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Katherine L. Stevenson

Professor and REI Coordinator, Epidemiology and Fungicide Resistance
  • Plant Pathology
Mailing Address:
Tifton, CAES Campus
Shipping Address:
Tifton, CAES Campus

Academic Background

Ph.D. in Plant Pathology, Cornell University, 1990
M.S. in Plant Pathology, Cornell University, 1986
B.S. in Plant Pathology, Cornell University, 1978

Research Interests and Current Efforts

Epidemiology and disease management; and monitoring, management and mechanisms of fungicide resistance in fungal plant pathogens of pecan, peanut and watermelon.

RECENT PUBLICATIONS

Book Chapters

Stevenson, K. L. 2015. Analysis of spatial pattern. Pages 31-36 in: Exercises in Plant Disease Epidemiology, 2nd edition. K. L. Stevenson and M. J. Jeger, eds. APS Press, St. Paul MN.

Stevenson, K. L. 2015. Quantification of airborne plant pathogens. Pages 81-86 in: Exercises in Plant Disease Epidemiology, 2nd edition. K. L. Stevenson and M. J. Jeger, eds. APS Press, St. Paul MN.

Stevenson, K. L., and Bowen K. L. 2015. Modeling yield loss. Pages 209-214 in: Exercises in Plant Disease Epidemiology, 2nd edition. K. L. Stevenson and M. J. Jeger, eds. APS Press, St. Paul, MN.

Journal Articles

Jeger, M. J., Stevenson, K. L., and Madden, L. V. 2016. Plant disease epidemiology. In Oxford Bibliographies in Ecology. D. Gibson, ed., Oxford University Press, New York. (in press)

Bock, C. H., Chen, C., Yu, F., Stevenson, K. L., Arias, R. S., and Wood, B. W. 2016. Characterization of microsatellites in Fusicladium effusum, cause of pecan scab. Forest Pathology. doi: 10.1111/efp.12278 URL: http://onlinelibrary.wiley.com/doi/10.1111/efp.12278/epdf

Standish, J. R., Avenot, H. F., Brenneman, T. B., and Stevenson, K. L. 2016. Location of an intron in the cytochrome b gene indicates reduced risk of QoI fungicide resistance in Fusicladium effusum. Plant Disease 100:2294-2298.

Li, H.-X., Stevenson, K. L., and Brewer, M. T. 2016. Differences in sensitivity to a triazole fungicide among Stagonosporopsis species causing gummy stem blight of cucurbits.  Plant Disease 100: 2099-2105.

Bock, C. H., Chen, C., Yu, F., Stevenson, K. L., and Wood, B. W. 2016. Draft genome sequence of Fusicladium effusum, cause of pecan scab. Standards in Genomic Sciences 11:36. DOI 10.1186/s40793-016-0161-y URL: http://www.standardsingenomics.com/content/11/1/36

Emmitt, R. S., Stevenson, K. L., Brenneman, T. B., and Buck, J. W. 2016. Management of daylily rust with different fungicide combinations and spray intervals. Plant Disease 100:188-191.

Culbreath, A. K., Kemerait, R. C., Jr., Tsai, Y. C., Brenneman, T. B., Stevenson, K. L., and Cantonwine, E. G. 2015.  Effect of in-furrow and early season banded applications of fungicides on incidence of early leaf spot of peanut.  Plant Health Progress 16: 225-229.

Thomas, A., Langston, D. B. Jr., Walcott, R. R., Gitaitis, R. D., and Stevenson, K. L. 2014. Evidence for fungicide-resistant seed-borne inoculum for gummy stem blight of watermelon. Seed Science and Technology 42:92-96.

Finger, M. J., Parkunan, V., Ji, P., and Stevenson, K. L. 2014. Allele-specific PCR for the detection of azoxystrobin resistance in Didymella bryoniae. Plant Disease 98:1681-1684.

Bock, C. H., Wood, B. W., Stevenson, K. L., and Arias, R. S. 2014. Genetic diversity and population structure of Fusicladium effusum on pecan in the U.S.A. Plant Disease 98: 916-923.

Bock, C. H., Endalew, T., Biswas, B. K., Yadav, A. K., Sitther, V., Hotchkiss, M. W., Stevenson, K. L., and Wood, B. W. 2014. A comparison of UP-PCR and RAPD markers to study genetic diversity of Fusicladium effusum (G. Winter), cause of pecan scab. Forest Pathology 44:266-275.

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.

Davis, R. F., Aryal, S. K., Perry, C. D., Sullivan, D. G., Timper, P. C., Ortiz, B., Stevenson, K. L., Vellidis, G., and Hawkins, G. L. 2013. Utilizing management zones for Rotylenchulus reniformis in cotton: effects on nematode levels, crop damage, and Pasteuria sp. Crop Protection 50:53-60.

Avenot, H., Thomas, A., Gitaitis, R. D., Langston, D. B. Jr., and Stevenson, K. L. 2012. Molecular characterization of boscalid- and penthiopyrad-resistant isolates of Didymella bryoniae and assessment of their sensitivity to fluopyram. Pest Management Science 68:645-65.

Thomas, A., Langston, D. B. Jr., and Stevenson, K. L. 2012. Baseline sensitivity and cross-resistance to succinate-dehydrogenase-inhibiting and demethylation-inhibiting fungicides in Didymella bryoniae. Plant Disease 96:979-984.

Stevenson, K. L., Keinath, A. P., Thomas, A., Langston, D. B. Jr., Roberts, P. D., Hockmuth, R. C., and Thornton, A. C. 2012. Boscalid insensitivity documented in Didymella bryoniae isolated from watermelon in Florida and North Carolina. Plant Health Progress doi:10.1094/PHP-2012-0518-01-BR.

Thomas, A., Langston, D. B. Jr., Sanders, H. F., and Stevenson, K. L. 2012. Relationship between fungicide sensitivity and control of gummy stem blight of watermelon under field conditions. Plant Disease 96:1780-1784.