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

Brian Hudelson, Ann Joy, Joyce Wu, Tom Hinsenkamp, and Catherine Wendt, Plant Disease Diagnostics Clinic

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 June 14, 2014 through June 20, 2014.

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

FIELD CROPS,

Corn, Anthracnose, Colletotrichum graminicola, Green

Corn, Seedling Blight, Fusarium spp., Green

FORAGE CROPS,

Alfalfa, Root Rot, Pythium sp., Fusarium sp., Green Lake

FRUIT CROPS,  

Apple, Fire Blight, Erwinia amylovora, Chippewa

Apple, Root Rot, Pythium sp., Fusarium sp., Chippewa

VEGETABLES,

Basil, Downy Mildew, Peronospora belbahrii, Dane

Garlic, Uncharacterized Viral Disease, Unidentified plant virus, Waukesha

Tomato, Bacterial Canker, Clavibacter michiganensis subsp. michiganensis, Monroe

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