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 July 19, 2014 through July 25, 2014.
Plant/Sample Type, Disease/Disorder, Pathogen, County
FIELD CROPS,
Soybean, Bacterial Blight, Pseudomonas savastanoi pv. Glycinea, Lafayette
Soybean Bacterial Blight, Cercospora Blight, Cercospora kikuchii, Washington
Soybean Bacterial Blight, Downy Mildew, Peronospora manshurica, Washington
Soybean Bacterial Blight, Phytophthora Root Rot, Phytophthora sp., Lafayette
FORAGE CROPS,
Alfalfa, Aphanomyces Root Rot, Aphanomyces euteiches,, Vernon, Allamakee (IA)
Alfalfa, Root/Crown Rot, Fusarium sp., Pythium sp., Rhizoctonia sp., Vernon, Allamakee (IA)
FRUIT CROPS,
Apple, Root Rot, Pythium sp., Door
Apple, Sphaeropsis Canker, Sphaeropsis sp., Jackson, Marinette
Apple, Winter Injury, None, Door, