Utah Plant Pest Diagnostic Lab
Diseases Diagnosed in August 2013
Root Rot
Scientific Name: Rhizoctonia sp.
Photo(s): Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org
Situation: Lavender from greenhouse
County: Utah
Fact Sheets: None
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
Summer Patch
Scientific Name: Magnaporthe poae
Photo(s): Summer patch in bluegrass, Mary Ann Hansen, Virginia Polytechnic Institute and State University, Bugwood.org
Situation: On turf
County: Carbon, Wasatch, Salt Lake
Fact Sheets: Colorado State University; Ohio State University
Tomato Spotted Leaf Virus
Scientific Name: Varies - transported by thrips
Photo(s): TSLV in a tomato taken by Claudia Nischwitz, Utah State University.
Situation: Tomato
County: Cache
Fact Sheets: Utah State University Extension News; Cornell University
Angular Leaf Spot
Scientific Name: Psedomonas lachrymans
Photo(s): Howard F. Schwartz, Colorado State University, Bugwood.org
Situation: Persian Cucumbers
County: Salt Lake
Fact Sheets: None
Curly Top
Scientific Name: Germinirirus sp.
Photo(s): A.C. Magyarosy, Bugwood.org
Situation: Cream Sausage Tomato
County: Salt Lake
Fact Sheets: None
Bacterial Speck
Scientific Name: Pseudomonas sp.
Photo(s): Bacterial speck in a tomato plant taken by Claudia Nischwitz, Utah State University.
Situation: Tomato
County: Davis
Fact Sheets: Cornell University; University of California, Davis
Verticillium Wilt
Scientific Name: Verticillium dahliae.
Photo(s): Howard F. Schwartz Colorado State University, Bugwood.org
Situation: Peppermint
County: Cache
Fact Sheets: Utah Pests IPM