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

Brian Hudelson, Sean Toporek, Catherine Wendt, Claire Wisniewski, 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 October 24, 2015 through October 30, 2015.

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

Field Crops
Soybean, Anthracnose, Colletotrichum sp., Walworth
Soybean, 
Charcoal Rot, Macrophomina phaseolina, Walworth
Soybean, Root Rot, Phythium sp., Fusarium sp., Walworth
Soybean, Sclerotinia Stem Rot, Sclerotina sclerotiorium, Walworth
Soybean, Stem Canker, Diaporthe phaseolorum, Walworth

Fruit Crops
Cherry, Cherry Leaf Spot, Phloeosporella padi, Walworth

Vegetables
Tomato, Late Blight, Phytophthora infestans, Milwaukee

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