Sanju Kunwar
I'm a dedicated plant research scientist with a deep passion for harnessing the power of science and technology to enhance the field of agriculture. I am an expert in the development of Integrated Pest Management (IPM) strategies aimed at combating diseases in vegetable and fruit crops, both within the greenhouse and field environment, for improved productivity.
I find great satisfaction in sharing my extensive applied knowledge and promoting agriculture research with different stakeholders.
10+ years of experience in leading and managing greenhouse and field trials aimed at managing bacterial and fungal diseases and screening vegetable crops for disease resistance in the field
Creative and self-motivated individual with easy integration in a multicultural environment with a unique combination of a detail-oriented mindset, driven personality, analytical skills, and proven ability to meet tight deadlines by working in a fast-paced work environment.
Excellent team player and strong builder of prolific collaborations, resulting in the development and maintenance of professional relationships with key opinion leaders at multiple organizations.
2015 - 2018, Ph. D
Plant Pathology Department
2013 - 2015, M.S.
Plant Pathology Department
2006 - 2011, BSc.
Purbanchal University
Britt, K., Kunwar, S., Redondo, A., Altschul, R., Arment, A., and Batuman, O. 2023. Novel insecticides for control of the Asian citrus psyllid (Diaphorina citri), vector of Huanglongbing disease in Florida citrus (equal contribution first author; manuscript in progress).
Kunwar, S., Redondo, A., Manker,D., Iott, M., Knobloch, T., Brunet, S., Dufour, J., and Batuman, O., 2023. New
Antimicrobials and Plant Defense Inducers for Managing Citrus Canker Disease. Frontiers in Agronomy (just accepted).
Batuman, O., Britt-Ugartemendia., K., Kunwar, S., Yilmaz, S., Fessler, L., Redondo, A., Chumachenko, K., Chakravarty. S., Wade., T. 2023. Phytopathology. The Use and Impact of Antibiotics in Plant Agriculture: A Review (just submitted).
Archer, L., Kunwar, S., Alferez, F., Batuman, O. and Albrecht, U., 2023. Trunk injection of oxytetracycline for
huanglongbing management in mature grapefruit and sweet orange trees. Phytopathology, 113(6), pp.1010-1021.
Kunwar, S., Redondo, A., Manker, D., Lott, M., Knobloch, T., Brunet, S., Dufour, J. and Batuman, O. 2023. Novel systemic acquired resistance (SAR) inducers for managing huanglongbing (citrus greening) and citrus canker
diseases. Acta Hortic. 1378, 133-142 <doi: 10.17660/ActaHortic.2023.1378.18>
<https://doi.org/10.17660/ActaHortic.2023.1378.18>
Bamazi, B., Banito, A., Ayisah, K.D., Sikirou, R., Paret, M.L., Kunwar, S., Kamde, K., Tchalla, P. and Sister-Love NA, A., 2022. Distribution and Incidence of Tomato Bacterial Wilt Caused by Ralstonia solanacearum in the Central Region of Togo. Plant Health Progress, 23(2), pp.235-240.
Kunwar, S., Bamazi, B., Banito, A., Carter, M., Weinstein, S., Steidl, O., Hayes, M.M., Allen, C. and Paret, M., 2021. First Report of Bacterial Wilt Disease of Tomato, Pepper, and Gboma Caused by Ralstonia solanacearum Species Complex in Togo. Plant Disease, 105(2), p.484.
Fan, Q., Liao, Y.Y., Kunwar, S., Da Silva, S., Young, M., Santra, S., Minsavage, G.V., Freeman, J.H., Jones, J.B.
and Paret, M.L., 2021. Antibacterial effect of copper composites against Xanthomonas euvesicatoria. Crop Protection, 139, p.105366.
Pradhan, S., Babar, M., Bai, G., Khan J., Shahi, D., Avci, M., Guo, J., McBreen, J., Asseng,, S., Gezan, S., Baik, B-K., Blount, A., Harrison, S., Sapkota, S., Amand, P., Kunwar, S. 2020. Genetic dissection of heat-responsive physiological traits to improve adaptation and increase yield potential in soft winter wheat. BMC Genomics 21:315.
