Botrytis Leaf Blight
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Lorbeer, J.W.; Andaloro, J.T.
Botrytis leaf blight (BLB) is a fungal disease that occurs in many of the onion growing areas of the world. The causal organism, Botrytis squamosa, causes leaf spots (lesions) and maceration of leaf tissue resulting in leaf dieback and blighting.
NYS IPM Type: Vegetables IPM Fact Sheet
New York State IPM Program
Agricultural IPM; Vegetables; Onions