Extension > Garden > Diagnose a problem > What's wrong with my plant? > Annuals and Perennials > Cosmos > Entire plant or branch wilts
Cosmos > Plant > Entire plant or branch wilts
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White Mold
Sclerotinia sclerotiorum
- Entire plant or single branch wilts, leaves turn brown and die
- Wilted stems are discolored, tan to off-white
- Fluffy, white cotton-like fungal growth may been seen on infected plants when humidity is high
- Black hard spheres ranging in size from 1/16 to 1/2 inch can be found clinging to the outside an infected stem or embedded inside the dead stem
- Entire plant or single branch wilts, leaves turn brown and die
- More information on white mold