I respond to the needs of Texas growers with research and educational efforts aimed at solving their plant disease problems. I work on diseases of field crops, with emphasis on major diseases of cotton, corn, and sorghum in Texas. I also work on diseases of some vegetables, with emphasis on watermelons. With cotton, I am evaluating fungicides for control of Phymatotrichopsis root rot, in collaboration with agronomists, IPM agents and county agents throughout the state. For corn, I've emphasized aflatoxin control, through collaborative projects on host resistance with the corn breeder, Dr. Seth Murray and plant pathologist, Dr. Mike Kolomiets. I also do field studies on the use of atoxigenic strains for biological control of aflatoxin. My sorghum emphasis is management of metalaxyl-resistant sorghum downy mildew strains. I also collaborate with USDA-ARS plant pathologist, Dr. Louis Prom, on sorghum anthracnose and grain mold research.
While it is essential to respond to disease problems as they arise, I strive to anticipate how changes in agriculture in the future will affect plant diseases and approaches for their control. Information resulting from all these efforts is useless unless it is communicated to the clientele that need it- primarily farmers, which is the key component of my job. The ultimate purpose of my activities is to help maintain the viability of agriculture in Texas.
- Hendricks, K., Hernandez, R. N., Roberts, P., Isakeit, T., & Alabi, O. J. (2021). First report of watermelon crinkle leaf-associated virus 1 (WCLaV-1) and WCLaV-2 in watermelon (Citrullus lanatus L.) plants co-infected with Cucurbit chlorotic yellows virus in Florida.. Plant Dis. 106(1), 339-339.
- Hernandez, R. N., Isakeit, T., Al Rwahnih, M., Hernandez, R., & Alabi, O. J. (2021). First report of squash vein yellowing virus naturally infecting butternut squash (Cucurbita moschata) in Texas.. Plant Dis. 105(9), 2738-2738.
- Hernandez, R. N., Isakeit, T., Al Rwahnih, M., Hernandez, R., & Alabi, O. J. (2021). First report of Cucurbit chlorotic yellows virus infecting cantaloupe (Cucumis melo L.) in Texas.. Plant Dis. 105(10), 3313-3313.
- Hernandez, R. N., Isakeit, T., Al Rwahnih, M., Villegas, C., & Alabi, O. J. (2021). First report of watermelon crinkle leaf-associated virus 1 (WCLaV-1) and WCLaV-2 infecting watermelon (Citrullus lanatus) in the United States.. Plant Dis. 105(7), 2025-2025.
- Prom, L. K., Ahn, E., Isakeit, T., & Magill, C. (2019). GWAS analysis of sorghum association panel lines identifies SNPs associated with disease response to Texas isolates of Colletotrichum sublineola.. Theor Appl Genet. 132(5), 1389-1396.
- Luo, J., Arriaga, J. M., Li, H., Hemphill, J. K., Raisor, M., Keller, N., Isakeit, T., & Gould, J. H. (2000). Transformation of TAES cotton for seedling disease resistance. 2000 Proceedings Beltwide Cotton Conferences. 639-640.
- Laughlin, David Andres (2016-05). Environmental and Developmental Aspects of Sorghum Downy Mildew with Particular Emphasis on Oospores. (Doctoral Dissertation)
- Hassett, Brandon (2012-08). Movement and Longevity of Aspergillus flavus Propagules and Factors that Contribute to and Influence their Colonization and Production. (Master's Thesis)
- Noe, Montes Garcia (2004-12). Epidemiological aspects of Claviceps africana, causal agent of Sorghum ergot. (Doctoral Dissertation)