Corm Rot
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Corm rot on Gladiolus. Lesions on corms (bulb-shaped roots) with presence of sclerotia in lesions. One destroyed in making cultures. Specimen in herbarium.

Hand-painted print from a W&W Panchromatic black-and-white negative, ray filter used. 1921.

Image: W. Fisher. Copyright © Dept. of Plant Pathology, Cornell University
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