Kunwar, S., Hsu, Y-C., Lu S-F., and Hanson, P. 2019. Evaluation of bacterial wilt resistance sources for presence of major resistance QTLs Bwr-12 and Bwr-6, and as potential sources of new resistance. VI International Symposium on Tomato Diseases. (ISHS, Acta Horticulturae) <doi: 10.17660/ActaHortic.2021.1316.6>
Kunwar, S., Hsu, Y-C., Lu S-F., Wang, J-F., Jones, J. B., Hutton, S., Paret, M., Hanson, P. 2020. Characterization of tomato (Solanum lycopersicum) accessions for resistance to phylotype I and phylotype II strains of Ralstonia solanacearum species complex under high temperature. Plant Breeding. 139(2):389-401.
Kunwar, S., Iriarte, F., Fan, Q., da Silva, E. E., Ritchie, L., Nguyen, S. N., Freeman. H. J., Stall, S. R., Jones, J. B., Minsavage, V. G., Colee J., Scott J.W., Vallad, G.E., Zipfel, C., Horvath, D., Westwood, J., Hutton, S.F., and Paret, M. L. 2018. Transgenic expression of EFR and Bs2 genes for field management of bacterial wilt and bacterial spot of tomato. Phytopathology, 108:1402-1411
Kunwar, S., Kefialew Y., Abate D., Ayalew A., Colee, J., Ritchie, L., Olson, S. M., and Paret, M.L. 2018. Direct antifungal activity of tiadinil, a systemic acquired resistance inducer, and thymol formulations on Stagonosporopsis citrulli and control of watermelon gummy stem blight. Journal of Gen. Plant Path. 84:284-295 (equal contribution 1st author).
Kunwar, S., Paret, M.L., Freeman, J.H., Ritchie, L., Olson, S.M., Colee, J. and Jones, J.B., 2017. Foliar Applications of Acibenzolar-S-Methyl Negatively Affect the Yield of Grafted Tomatoes in Fields Infested with Ralstonia
solanacearum. Plant Disease, 101:890-894.
Khatri, K., Kunwar, S., Barocco, R.L., Dufault, N. 2017. Monitoring Fungicide Sensitivity Levels and Mycelial Compatibility Groupings of S. rolfsii from Florida Peanut Fields. Peanut Science.
Dari, B., Sihi, D., Bal, S.K., Kunwar, S. 2017. Performance of direct-seeded rice under various dates of sowing and
irrigation regimes in semi-arid region of India. Paddy and Water Env. 15:395-401.
Kunwar, S., Paret, M.L., Olson, S.M., Ritchie, L., Rich, J.R., Freeman, J. and McAvoy, T. 2015. Grafting using rootstocks with resistance to Ralstonia solanacearum against Meloidogyne incognita in tomato production. Plant Disease. 99:119-124.
Ocsoy, I., Paret, M. L., Ocsoy, M. A., Kunwar, S., Chen, T., You, M., & Tan, W. 2013. Nanotechnology in plant disease
management: DNA-directed silver nanoparticles on graphene oxide as an antibacterial against Xanthomonas perforans. Acs Nano.7: 8972-8980.
Kunwar, S., Batuman, O., Redondo, A., Manker, D., Iott, M., Knobloch, T., Brunet, S., and Dufour, J. 2024. Defending Citrus Orchards: Novel Approaches to HLB and Canker Management Using New Plant Defense Inducers. VII International Research Conference on Huanglongbing. Riverside, California, USA (to be held March 26-29).
Kunwar, S., Redondo, A., and Batuman, O., 2023. New Antimicrobials and Plant Defense Inducers for Managing Citrus Canker Disease. 18th Biennial Florida Phytopathological Society Meeting. South Florida Research and Education Center, Immokalee, University of Florida, USA. (Poster presentation).
