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Sclerotium rolfsii is a necrotrophic, soilborne, fungal plant pathogen that is present in tropical and subtropical regions worldwide. It causes a disease commonly known as “southern blight” on a variety of host plants. It was first described in tomato plantings in Florida in the late 19th century. In the United States, the disease is more problematic in southern states where warm and humid conditions favor the pathogen. Over the last decade, southern blight has increasingly become an issue in vegetable and field crops in Virginia and across the mid-Atlantic region. This publication provides an overview (e.g., signs, symptoms) and how to control.
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August 24, 2021