Utah Plant Pest Diagnostic Lab

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.