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Bhabesh Dutta

Assistant Professor and Extension Vegetable Disease Specialist
  • Plant Pathology
Mailing Address:
Tifton, CAES Campus
Shipping Address:
Tifton, CAES Campus

Academic Background

Ph.D. Plant Pathology, University of Georgia. - 2011
B.S. Agricultural Science, Tamil Nadu Agricultural University, India- 2006

Research Interests and Current Efforts

My extension program focuses on the management of the multitude of plant diseases that affect over 20 different vegetable crops produced in Georgia. My research efforts focus on Fusarium wilt of watermelon, (Fusarium oxysporumf. sp.niveum), gummy stem blight of watermelon (S. citrulli), bacterial spot of pepper (Xanthomonas euvesicatoria), black rot of cabbage (X. campestris pv. campestris), and a complex of bacterial diseases of onion.  Research efforts include monitoring strains for fungicide resistance and gaining a better understanding on the ecology of bacterial pathogens. This information will be used to develop novel management practices ranging from the use of nanotechnology-formulated pesticides to how best fertilize plants with micronutrients that up-regulate superoxide dismutases and other enzymes associated with the systemic acquired resistance pathway in plants

Vegetable Blog

Peer reviewed articles:

Stumpf, S., Leach, L., Srinivasan, R., Gitaitis, R., and Dutta, B. 2017. Thrips feeding influences the efficacy of chemical foliar protection against Pantoea ananatis in onion. Plant Disease (in review).

Stice, S., Stumpf, S., Gitaitis, R., Kvitko, B.H., and Dutta, B. 2017. Pantoea ananatis genetic diversity analysis reveals low core genome diversity and accessory genes correlated with onion pathogenicity. Frontiers in Microbiology (in review).

Stumpf, S., Kvitko, B., Gitaitis, R., Dutta, B. 2017. Isolation and characterization of novel Pantoea stewartii subsp. indologenes strains exhibiting center rot in onion. Plant Disease 00:00-000. (in press)

Jordan, B., Culbreath, A.K., Brock, J., and Dutta, B. 2017. First report of Myrothecium leaf spot caused by Myrothecium roridum on pepper in Georgia. Plant Disease 00:00-000. (in press).

Neufield, K.N., Keinath, A.P., Gugino, B., McGrath, M.T., Sikora, E.J., Miller, S.A., Ivey, M.L., Langston, D.B., Dutta, B., Keever, T., Sims, A., and Ojiambo, P.S. 2017. Predicting the risk of cucurbit downy mildew in the eastern United States using an integrated aerobiological model. International Journal of Biometeriology 00:00-000. (accepetd).

Dutta, B., Langston, D.B., Luo, X., Carlson, S., Kichler, J., and Gitaitis, R. 2017. A Risk assessment model for bacterial leaf spot (BLS) of pepper (Capsicum annuum L.), caused by Xanthomonas euvesicatoria, based on concentrations of macronutrients and micronutrients and micronutrient ratios. Phytopathology 00:00-000. (in press).

Stumpf, S., Gitaitis, R., Coolong, T., Riner, C., and Dutta, B. 2017. Interaction of onion cultivar and growth stages on incidence of Pantoea ananatis bulb infection. Plant Disease. 101:1616-1620.

Barman, A., Gadhave, K, Dutta, B., and Srinivasan, R. 2017. Plasticity in host utilization by two host-associated lineages of Aphis gossypii Glover. Bulletin Entomological Research. doi:10.1017/S0007485317000852.

Gadhave, K, Dutta, B., Coolong, T., Adkins, S., and Srinivasan, R. 2017. First Report of a Cucurbit yellow stunting disorder virus in cucurbits in Georgia, United States. Plant Health Progress. 00:000-000 (in press).

Johnson, W., Dutta, B., Sanders, F.H., and Luo, X. 2017. Interactions among cultivation, weeds and a bio-fungicide in organic Vidalia sweet onion. Weed Technology. 00:000-000 (in press).

Dutta, B., Anderson, F., Smith, S., and Gitaitis, R.D. 2016. Epiphytic survival of Pantoea ananatis on Richardia scabra in Georgia. Plant Disease. 101:613-618.

Morris, K., Langston, D.B., Dutta, B., Davis, R.F., Timper, P., Noe, J.P., Dickson, D.W. 2016. Evidence for a disease complex between Pythium aphanidermatum and root-knot nematodes in cucumber. Plant Health Progress 17:200-201.

Dutta, B., Gitaitis, R., Barman, A., Avci, U., Marasigan, K., and Srinivasan, R. 2016. Interactions between Frankliniella fusca and Pantoea ananatis in the center rot epidemic of onion (Allium cepa). Phytopathology 106:956-962.

