UW-Madison/Extension Plant Disease Diagnostic Clinic (PDDC) Update July 29, 2022
In 2022, the PDDC continues to provide diagnoses through examination of digital photographs, as well as physical samples. Click here for the PDDC’s current submission policy, as well as information on the PDDC’s current fee structure. Digital diagnoses will be included in the Wisconsin Disease Almanac and 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 23, 2022 through July 29, 2022.
| PLANT/SAMPLE TYPE | DISEASE/DISORDER | PATHOGEN | COUNTY |
| FRUIT CROPS | |||
| Grape | Sour Rot (Suspected) | Miscellaneous fungi | Dane |
| Plum | Black Knot | Apiosporina morbosa | Kewaunee |
| Raspberry | Raspberry Leaf Spot Root/Crown Rot | Cylindrosporium sp. Phytophthora sp. Rhizoctonia sp. | Dane Dane |
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 Ann Joy, black knot, Brian Hudelson, disease, Grapes, PDDC, Plant Disease Diagnostic Clinic, Plum, Raspberries, raspberry leaf spot, Root/Crown Rot, Sarah deVeer, sour rot, Sue Lueloff.