Slime Molds

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• Pathogen: Mucilago crustacea A Wigg., Didymium squamulosum (Alb. & Schwein.) Fr., Physarum spp., Fuligo spp.

• Common Names: Slime Molds

• Climatic Zone: Temperate, Subtropical, and Tropical

• Geographic Distribution: North America, Europe, East Asia, Australia, Africa, South America

• Favorable Conditions: cool, wet, humid conditions will cause the discharge of swarm cells, warm, wet, overcast conditions will result in movement of plasmodia onto sheaths and leaves, abudant thatch

• Hosts:Creeping Bentgrass, colonial bentgrass, velvet bentgrass, Perennial Ryegrass, Annual Bluegrass (Poa annua), bermudagrass (Cynodon dactylon), Tall Fescue, Kentucky Bluegrass, St. Augustinegrass, zoysiagrass, fine fescues

• Symptoms: Cicurlar or irregular patches 8"-2' (2-60 cm) in diameter, pin cushion-shaped sporangia that are white, yellow, gray, or purplish brown, if mold is heavy some yellowing of the rass can occur