Southeastern Ornamental Horticulture Production and Integrated Pest Management

News alerts and tips from Southeastern universities.

New Downy Mildew Affecting Impatiens!!!

Jean Williams-Woodward, UGA Extension Plant Pathologist   A relatively new downy mildew disease is infecting impatiens (Impatiens walleriana), a shade-tolerant, flowering annual plant that is a staple in landscapes. Downy mildew on impatiens caused by Plasmopara obducens was first seen in 2004 and it has shown up sporadically in the US since…
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Boxwood Blight: A New Disease of Boxwoods Recently Found in the Southeastern U.S.

  Norm Dart1, Virginia State Plant Pathologist  Mary Ann Hansen1 and Elizabeth Bush1, Extension Plant Pathologists  Virginia Department of Agriculture and Consumer Services1, Virginia Tech2  Boxwood blight (also called “box blight” in Europe), caused by the fungal pathogen Cylindrocladium buxicola, was reported for the first time in the U.S. at…
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