Prasannakumar, N.R

Specialisation:

IPM, Insect Vectors, Climate Change and Remote sensing in Entomology

Qualification:

MSc (Ag), PhD, Postdoc (UK)

Experience: 10 years

Assessed insecticide resistance in T. absoluta from different field populations from South India
Identified involvement of four new CYP genes in governing insecticide resistance in T. absoluta
Studied RNAi-mediated control of T. absoluta through exogenously applied dsRNA delivery on tomato.
Studied virus-vector –host-endosymbiont interactions and identified protein receptors in Bemisia tabaci that interact with Tomato leaf curl Bangalore virus (ToLCBV) coat protein through application of infusion Smart technology and Y2H
Plant based EC (Emulsifiable concentrate) formulation developed from Annona squamosa having very significant mortality of sucking pests particularly, aphids

Selected Publication (full publication list can be accessed at https://scholar.google.co.in/citations?user=TywsplcAAAAJ&hl=en)

N.R. Prasannakumar *, N. Jyothi, S. Saroja, A.N. Lokesha (2023) Insecticidal properties of Ocimum basilicum and Mentha piperita essential oils against South American Tomato moth, Phthorimaea absoluta (Meyrick) (Lepidoptera: Gelichiidae) Pesticide Biochemistry and Physiology 190 (2023) 105329
Prasannakumar NR, Jyothi N, Prasadbabu K, Ramkumar G, Asokan R, Saroja S, Sridhar V (2023). Evidence-based insecticide resistance in South American tomato leaf miner, Phthorimaea absoluta (Meyrick) under laboratory selection. Bulletin of Entomological Research 1–11. https://doi.org/10.1017/ S0007485323000081
Ramkumar G, Asokan R, Prasannakumar NR, Kariyanna B, Karthi S, Alwahibi MS, Elshikh MS, Abdel-Megeed A, Ghaith A, Senthil-Nathan S, Kalaivani K, Hunter WB and Krutmuang P (2021) RNA Interference Suppression of v-ATPase B and Juvenile Hormone Binding Protein Genes Through Topically Applied dsRNA on Tomato Leaves: Developing Biopesticides to Control the South American Pinworm, Tuta absoluta (Lepidoptera: Gelechiidae). Front. Physiol. 12:742871. doi: 10.3389/fphys.2021.742871.
Prasannakumar, N. R*., Rao, V. K., Jyothi, N., Saroja, S., Lokesha, A. N., & Ramkumar, G. (2022). Evaluation of insecticidal properties of botanicals for sustainable management of sucking pests of horticultural crops. Journal of Applied Entomology, 00, 1–11. https://doi. org/10.1111/jen.13092
N. R. Prasannakumar* & M. N. Maruthi. (2021). Understanding the interactions among the crop plants, a virus, insect vector whiteflies and their endosymbionts Phytoparasitica. 49, 739–750. https://doi.org/10.1007/s12600-021-00905-z. NAAS 7.15
Prasannakumar, N.R*., Maruthi, M.N. (2021). Identification of whitefly (Bemisia tabaci) proteins interacting with Tomato leaf curl Bangalore virus coat protein gene using Y2H system. International Journal of Tropical Insect Science. https://doi.org/10.1007/s42690-021-00561-0
N. R. Prasannakumar, Venkataravanappa, R.R. Rachana, V. Sridhar, M.R. Govindappa, M.P. Basavarajappa, k.j. Hemalatha, D.S. Aswathnarayana, M. Krishna reddy and D.K. Samuel (2021). Status of the outbreak of Thrips parvispinus (Karny) on chilli in Karnataka. Pest Management in Horticultural Ecosystems 27 (2):286-290.
N.R. Prasannakumar, N. Jyothi, G. Ramkumar, R. Asokan and V. Sridhar (2021) Assessment of cross-resistance in South American tomato moth, Tuta absoluta ((Meyrick) (Lepidoptera: Gelechiidae). Pest Management in Horticultural Ecosystems 27 (2):265-269
V. Sridhar, R. R. Rachana, N. R. Prasannakumar, V. Venkataravanappa, K. Sireesha, D. Anitha Kumari, K. Madhavi Reddy, Onkara S. NAIK,P. Sree Chandana and M. Krishna Reddy (2021). Dominance of invasive species, Thrips parvispinus (Karny) over the existing chilli thrips, Scirtothrips dorsalis Hood on chilli in the southern states of India with a note on its host range: A likely case of species displacement. Pest Management in Horticultural Ecosystems 27 (2):132-136
N. R. Prasannakumar* & N. Jyothi, S. Saroja1 & G. Ram Kumar (2020). Relative toxicity and insecticide resistance of different field population of tomato leaf miner, Tuta absoluta (Meyrick) . International Journal of Tropical Insect science https://doi.org/10.1007/s42690-020-00334-1.
NR Prasannakumar*, BSR Prasad, PS Bhat (2020). Distribution pattern and sequential sampling plan for chilli thrips, Scirtothrips dorsalis Hood (Thripidae: Thysanoptera) International Journal of Tropical Insect Science, 40, 131–139
N.R. PRASANNAKUMAR*, N. JYOTHI, G. RAM KUMAR, S. SAROJA and V. SRIDHAR. (2020). Studies on outbreak of tomato pinworm, Tuta absoluta (Meyrick) in South India and its differential susceptibility to insecticides. Pest Management in Horticultural Ecosystems Vol. 26, No.1 pp 97-103.
N.R. PRASANNAKUMAR*, KESHAV RAO, V, S. SAROJA and N. JYOTHI (2020). Insecticidal properties of neem (Azadirachta indica), annona (Annona squamosa) and castor (Ricinus communis) seed extracts against tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae). Pest Management in Horticultural Ecosystems Vol. 26, No.2 pp 208-213

Recognitions

DST-SERB Overseas Postdoc Fellowship (visit to NRI, University of Greenwich, UK )
DST SERB Earlier Career Research Award
Dr. Vasantha Raj B David Young Scientist Award-2020
Prof TN Ananthakrishnan Young Scientist Award -2020-2021 with cash prize
Life member and Joint secretary to Association for Advancement of Pest Management in Horticultural Ecosystems (Journal – Pest Management in Horticultural Ecosystems) Dr. S. Guruprasad Pradhan Gold Medal for the best Ph.D Student in the discipline of Entomology in 51st Convocation held 15th Feb 2013 at IARI, New Delhi
IARI Senior Research Fellowship for Ph.D degree during Aug 2009-June-2012
American Springs and Pressings Fellowship from ASPEE during 2006-2008 for Msc (Ag)