




  1. 2012-2013- EC formulation of seaweeds for cotton pest and disease management Kuppanapuram, Tirunelveli district, Tamil Nadu

Farmers training programme (FTP) conducted


    1. Veeravanallur a village in Tirunelveli District, Tamil Nadu, India on 21.12.2002 in association with SWAN Trust on natural enemies and threshold levels of various pests in different agroecosystem.

    2. Palayamkottai for agribusiness on 29.3.2003 for IPM components like predators, botanicals, microbial insecticides, light traps, pheromone traps and organic manure people and farmers.




    1. Melathidoor and Kezha Omanaloor, Tirunelveli agriculture zone, Tirunelveli districts, Tamil Nadu on “Plants and their insecticidal properties”.




    1. Kezha Omanaloor Tirunelveli agriculture zone, Tirunelveli districts, Tamil Nadu for on men and women farmers on light trap, plant-based insecticides, predators and parasites, and pathogens.




    1. Thembavani Thottam, Palayamkottai Tirunelveli agriculture zone, Tirunelveli districts, Tamil Nadu, India on 6.3.2003 on “Natural Agriclutre”.




    1. Ramasamiapuram, Tirunelveli agriculture zone, Tirunelveli districts on 22.10.2005 for men and women farmers on light trap, plant-based insecticides, predators and parasites, and pathogens.




    1. Kadambankulam, Tiruneveli district on 27.1.2008 for farmers on rice pest management.




    1. Keeranaur, Karambai - Tiruneveli district on 17.2.2008 for 44 farmers (8 women farmers) on rice IPM.




    1. Keelakaripatti, Tirunelveli district Pest management 23 women farmers




    1. Biotechnology in agriculture – 22.08.2009 to 23.08.2009 at Crop Protection Research Centre, St. Xavier’s College, Palayamkottai for Kadambankulam village farmers along with J. Suresh, Asst. Manger from NABARD, Mr. S. Veluchamy, Joint Director, District Agriculture Office, Playamkottai, and M. Rajendran of Biocontrol Laboratory, Govt. Agriculture Office, Palaymkottai.




    1. Ecofriendly pest management - Courtalaperi on 2nd October 2009 for farmers and their children’s along with Dr. John Britto of Department of Plant Biology and Plant Biotechnology, SXC, Palayamkottai, Mr. J. Parameshwaran from Syngenta Company and Dr. N. Murugesan form Cotton Research Station, Srivalliputhour.




    1. Pest and disease management for your crops - Ramaswamiyapuram on 4th October 9, 2009


Student training Programme Conducted


      1. Bio-inputs for agriculture – Under graduate students along with Dr. Y.S. Johnson Thangaraj Edward from Rice Research Station, Ambasamuthram and Dr. S. Jeyaraj Nelson of Killikulam Agriculture College and Research Institute

      2. Why Nano-Biotechnology? for Botany, Chemistry, Maths, Physices, and Zoology students on 12/12/2014

      3. Basic biotechnology – 50 UG students (10 each from Department of Botany, Chemistry, Maths, Physices and Zoology) from 1st may to 5th May, 2015.


Staff training programme Conducted

    1. DST sponsored short term faculty training programme (STTP) on Bionanomaterials for pest and disease management from 14 – 30, May, 2013.

    2. DBT sponsohored one day Workshop on UV-visisble spectrophotometer and potentiometer for Botany, Chemistry, Maths, Physices, and Zoology department’s members of the staff. On 13/12/2014

    3. SPSS for faculties and research scholars – 8-9th January 2018

    4. Second short term treaining in Biostitistics – 9th to 13th January 2018.


Manuals prepred For the farmers (In Tamil Language)

  1. Sahayaraj, K. Intergrated Pest Management. 21.1.22002. In Tamil. Pp. 07.

  2. Sahayaraj, K. Biopesticdes. 29.03.2003. In Tamil. Pp. 12.

  3. Sahaayraj, K. Non-hazardous pest management. 06.03.2005. In Tamil. Pp. 10.

  4. Sahayaraj, K. Rice pests and disease management. 26.01.2008. In Tamil. Pp 20.

  5. Selvaraj, P., Sahayaraj, K. and Murugesan, N. 2009. For your crops --------natural method of pest management. Tamil, PP. 30.



research of Interest: Ecofreindly Pest and Disease management and Bionanoparticles


My research centre is directed towards two areas of interest: 1) ecofriendly pest and disease management, and 2) synthesis, characterization of bioreduced nanoparticles and utilize for agricutlrure purpose. My primary research interests are in the interactions that occur between reduviid predators and their hosts.  I mastered all aspects of biological control strategies using Biopesticides, microbial agents, predators especially for lepidotperan, hemipteran and dipteran pests of economic importance. Specifically, I study the biochemistry of reduviid salivary venom and its biochemical, cellular impacts on their host insects.