Dutta, B., Schneider, R.W., Robertson, C.L., and Walcott, R.R. 2016. Embryo localization enhances the survival of Acidovorax citrulli in watermelon seeds. Phytopathology 106:330-338.

Dutta, B., Gitaitis, R.D., Smith, S., Searcy, J.V.K., and Langston, D.B. 2016. Pathogen distribution, incubation period and seedling transmission resulting from secondary contamination of pepper seeds with Xanthomonas euvesicatoria. Seed Science and Technology 44:1-10.

Dutta, B., Gitaitis, R.D., Driver, J.E., and Smith, S. 2016. First report of bacterial leaf spot on watermelon caused by Pseudomonas syringae pv. syringae in Georgia. Plant Disease 100:518.

Searcy, J.V.K., Smith, S., Gitaitis, R.D., and Dutta, B. 2016. First report of tomato pith necrosis caused by Pseudomonas mediterranea in Georgia. Plant Disease 97:988.

Dutta, B., Ha, Y., Lessl, J.T., Avci, U., Sparks, A.C., Johnson, K.L., and Walcott, R.R. 2015. Pathways of bacterial invasion and watermelon seed infestation by Acidovorax citrulli. Plant Pathology 64:537-544.

Dutta, B., Ingram, T., Gitaitis, R.D., Langston, D.B., Brenneman, T., Webster, T.M., and Davis, R.F. 2014. First report of bacterial blight of sugarbeet caused by Pseudomonas syringae pv. aptata in Georgia, USA. Plant Disease 98:1423.

Dutta, B., Gitaitis, R.D., Smith, S., and Langston, D.B. 2014. Interactions of seedborne bacterial pathogens with host and non-host plants in relation to seed infestation and seedling transmission. PLOS One DOI: 10.1371/journal.pone.009921.

Dutta, B., Barman, A. K., Srinivasan, R., Avci, U., Ullman, D.E., Langston, D.B., and Gitaitis, R.D. 2014. Transmission of Pantoea ananatis and Pantoea agglomerans causal agents of center rot of onion (Allium cepa L.) by onion thrips (Thrips tabaci Lindeman) through feces. Phytopathology 104:812-819.

Dutta, B., Gitaitis, R.D., Webster, T.M., Sanders, H., Smith, S., and Langston, D.B. 2014. Distribution and Survival of Pseudomonas sp. on Italian ryegrass (Lolium multiflorum) and Curly dock (Rumex crispus), in Georgia. Plant Disease 98:660-666.

Dutta, B., Sanders, H., Langston, D.B., Booth, C., Smith, S., and Gitaitis, R.D. 2014. Long-term survival of Acidovorax citrulli in citron melon (Citrullus lanatus var. citroides) seeds. Plant Pathology 63:1130-1137.

Dutta, B., Gitaitis, R., Sanders, H., Booth, C., Smith, S., and Langston, D.B. 2014. Role of blossom colonization in pepper seed infestation by Xanthomonas euvesicatoria. Phytopathology 104:232-239.

Dutta, B., Block, C.C., Stevenson, K.L., Sanders, F.H., Walcott, R. R., and Gitaitis, R.D. 2013. Distribution of phytopathogenic bacteria in infested seeds. Seed Science and Technology 41:383-397.

Dutta, B., Gitaitis, R.D., Sanders, F.H., Booth, C., Smith, S., and Langston, D.B. 2013. First report of bacterial leaf spot of pumpkin caused by Xanthomonas cucurbitae, in Georgia, USA. Plant Disease 97:1375.

Parkunan, V., Gitaitis, R. D., Dutta, B., Langston, D. B., and Ji, P. An epidemic of downy mildew caused by Peronospora destructor on Vidalia sweet onions in Georgia in 2012. Online. Plant Health Progress Plant Health Progress doi:10.1094/PHP-2013-0328-01-BR.

Dutta, B., Gitaitis, R.D., Lewis, K.L., and Langston, D.B. 2013. A New Report of Xanthomonas cucurbitae Causing Bacterial Leaf Spot of Watermelon in Georgia, USA. Plant Disease 97:4.

Dutta, B., Gitaitis, R.D., Lewis, K.L., Booth, C., Langston, D.B., Webster, T.M., Riner, C.M., and Edenfield, J.D. 2013. New Report of Lolium multiflorum L. and Rumex crispus L. as resident weed hosts of epiphytic populations of Psuedomonas sp., causal agent of yellow bud in onions in Georgia, U.S.A. New Disease Report 27:18.

