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Plant Pathology: Extension: Plant Disease Library

Southern Stem Blight (White Mold) - Sclerotium rolfsii

Bean, Snap & Pole - Phaseolus vulgaris

Declining plant, white cottony growth at the base of stem
Declining plant, white cottony growth at the base of stem.

Vascular discoloration from the base of stem extending upward. Under moist, warm conditiond, Bee Bee-like structures on the white course mycelium called sclerotia. The signs of this disease can be seen without magnification. However, it is very visible under the stereoscopic scope.
Vascular discoloration from the base of stem extending upward. Under moist, warm conditiond, Bee Bee-like structures on the white course mycelium called sclerotia. The signs of this disease can be seen without magnification. However, it is very visible under the stereoscopic scope.

Disease Management:
Rotation, deep turning.

Click here for more information on Sclerotium

Compiled by: Dr. Danny Gay, UGA Vegetable Pathologist, Tifton, GA

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University of Georgia (UGA) College of Agricultural and Environmental Sciences (CAES)