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ARS Home Midwest Area Wooster, Ohio Application Technology Research Horticulture







Pests and Diseasesheadline bar  Botrytis lesion on a begonia leaf.
Powdery mildew on zinnias.
Whiteflies are a common and destructive greenhouse pest.Silicon delays *Tobacco ringspot virus* systemic symptoms in *Nicotiana tabacum* (2011)[Summary][Full Paper]Interaction of *Calibrachoa* and Selected Root and Foliar Pathogens in Greenhouse Settings (2011)[Summary][Full Paper]Rare Excitatory Amino Acid from Flowers of Zonal Geranium Responsible for Paralyzing the Japanese Beetle  (2011)[Summary][Full Paper]Exserohilum Leaf Spot on Tiger Grass (2009)[Summary][Full Paper]Influence of Silicon on Resistance of *Zinnia elegans* to *Myzus persicae*  (2009)[Summary][Full Paper]Using Leaf Temperature to Detect Root Rot Stress in Geranium  (2007)[Summary][Full Paper]Disease Management: Botrytis (2007)[Popular Press Newsletter]Applied Nitrogen Concentration Affects Growth of Elatior Begonia and New Guinea Impatiens, and Susceptibility of Begonia to Grey Mold  (2007)[Summary][Full Paper]Suppression of Botrytis of Begonia by Trichoderma hamatum 382 in Peat and Compost-Amended Potting Mixes  (2005)[Summary][Full Paper]Effects of Formulated Plant Extracts and Oils on Population Density of *Phytophthora nicotianae* in Soil and Control of Phytophthora Blight in the Greenhouse  (2004)[Summary][Full Paper]Control of Phytophthora and Other Major Diseases of Ericaceous Plants  (2005)[Popular Press Article]


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