Pathogen: Puccinia spp.
Host: Kentucky Bluegrass, Perennial Ryegrass, Tall Fescue
Environmental Requirements: slowed growth from low fertility, cool weather
Stand Symptoms: non-patterned yellowing
Plant Symptoms: leaves yellowed around pustules
Fungal Signs: pustules and rust colored spore masses on the leaves and stems
Environmental Modification: balanced N-P-K fertilization, mow every week
Plant Resistance: plant resistant varieties