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