As an Extension plant pathologist, I keep researchers informed of plant diseases that threaten growers' crops, while keeping growers informed of research that helps them understand and control plant pathogens. I serve the woody ornamental and floriculture industries, for which crop quality is of even more importance than quantity.
My main Extension education objective is to teach growers how to integrate production practices with disease-control considerations. This is accomplished through lectures, workshops, and demonstrations conducted statewide.
As a research plant pathologist, my objective is to develop and apply methods of identifying and characterizing populations of Pythium within selected species important in causing greenhouse crop losses. We are currently using amplified fragment polymorphisms and simple DNA sequence repeats (microsatellites) to trace isolates to their origins in production facilities. I also examine how current greenhouse cultural practices influence floricultural crop diseases. A third major effort is to detect resistance to fungicides in Pythium (an important root pathogen) and the flower and foliar pathogen Botrytis and to develop strategies for managing them in the greenhouse environment.
I teach PPATH 300, Horticultural Crop Diseases, a course designed for horticulture, landscape contracting, and arboriculture students as well as anyone wishing to understand plant diseases and maintaining plant health at home and in the garden. This is a General Education course.
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Moorman, G. W. 2006. Disease Management. In, Cutting Propagation. J. M. Dole and J. L. Gibson, eds. Ball Publishing, Batavia, IL. pp. 101-114.
Hong, C. X. and Moorman, G. W. 2005. Plant pathogens in irrigation water: Challenges and opportunities. Critical Reviews in Plant Science: 24:1889-1908.
Garzón, C. D., Geiser, D. M., and Moorman, G. W. 2005. Amplified fragment length polymorphism analysis and internal transcribed spacer and cox II sequences reveal a species boundary within Pythium irregulare. Phytopathology 95:1489-1498.
Garzón, C. D., Geiser, D. M., and Moorman, G. W. 2005. Diagnosis and population analysis of Pythium species using AFLP fingerprinting. Plant Disease 89:81-89.
Kong, P., Richardson, P. A., Moorman, G. W., and Hong, C. 2004. Single-strand conformational polymorphism analysis of the ribosomal internal transcribed spacer 1 for rapid species identification within the genus Pythium. FEMS Microbiology Letters 240:229-236.
Moorman, G. W., Hong, C. X., and Richardson, P. A. 2004. First report of Phytophthora cinnamomi on Ilex glabra in Virginia. Plant Disease 88:1283.
Moorman, G. W. and Kim, S. H. 2004. Species of Pythium from greenhouses in Pennsylvania exhibit resistance to propamocarb and mefenoxam. Plant Disease 88:630-632.
Kim, S. H., Olson, T. N., Schaad, N. W., and Moorman, G. W. 2003. Ralstonia solanacearum race 3, biovar 2, the causal agent of brown rot of potato, identified in geraniums in Pennsylvania, Delaware, and Connecticut . Plant Disease 87:450.
Moorman, G. W. 2003. Cultural control of plant diseases. In, Plant Pathology Concepts and Laboratory Exercises. R. N. Trigiano, M. T. Windham, and A. S. Windham, eds. CRC Press, Boca Raton, FL. Chapter 32, Pp. 313-318.
Moorman, G. W., Kang, S., Geiser, D. M., and Kim, S. H. 2002. Identification and characterization of Pythium species associated with greenhouse floral crops in Pennsylvania . Plant Disease 86:1227-1231.
Moorman, G. W., Kang, S., Geiser, D. M., and Kim, S. H. 2002. Identification and characterization of Pythium species associated with greenhouse floral crops in Pennsylvania . Plant Disease 86:1227-1231.
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