Kunwar, S., Redondo, A., Archer, L., Alferez, F., Albrecht, Ute, Batuman, O. 2023. Injecting Oxytetracycline: An Effective Approach for Managing HLB Disease in Citrus. 18th Biennial Florida Phytopathological Society Meeting. South Florida Research and Education Center, Immokalee, University of Florida, USA. (Poster presentation).
Kunwar, S., Redondo, A. and Batuman, O., 2022, November. Copper-alternative tools to manage citrus canker (Xanthomonas citri subsp. citri) in Florida Groves. In Phytopathology, Vol. 112, No. 11, pp. 76-76. American Phytopathological Society. (Poster Presentation)
Ojo, I., Vijayakumar, V., Ampatzidis, Y., Batuman, O., Kunwar, S., Albrecht, U., Archer, L., Alferez, F., Bayabil, H. and Schueller, J.K., 2022. An Automated Delivery System for Therapeutic Materials Using Needle-Based Trunk Injection to
Treat HLB Affected Citrus. In 2022 ASABE Annual International Meeting (p. 1). American Society of Agricultural and Biological Engineers.
S. Kunwar, M. L. Paret, J. Jones, S. F. Hutton, D. Horvath and C. Allen. 2023. Expressing Arabidopsis EFR in a large-fruited tomato cultivar increases marketable yield and confers broad-spectrum bacterial wilt resistance by restricting pathogen colonization. Plant Biology Worldwide Summit July 19-23. (Virtual Oral Presentation; Invited Speaker)
S. Kunwar, M. L. Paret, S. F. Hutton and C. Allen. 2020. Understanding bacterial wilt resistance in transgenic tomato plants expressing the EFR Pattern Recognition Receptor. Plant Health Meeting, Denver, CO, USA. Oral presentation (virtual meeting)
Smeda, J., Kunwar, S., Paret, M., Vallad, G.E. and Hutton, S.F., 2020, August. Pieces of the Puzzle: In Pursuit of Bacterial Wilt Resistance in Tomato. In 2020 ASHS Annual Conference.
S. Kunwar., Hsu, Y-C., Lu S-F., Wang, J-F., Jones, J. B., Hutton, S., Paret, M., Hanson, P. 2019. Characterization of tomato (Solanum lycopersicum) accessions for resistance to phylotype I and phylotype II strains of Ralstonia solanacearum species complex under high temperature. 2019. Plant Health Meeting, Cleveland, OH, USA. (Poster presentation)
S. Kunwar., Hsu, Y-C., Lu S-F., Wang, J-F., Jones, J. B., Hutton, S., Paret, M., Hanson, P. 2019. Distribution of Bacterial Wilt Resistance QTLs in a Global Set of Resistant Tomato Lines and Their Disease Reaction Against Phylotype I and
Phylotype II Strain of Ralstonia spp. 2019. Raper Symposium, University of Wisconsin-Madison, WI, USA. Oral presentation
Fan, Q., Liao, Y.Y., Kunwar, S., Young, M., Santra, S., Jones, J.B. and Paret, M.L., 2019, September. Managing bacterial spot of pepper caused by Xanthomonas euvesicatoria using novel copper-composites. In Phytopathology. Vol. 109,
No. 9. American Phytopathological Society. Kunwar, S., Yun-che, G. H., Lu, S., Hanson, P. 2019. Evaluating Bacterial Wilt Resistant Tomato Lines for Resistance QTLs and Their Disease Reaction Against Phylotypes I and II Strain of Ralstonia spp. Plant Health.
