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 April 18, 2015 through April 24, 2015.

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

FORAGE CROPS,

Alfalfa, Fusarium Root/Crown Rot, Fusarium sp., Ogle (IL)

Alfalfa, Phytophthora Root Rot, Phytophthora sp., Ogle (IL)

Alfalfa, Pythium Root Rot, Pythium sp., Ogle (IL)

FRUIT CROPS,

Apple, Sapwood Rot, Schizophyllum commune, Jefferson

Blueberry, Gloeosporium Canker, Gloeosporium sp., Pierce

Blueberry, Phomopsis Canker, Phomopsis sp., Pierce

SOIL,

Soybean Soil, Soybean Cyst Nematode, Heterodera glycines, Dane

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