Diseases Diagnosed in November 2012

    Diseases Diagnosed in November 2012

    Apple Scab (Venturiaceae)

    Scientific Name: Ventuia inaequalis.

    apple scab

    Photo(s): Ryan Davis USU

    Situation: Apple tree

    County: Utah

    Fact Sheets: None


    Potato Scab

    Scientific Name: Streptomyces scabies

    potato scab

    potato scab

    potato scab

    Photo(s): Potato Scab taken by Claudia Nischwitz, Utah State University

    Situation: Potato

    County: Beaver

    Fact Sheets: Cornell University


    Armillaria

    Pathogen: Armillaria

    armillaria

    armillaria

    Photo(s): Armillaria on chestnut tree taken by Claudia Nischwitz, Utah State University

    Situation: Chestnut Tree

    County: Not recorded

    Fact Sheets: Penn State University


    Abiotic, unkown, and /or non-disease stressors in November

    1. Damage from wire on grape. (Photos only)

      grape damage

      grape damage

      Photo/s: Damaged grape photos taken by Claudia Nischwitz, Utah State University

    2. Dodder. (Turf)

      Problem: Cuscuta sp - a parasitic plant

      dodder

      dodder

      Photo/s: Dodder photos taken by Claudia Nischwitz, Utah State University

      Fact Sheets: University of Georgia

    *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.