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 September 25, 2021 through October 1, 2021.

PLANT/SAMPLE TYPE	DISEASE/DISORDER	PATHOGEN	COUNTY
FRUIT CROPS
Grape	Botrytis Bunch Rot Downy Mildew Sour Rot	Botrytis cinerea Plasmopara viticola Miscellaneous yeasts	Portage Portage Portage

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 botrytis bunch rot, disease, Downy mildew, Grapes, PDDC, Plant Disease Diagnostic Clinic, sour rot.