Pathogen: Sclerophthora macrospora

Host: Annual Bluegrass, Kentucky Bluegrass, Rough Bluegrass, Colonial Bentgrass, Velvet Bentgrass, Creeping Bentgrass, Perennial Ryegrass, Fine Fescue, Tall Fescue

Environmental Requirements: 40-70 F, high moisture, poor drainage

Stand Symptoms: small yellow spots

Plant Symptoms: dense clusters of yellow shoots that pull easily from the turf

Fungal Signs: sporangia and zoospores

Environmental Modification: improve drainage, mask with Iron treatment

Plant Resistance: none resistant