S. Kunwar, E. da Silva, F. B. Iriarte, L. Ritchie, D. Clark, J. H. Freeman, R. E. Stall, J. B. Jones, G. V. Minsavage Jr., C. Zipfel, D. M. Horvath, M. Paret, Q. Fan. 2018. Co-expression of Bs2 and EFR Genes in Tomato Provides Effective
Broad-spectrum Field Resistance Against Bacterial Wilt and Bacterial Spot of Tomato. International Congress of Plant Pathology (ICPP), Boston, MA, USA. (Invited Speaker)
Fan, Q., Kunwar, S., Young, M., Santra, S., Jones, J. B., & Paret, M. 2018. Novel Copper-Composites for Management of Bacterial Spot of Pepper Caused by Xanthomonas euvesicatoria, International Congress of Plant Pathology (ICPP), Boston, MA, USA. Oral Presentation
M. Paret, S. Kunwar, R. Sikirou, B. Agnassim, B. Adamou. Improving Knowledge of Farmers on Vegetable Plant Diseases and Management in West Africa. 2018. Workshop on Improving Nutrition and Food Security in Sub-Saharan Africa (presenting author). Poster presentation
S. Kunwar, F. Iriarte, Q. Fan, E. da Silva, L. Ritchie, S. Nguyen, J. Freeman, R. S. Stall, J. B. Jones, J. Minsavage, J.
Colee, C. Zipfel, D. Horvath, J. Westwood, J.W. Scott, G.E. Vallad, S.F. Hutton, and M.L. Paret. 2017. Transgenic expression of EFR and Bs2 genes for field management of bacterial wilt and bacterial spot of tomato. 31st Annual
Tomato Disease Workshop. Gulf Coast Research and Education Center, University of Florida. Florida, USA. Oral presentation.
S. Kunwar, E. da Silva, F. B. Iriarte, L. Ritchie, D. Clark, J. H. Freeman, R. E. Stall, J. B. Jones, G. V. Minsavage Jr., C. Zipfel, D. M. Horvath, M. Paret, Q. Fan. 2017. Managing bacterial wilt disease of tomato in open field conditions by
improving host resistance through transgenic approach. APS Annual Meeting, San Antonio, Texas, USA. (Poster presented by Qiurong Fan)
Q. Fan, S. Kunwar, M. Young, S. Santra, J. B. Jones, and M. L. Paret. 2017. Copper-based Nanomaterials for Management of Bacterial Spot on Pepper Caused by Xanthomonas euvesicatoria. Materials Innovation for Sustainable
Agriculture Center (MISA) Symp. (Poster)
S. Kunwar, E. da Silva, F. B. Iriarte, L. Ritchie, D. Clark, J. H. Freeman, R. E. Stall, J. B. Jones, G. V. Minsavage Jr., C. Zipfel, D. M. Horvath, M. Paret, 2017. Transgenic resistance for managing soil-borne bacterial wilt disease of tomato
in open field conditions. Conference on Soil-borne Plant Pathogens, University of California, Davis.
S. Kunwar, E.E. da Silva, F. Iriarte, L. Ritchie, D. Clark, J.H. Freeman, R. E. Stall, J. B. Jones, J. Minsavage, C. Zipfel, D. Horvath and M.L. Paret. 2017. Transgenic approach for improving host resistance in tomatoes against bacterial wilt
disease. 15th Biennial Florida Phytopathological Society Meeting. North Florida Research and Education Center, Quincy, University of Florida, USA. Oral presentation
S. Kunwar, E. da Silva, F. B. Iriarte, L. Ritchie, D. Clark, J. H. Freeman, R. E. Stall, J. B. Jones, G. V. Minsavage Jr., C. Zipfel, D. M. Horvath, M. Paret, 2017. Transgenic expression of pattern recognition receptor EFR in tomato leads to
effective field resistance to bacterial wilt. 31st Annual Tomato Disease Workshop, North Carolina, USA. Oral presentation
S. Kunwar, E. da Silva, F. B. Iriarte, L. Ritchie, D. Clark, J. H. Freeman, R. E. Stall, J. B. Jones, G. V. Minsavage Jr., C. Zipfel, D. M. Horvath, M. Paret, 2016. Transgenic expression of pattern recognition receptor EFR in tomato leads to
effective field resistance to bacterial wilt. APS Annual Meeting, Tampa, Florida, USA. Poster Presentation.