For the past 30-years, my attention has been focused on five areas: 1) mass production strategy for reduviid predators with their natural as well as factitious hosts or developing suitable artificial diets, 2) chemical as well as molecular interaction of reduviids and their hosts, 3) acquisition of cold and heat tolerance in reduviid predators, particularly in relation to the influence of host species, 4) biochemical and molecular analysis of reduviid salivary venom and finding out their  mode of action of reduviid venoms, and 5) utility value of botanicals (terrestrial and marine weeds) and microbial pathogens (including their nanomaterials) and their silver and goald nanaomarterial for insect pests and phytopathogens.

A new direction for my research laboratory has been investigations of development of botanical (terrestrial as marine plants) formulations; record their efficacy, popularize them among farmers and bring them out to the market.  Presently, I am synthesizing silver nanomaterials, characterizing them and finding out their possible impacts on insect pests and phytopathogens.  My lab is aiming to minimize synthetic insecticides by incorporating botanical oils at different proportions.

Biography of Dr.K. Sahayaraj

Sahayaraj Kitherian, Ph.D., D.Sc., is an Associate Professor and Head at the Department of Zoology, St. Xavier’s College of Manonmaniam Sundaranar University and a Director in the Crop Protection Research Centre in the same institution since the June 1998. Sahayaraj Kitherian received his undergraduate, post-graduate and doctoral educations at the Madurai Kamaraj University, India. Prior to his current position, he was a lecturer in the St. Joseph’s College, Trichy from 1993 to 1998. He previously held appointment at the Arulanadar College, Madurai, India.



Over the past 30 years, Dr. Sahayaraj’s research efforts have been dedicated to multidisciplinary, integrated approaches to understanding how reduviids distribute and diversify in various ecosystems, and how their adaptive characters can be applied to pest management, especially through biointensive pest management. Dr. Sahayaraj has over 200 scientific papers published. He is an internationally recognized expert in many areas of advanced entomology including insect chemical ecology, artificial diet formulation, biopesticide formulation, biointensitve integrated pest management, bionanomaterial, and insect molecular biology. He is a regularly sought after and requested lecturer at the majority of science colleges at Tamil Nadu, India. Dr. Sahayaraj organized four international conferences (BIOCICON) and seven more national conferences. Dr. Sahayaraj is the Editor–in-Chief of the Journal of Biopesticides and also Editor for more than 10 reputed peer-reviewed journals. Reviewer of more than 15 journals, particularly Entomotropica, journal of Insects, Pest Management Sciences, Pesticide Biochemistry and Phytochemistry, Photobiology B: Biology etc. Recent publications of Dr. Sahayaraj deals with essential oils, seaweeds, reduviid predators, fungi for pest management; culture, bioefficacy and venom biochemistry of reduviid predators; bionanomaterial synthesis, characterization and biological application. He has been honored with several awards from regional (Best Researcher in Science, St. Xavier’s College), national (Scientists of the year–2008, NESA, New Delhi; Young Achievers Award-2010 by SADHNA, Solan; Bharat Seva Ratan Gold Medal Award-2014 by GEPRA, New Delhi; Bharat Seven Rethan Gold Medel by GEPBRA, New Delhi) and international agencies (Hyoshi Environmentalist Award, Japan; YOUNG IOBC travel grant award; Excellent Scholar Award by XIX International Botanical Congress, China). Dr. Sahayaraj has operated thirteen research projects funded by national (DST, DBT, CSIR, MOEs, MEFs) and international (IFS) funding agencies. He has also received grants on several occasions for conducting farmers’ and students’ training programmes and international conference on Biopesticides and international travel grant from TWAS, CSIR, DST, TNSCST, MES, ICMR, ICAR and UGC. He has guided and supervised 19 Ph.D. scholars and supervising four researchers. He has been regularly transferring the laboratory finding to the neighborhood farmers and offering guidance to them on BIPM. For a better understanding and pursuance by farmers, he brought out 05 manuals/books in his regional language.


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