Red thread factsheet

Red thread factsheet: "RED THREAD ON TURFGRASS"

Red thread occurs in the spring and fall during humid periods when the air temperatures are between 16°C and 24°C (60°F and 75°F). The disease is especially severe on slow-growing nitrogen-deficient turf. Bluegrasses (Poa sp.), fescues (Festuca sp.), ryegrasses (Lolium sp.), and bentgrasses (Agrostis sp.) can be affected. Fine-leaved fescues and some ryegrasses are particularly susceptible.