Diseases Diagnosed in August 2013

    Diseases Diagnosed in August 2013

    Root Rot

    Scientific Name: Rhizoctonia sp.

    root rot

    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

    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


    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


    Angular Leaf Spot

    Scientific Name: Psedomonas lachrymans

    angular leaf spot

    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.

    curly top

    Photo(s): A.C. Magyarosy, Bugwood.org

    Situation: Cream Sausage Tomato

    County: Salt Lake

    Fact Sheets: None


    Bacterial Speck

    Scientific Name: Pseudomonas sp.

    bacterial speck

    bacterial speck

    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.

    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.