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

Brian Hudelson, Sean Toporek, Ann Joy and Joyce Wu

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 May 13, 2015 through May 29, 2015.

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

Forage Crops
Alfalfa, Root Rot, Fusarium sp., Richland

Fruit Crops
Apple, Cytospora Canker, Cytospora sp., Lafayette
Apple, Nectria/Tubercularia Canker, Tubercularia sp., LaFayette
Apple, Sphaeropsis Canker, Sphaeropsis sp., Marquette

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