Diseases Diagnosed in July 2012

    Diseases Diagnosed in July 2012

    Coryneum Blight Shothole

    Scientific Name: Wilsonmyces carpophilus

    cornyneum blight

    cornyneum blight

    Photo(s): Coryneum Blight images from USU publications

    Situation: Peach

    County: Grand

    Fact Sheets: Utah State University; Colorado State University


    Fusarium Stem Rot

    Scientific Name: Fusarium sp

    fusarium stem rot

    Photo(s): Oregon State University Plant Clinic

    Situation: Mountain Mahogany

    County: Cache

    Fact Sheets: None


    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


    Slime Mold

    Scientific Name: NA

    slime mold

    slime mold

    Photo(s): Slime mold fruiting bodies, Joseph LaForest, University of Georgia, Bugwood.org; Slime mold on forest floor, Tarah Kolb, Bugwood.org.

    Situation: Forest floor

    County: Wasatch

    Fact Sheets: Utah State University; Colorado State University; Colorado State University Extension


    Summer Patch

    Scientific Name: Magnaporthe poae

    summer patch

    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

    tomato spotted leaf virus

    tomato spotted leaf virus

    tomato spotted leaf virus

    tomato spotted leaf virus

    tomato spotted leaf virus

    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


    Abiotic and non-disease stressors in July

    1. Drought Damage (Golden Raintree - Washington)
    2. Herbicide Damage (Ash - Davis)
    3. Moss (Turf)
    4. Physiological Leaf Spot of Tulip Trees

      leaf spot

      leaf spot

      Photo/s: Physiological Leaf Spot of Tulip Trees taken by Claudia Nischwitz, Utah State University

      Situation: Tulip Tree

      County: Salt Lake

      Fact Sheets: None

    5. Wind Damage (Japanese Pagoda - Davis)
    6. Winter Stress/Injury (Swedish Aspen Tree - Wasatch)

    winter injury

    Photo/s: Winter Injury taken by Mike Kuhns, Utah State University.

    Situation: Injury in arborvitae

    Location: Cache, Weber

    Fact Sheets: Utah State University; Utah State University

    *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.