White Mold

White mold appears as water-soaked lesions covered by a white, cottony mycelial mat on leaves and stems. In severely affected plants, the stem is girdled and plants die. Hard, black, irregularly shaped sclerotia (about 0.25 to 0.5 inch in diameter) develop inside dying potato stems.

• Reference: http://www.ipm.ucdavis.edu/PMG/r607100611.html

Presence among species

Pathogen	Susceptible Host
Sclerotinia sclerotiorum	Solanum lycopersicum
Sclerotinia sclerotiorum	Solanum tuberosum