Pathogen: Typhula incarnata
Typhula ishikariensis
Host: Annual Bluegrass, Kentucky Bluegrass, Colonial Bentgrass, Velvet Bentgrass, Creeping Bentgrass, Perennial Ryegrass, Fine Fescue, Tall Fescue
Environmental Requirements: 30-40 F, high moisture, under snow cover, lush foliar growth
Stand Symptoms: circular grayish or straw colored blighted areas, after snow melt grayish white mycelium can be seen on the outer margins
Plant Symptoms: plants are matted
Fungal Signs: T. incarnata - large rust colored sclerotia
T. ishikariensis- small black sclerotia
Environmental Modification: avoid lush growth going into winter, mow grass until growth has stopped
Plant Resistance: Kentucky Bluegrass and Fine Fescues are the least susceptible
Plant Symptoms
Stand Symptoms
T. incarnata
T. ishikariensis