S. Kunwar, M.L. Paret, J. Freeman, L. Ritchie, S. Olson and J. B. Jones. 2015. Impact of Acibenzolar-S-Methyl on Bacterial Wilt Disease Incidence and Marketable Yield of Grafted Tomatoes. 14th Biennial Florida Phytopathological Society, University of Florida, Gainesville, Florida, USA. Oral presentation
S. Kunwar, M.L. Paret, J. Freeman, L. Ritchie, S. Olson and J.B. Jones. 2015. Effect of Integrating Grafting and Acibenzolar-S-Methyl Application on Bacterial Wilt Disease Incidence and Marketable Yield of Tomatoes. Statewide Graduate Research Symposium, University of Central Florida, Poster.
S. Kunwar, M. L. Paret, J. Freeman, L. Ritchie, S. Olson and J. B. Jones. 2015. Integrating grafting and Acibenzolar-S-Methyl (ASM) application for management of bacterial wilt disease of tomato. Plant Pathology Departmental Series,
University of Florida, Gainesville, Florida, USA. Oral presentation
S. Kunwar, M. L. Paret, J. B. Jones, L. Ritchie and S. Olson. 2014. Management of bacterial wilt of tomato with a combination of grafting and a systemic acquired resistance inducer. (APS/CPS) Joint Meeting. Minneapolis, Minnesota, U.S.A. Oral presentation
S. Kunwar, M. L. Paret, J. B. Jones, L. Ritchie and S. Olson. 2014. Effect of Integrating Grafting and Acibenzolar-S-Methyl Application on Bacterial Wilt Disease Incidence and Marketable Yield of Tomatoes. Third Annual Graduate Research Symposium, Everglades Research and Education Center, University of Florida, Belle Glade, FL. Poster Presentation.).
Kunwar, S., Redondo, A., Archer, L., Alferez, F., Albrecht, Ute, Batuman, O. 2023. Injecting Oxytetracycline: An Effective Approach for Managing HLB Disease in Citrus. 12th International Congress of Plant Pathology. Lyon, France. August 20-25 (Poster Presentation).
Kunwar, S., Dossoumou, M. E., Sikirou, R., Honfoga, J., Srinivasan, R., Carter, M. D., Steidl, O., Hayes, M. M., Allen, C., Paret, M. 2023. Diversity of strains of Ralstonia solanacearum species complex in Benin in West Africa. 12th International Congress of Plant Pathology. Lyon, France. August 20-25 (Poster Presentation).
Batuman, O., Kunwar, S., Redondo, A., Manker, D., Iott, M., Knobloch, T., Brunet, S., and Dufour, J. 2023. Novel Plant Defense Inducers for Managing Huanglongbing (Citrus Greening) and Citrus Canker Diseases. 12th International Congress of Plant Pathology. Lyon, France. August 20-25 (Poster Presentation).
Batuman, O., Britt, K., Kunwar, S., Redondo, A., and Alferez, F. 2022. Potential management tools for Huanglongbing (HLB) in Florida citrus groves. XIV International Citrus Congress 2022. Mersin, Turkey.
Batuman, O., Kunwar, S., Redondo, A., Manker, D., Iott, M., Knobloch, T., Brunet, S., Dufour, J. 2022. Novel systemic acquired resistance (SAR) inducers for managing Huanglongbing (citrus greening) and citrus canker diseases.
International Horticultural Congress. Angers, France.
Batuman, O., Britt, K., Kunwar, S., Redondo, A., and Alferez, F. 2022. Florida citrus growers’ potential ‘toolbox’ for Huanglongbing (HLB) management: an alphabet soup (ISVs, PDIs, IPCs, NATI etc.). 15th International Symposium of Plant Virus Epidemiology. Epidemiology and management of plant viruses under a changing climate. 5th-8th June. Madrid, Spain
S. Kunwar., Hsu, Y-C., Lu S-F., Hanson, P. 2019. Evaluation of bacterial wilt resistance sources for presence of major resistance genes Bwr-12 and Bwr-6, and as potential sources of new resistance QTLs. 2019. International Society for
Horticultural Science VI International Symposium on Tomato Diseases, National Chung Hsing University, Taiwan. (Oral presentation by P. Hanson)
S. Kunwar, E. da Silva, F. B. Iriarte, L. Ritchie, D. Clark, J. H. Freeman, R. E. Stall, J. B. Jones, G. V. Minsavage Jr., C. Zipfel, D. M. Horvath, M. Paret, 2016. Transgenic resistance for management of tomato bacterial wilt in Florida. 5th
International Symposium on Tomato Diseases. Malaga, Spain. (Poster presented by M. Paret)
S. Kunwar, M. L. Paret, J. B. Jones, L. Ritchie and S. Olson. 2014. Integrating grafting and actigard applications for management of bacterial wilt of tomato. 2014. 29th Annual Tomato Disease Workshop, Windsor, Canada. (Oral presentation).
