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 August 17, 2013 through August 23, 2013.
Plant/Sample Type, Disease/Disorder, Pathogen, County
FIELD CROPS,
Corn, Common Rust, Puccinia sorghi, Dane
Soybean, Dicamba Injury, None, Waupaca
Soybean, Root Rot, Pythium sp., Fusarium spp., Dodge, Fond du Lac, Lafayette, Marathon, St. Croix
Soybean, Sudden Death Syndrome, Fusarium solani, Dodge
Soybean, Target Spot, Corynespora cassiicola, Fond du Lac
FORAGE CROPS,
Alfalfa, Aphanomyces Root Rot, Aphanomyces euteiches, Dane
Alfalfa, Crown Rot, Fusarium spp., Dane
Alfalfa, Phytophthora Root Rot, Phytophthora sp., Dane
Alfalfa, Pythium Root Rot, Pythium sp., Dane
FRUIT CROPS,
Apple, Root/Crown Rot, Fusarium sp., Waukesha
Apple, Sphaeropsis Canker, Sphaeropsis sp., Waukesha
Cherry, Cherry Leaf Spot, Blumeriella jaapii, Shawano
Cherry, Powdery Mildew, Podosphaera clandestina, Shawano
Raspberry, Root/Crown Rot, Phytophthora sp., Dane
VEGETABLES,
Sweet Corn, Eyespot, Aureobasidium zeae, Green Lake
Tomato, Fusarium Wilt, Fusarium oxysporum, Will (IL)
Tomato, Late Blight, Phytophthora infestans, Sauk
For additional information on plant diseases and their control, visit the PDDC website at pddc.wisc.edu.