Utah Plant Pest Diagnostic Lab

Diseases Diagnosed in April 2012

Abiotic, unknown and/or non-disease stressors in April.

  1. Abiotic (Dichondra)
  2. Overwatering/Salt Damage (Geranium)

Necrotic Ring Spot

Scientific Name: Ophiosphaerlla korrae

nectrotic ring spot

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

Powdery Mildew

Scientific Name: Sawadaea sp

powdery mildew

Photo(s): Powdery mildew on a maple leaf, Andrej Kunca, National Forest Centre - Slovakia, Bugwood.org

Situation: On ornamental plant

County: Utah

Fact Sheets: University of California, Davis

Pink Snow Mold

Scientific Name: Microdochium nivale

pink snow mold

Photo(s): An area affected by pink snow mold on a golf course, William M. Brown Jr., Bugwood.org.

Situation: Turf

County: Salt Lake County

Fact Sheets: Utah State University

Verticillium Wilt

Scientific Name: Verticillium dahliae.

verticilllium wilt

Photo(s): Howard F. Schwartz Colorado State University, Bugwood.org

Situation: Peppermint

County: Cache

Fact Sheets: Utah Pests IPM

*Links on the page are not intended as authoritative sources of management information. Established links allow users to view pictures of pests and find general biology and control information; for Utah-specific control recommendations please contact the Utah Plant Pest Diagnostic Lab @ 435-797-2435. Pictures above are not always the exact species identified, but are representative photos of submitted samples.