Batuman, O., Kunwar, S., Redondo, A. 2022. The quest for copper alternatives for managing citrus canker.
Citrus Industry Magazine. AgNet Media. <https://citrusindustry.net/2022/02/14/the-quest-for-copper-alternatives-for-managing-citrus-canker/>
Laird, T., Kunwar, S., Batuman, O., Lindow, S., Godfrey, K., and Leveau, J. 2022. Citrograph Vol 13, No. 2
< https://citrus-research-board-static.sfo2.digitaloceanspaces.com/citrograph/pdf/CRB-Citrograph-Mag-Q2-Spring-2022-Web.pdf>
Batuman, O., Britt, K., Kunwar, S., Redondo, A., and Alferez, F. 2022. Potential management tools for Huanglongbing (HLB) in Florida citrus groves. Acta Hortic (XIV International Citrus Congress 2022. Mersin, Turkey).
S. Kunwar, M. Paret, J. B. Jones, L. Ritchie, S. Olson, and J. Freeman. 2015. Effect of acibenzolar-s-methyl on bacterial wilt incidence of grafted tomatoes. Florida Tomato Institute Proceedings.
Successfully secured a $100,000 grant from the Citrus Research and Development Fund (CRDF) by serving as the co-principal investigator (co-PI) on the grant proposal, dedicated to finding a substitute for antimicrobial 'oxytetracycline' against citrus greening bacteria in case the bacterium develops resistance.
S. Kunwar, M. Paret, J. B. Jones, L. Ritchie, S. Olson, and J. Freeman. (2015) Managing bacterial wilt in tomatoes with grafting and a plant defense inducer. University of Florida IFAS Extension publication. <http://nwdistrict.ifas.ufl.edu/phag/2015/09/11/managing-bacterial-wilt-in-tomatoes-with-grafting-and-a-plant-defense-inducer/>
Pathogen Profile for Colletotrichum gloeosporioides, causal agent of bitter rot in variety of crops <http://wiki.bugwood.org/Colletotrichum_gloeosporioides>
Pathogen Profile for Sclerotinia sclerotiorum, white mold https://wiki.bugwood.org/Sclerotinia_sclerotiorum
During the two weeks training, the local farmers in Rwanda were provided the seedlings of citrus and mangoes and made aware of how including the fruit trees in their farm may help them to increase their income and improve environment. The project was implemented in Mayange Sector, Bugesera District, Rwanda.
Our bacteriology team had a great time demonstrating and teaching about various bacterial diseases of tomato and other vegetables to the high school science educators. The participants learned from other UF faculty and graduate students about various topics on plant pathology including hands-on activities, and tours of research facilities and the plant disease diagnostic facility.
Providing on-site detection of plant pathogens at the Art and Garden Fall Family Festival at the North Florida Research and Education Center, Quincy, University of Floirda.
We introduced middle and high school science teachers about plant pathology and had fun playing different plant pathology games with them.
Encouraging young girls to join STEM field in future! The workshop is conducted annually at the North Florida Research and Education Center, Quincy
Nepalese Student Association at University of Florida
Plant Pathology Graduate Student Organization at University of Florida
Biotech Association of Nepal for Reserach and Development
Phone: (352) 213-7620
Email: sanju.kunwar@ufl.edu