Utah Plant Pest Diagnostic Lab
Diseases Diagnosed in February 2011
Winter Water Stress
Scientific Name: Abiotic
Photo(s): Winter water stress on evergreens, Michael Kuhns, Utah State University.
Situation: Abiotic effect caused by temperature swings in the winter.
County: Salt Lake County
Fact Sheets: University of Minnesota
Necrotic Ring Spot
Scientific Name: Ophiosphaerlla korrae
Photo(s): Necrotic ring spot, Mary Ann Hansen, Virginia Polytechnic Institute and State University, Bugwood.org.
Situation: Turf
County: Salt Lake County
Fact Sheets: Utah State University; Colorado State University
Pythium Root Rot
Scientific Name: Pythium sp.
Photo(s): Pythium root rot, David B. Langston, University of Georgia, Bugwood.org
Situation: On plants
County: Utah County
Fact Sheets: UC IPM; New Mexico State Univ.