How to Manage Pests

Pests in Gardens and Landscapes

Seasonal development and life cycle–White mold

The white mold fungus, Sclerotinia spp., survives from one crop to the next as sclerotia in or on dead plant tissue. Because prolonged wetness is required for infection, disease usually occurs at the base of plants or beneath heavy plant canopies. Infection and development is favored by cool, moist conditions.

Sclerotia on lettuce crown
Sclerotia on lettuce crown

Statewide IPM Program, Agriculture and Natural Resources, University of California
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Agriculture and Natural Resources, University of California

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