UW-Extension/Madison Plant Disease Diagnostic Clinic (PDDC) Update
Brian Hudelson, Ann Joy, Amanda Zimmerman and Adam Greene, Plant Disease Diagnostics Clinic
The PDDC receives samples of many plant samples from around the state. The following diseases/disorders have been identified at the PDDC since January 1, 2012:
|
PLANT/SAMPLE |
DISEASE/DISORDER |
PATHOGEN |
COUNTY |
|
FRUIT CROPS |
|
|
|
| Apple | Cytospora Canker
|
Cytospora sp.
Fusarium sp., Phytophthora sp. |
Dodge, La Crosse
Dane |
|
VEGETABLES |
|
|
|
| Cucumber | Unidentified Viral Disease | Unknown | Dane |
| Pea | Root Rot | Pythium sp., Rhizoctonia sp. | Columbia |
| Potato (Tubers) | Elephant Hide
Fusarium Dry Rot
Leak
Pit Scab |
None
Fusarium sambucinum
Pythium sp.
Streptomyces scabies |
Dunn
Dunn, Portage
Portage
Dunn |
| Tomato | Rhizoctonia Stem Canker | Rhizoctonia solani | Clark |
For additional information on plant diseases and their control, visit the PDDC website at pddc.wisc.edu.