In 2021, the PDDC continues with limited hours and limited sample processing capacity due to COVID-19.  Click here for the PDDC’s current submission policy.  The PDDC is continuing to provide diagnoses through examination of digital photographs, although in 2021 there will be a fee for this service.  As in 2020, digital diagnoses will be included in the Wisconsin Disease Almanac.  For Almanac entries below, when a digital diagnosis would normally require a lab confirmation, the disease/disorder will be labeled as “suspected”.  The following diseases/disorders have been identified at the PDDC from July 17, 2021 through July 23, 2021.

PLANT/SAMPLE TYPE	DISEASE/DISORDER	PATHOGEN	COUNTY
FRUIT CROPS
Apple	Cedar-Apple Rust (Suspected)	Gymnosporangium juniperi-virginianae	St. Croix
Blueberry	Cytospora Canker	Cytospora sp.	Juneau
Currant	Septoria Leaf Spot	Septoria sp.	Buffalo
Elderberry	Rust	Puccinia sambuci	Buffalo
Strawberry	Neopestalotiopsis Crown/Root Rot Phomopsis Leaf Blight	Neopestalotiopsis roasae Phomopsis sp.	Eau Claire Eau Claire

To learn more about plant diseases and their control, as well as PDDC educational resources and activities, visit the PDDC website at pddc.wisc.edu, follow the clinic on Facebook and Twitter @UWPDDC or email pddc@wisc.edu to subscribe to the PDDC listserv “UWPDDCLearn”.

This article was posted in Disease and tagged Apples, Blueberries, cedar-apple rust, Currants, cytospora canker, disease, Elderberry, Neopestalotiopsis, PDDC, Phomopsis, Plant Disease Diagnostic Clinic, Rust, Septoria Leaf Spot, Strawberries.