UW-Madison/Extension Plant Disease Diagnostic Clinic (PDDC) Update

Brian Hudelson, Sean Toporek, and Ann Joy

The PDDC receives samples of many plant and soil samples from around the state. The following diseases/disorders have been identified at the PDDC from April 30, 2016 through May 6, 2016.

Plant/Sample Type, Disease/Disorder, Pathogen, County

Specialty Crops
Hop, Carlavirus, Unidentified carlavirus, Dane

Vegetables
Lettuce, Downy Mildew, Bremia lactucae, Ozaukee
Lettuce, Powdery Mildew, Oidium sp., Ozaukee
Potato, Fusarium Dry Rot, Fusarium oxysporum, Oneida
Tomato, Cucumber Mosaic, Cucumber mosaic virus, Clark

For additional information on plant diseases and their control, visit the PDDC website at pddc.wisc.edu.

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