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

Brian Hudelson, Ann Joy, Erin DeWinter and Joyce Wu, 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 October 5, 2013 through October 11, 2013.

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

FIELD CROPS

Soybean, Charcoal Rot, Macrophomina phaseolina, Ozaukee

Soybean, Fusarium Root Rot, Fusarium sp., Ozaukee

FRUIT CROPS,

Strawberry, Root/Crown Rot, Pythium sp., Rhizoctonia sp., Fusarium sp., Cylindrocarpon sp., Taylor

VEGETABLES,

Ground Cherry, Verticillium Wilt, Verticillium sp., Dodge

Potato, Bacterial Soft Rot, Pectobacterium carotovorum, Portage

Tomato, Late Blight , Phytophthora infestans, Polk

SOIL,

Alfalfa Soil, Aphanomyces Seedling Blight, Aphanomyces euteiches race 2, Dane

Soybean Soil, Soybean Cyst Nematode, Heterodera glycines, Brown, Buffalo, Dunn, Eau Claire, Marquette

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