Images
Thick hyphae Annual bluegrass crown with characteristic dark colored, thick hyphae (as indicated by arrow) produced by the summer patch fungus Magnaporthe graminicola.
Dark hyphae Another view of dark hyphae typically produced by the summer patch fungus.

Diseases & Disorders
Alfalfa & Forage Disorders Grain Disorders Fruit Diseases Shade Trees & Ornamental Diseases Turf Diseases Vegetable Diseases Exotic Pest Monitoring Non-Pathogenic Disorders
Websites
utah pests homepage Integrated Pest Management Plant Diseases Insects and Their Relatives Utah Plant Pest Diagnostic Lab