Fulmer, A.M., Walls, J.T., Dutta, B., Parkunan, V., Brock, J and Kemerait, R.C. Jr. 2012. First Report of Target Spot Caused by Corynespora cassiicola on Cotton in Georgia. Plant Disease 96:1066.

Dutta, B., Scherm, H., Gitaitis, R.D., and Walcott, R.R.  2012. Acidovorax  citrulli seed inoculum load affects seedling transmission and spread of bacterial fruit blotch of watermelon under greenhouse conditions. Plant Disease 96:705-711.

Dutta, B., Avci, U., Hahn, M.G., and Walcott, R.R.  2012. Location of Acidovorax citrulli in infested watermelon seeds is influenced by the pathway of bacterial invasion.  Phytopathology 102:461-468.

Dutta, B., Vernaiz, M.A.C., Castro-Sparks, A.C., Scherm, H., and Walcott, R. R. 2012. Effect of Acidovorax citrulli location in watermelon seeds on detection by seed health testing. Seed Science and Technology 40-309-319.

Bahar, O., Efrat, M., Hadar, E., Dutta, B., Walcott, R.R., and Burdman, S. 2008.  New subspecies-specific rep-PCR based primers for detection of Acidovorax avenae subsp. citrulli.   Plant Pathology 57: 54–763.

 

Plant Disease Management Reports

Dutta, B., J. Neuman, and M. J. Foster. 2017. Evaluation of fungicides for control of southern blight on tomato, Georgia 2016. Plant Disease Management Reports 11:V019.

Dutta, B., C. Riner, J. Neuman and M.J.Foster. 2017. Evaluation of fungicides and spray programs for control of Botrytis leaf blight of onion in Georgia, 2016. Plant Disease Management Reports 11:V020.

Price, T and B. Dutta. 2017. Evaluation of Fungicides on Downy Mildew (Pseudoperonospora cubensis) of Watermelon in Georgia, 2015. Plant Disease Management Reports 11:V070.

Dutta, B., W. H. Gay and M. J. Foster. 2017. Evaluation of fungicides for control of anthracnose on watermelon, Georgia 2016. Plant Disease Management Reports 11:V071.

Dutta, B., J. Neuman and M. J. Foster. 2017. Evaluation of fungicides and spray programs for the control of down mildew on cucumber in Georgia, 2015. Plant Disease Management Reports 11:V115.

Dutta, B and M. J. Foster. 2017. Evaluation of fungicides for control of powdery mildew on squash, Georgia 2016. Plant Disease Management Reports 11:V018.

Dutta, B., W.M. Donahoo and M. J. Foster. 2017. Evaluation of fungicides and spray programs for the control of down mildew on cucumber in Georgia, 2015. Plant Disease Management Reports 11:V150.

Dutta, B., M. J. Foster and W.M. Donahoo. 2017. Evaluation of bactericides and plant defense activator for control of bacterial spot on pepper, Georgia 2016. Plant Disease Management Reports 11:V151.

Dutta, B., M. J. Foster and W.M. Donahoo. 2017. Evaluation of fungicides for control of southern blight on tomato, Georgia 2015. Plant Disease Management Reports 11:V157.

Dutta, B., M. J. Foster and W.M. Donahoo. 2017. Evaluation of biofungicide and chemical fungicides for control of powdery mildew on squash, Georgia 2015. Plant Disease Management Reports 11:V140.

Dutta, B., M. J. Foster and W.M. Donahoo. 2017 Evaluation of fungicides for control of powdery mildew on squash, Georgia 2015. Plant Disease Management Reports 11:V152.

Cooong, T., Dutta, B., and Sander, F.H. 2017. Evaluation of yield and downy mildew resistance in cucumber in Georgia, 2014. Plant Disease Management Reports 11:V149.

Cooong, T., and Dutta, B. 2017. Evaluation of yield and black rot resistance in kale in Georgia, 2015. Plant Disease Management Reports 11:V158.

 

Book Chapters

Dutta, B. Cichorii seedling blight. In: Compendium of Cucurbit Diseases. Eds. A. Kenaith, and T. A. Zitter. (in press). APS Press.

Dutta, B. Syringae blight and leaf spot. In: Compendium of Cucurbit Diseases. Eds. A. Kenaith, and T. A. Zitter. (in press). APS Press.

Dutta, B. Viridiflava blight and white spots. In: Compendium of Cucurbit Diseases. Eds. A. Kenaith, and T. A. Zitter. (in press). APS Press.

Gitaitis, R., Dutta, B., Coutinho, T. Pantoea. In: Laboratory Guide for Identification of Plant Pathogenic Bacteria, Fourth Edition. Eds. N.W. Schaad, J.B. Jones, and W. Chun. (in review). APS Press.