Pathogen: Sclerotinia homoeocarpa

Host: Annual Bluegrass, Kentucky Bluegrass, Perennial Ryegrass, Colonial Bentgrass, Creeping Bentgrass, Velvet Bentgrass

Environmental Requirements: 60-90 F, high moisture

Stand Symptoms: on close cut turf, bleached out turf the size of a silver dollar

Plant Symptoms: white lesions with reddish-brown margins

Fungal Signs: whitish, cottony mycelium on affected turf when moisture is present

Environmental Modification: balance fertility program, remove dew

Plant Resistance: some bentgrass varieties are less susceptible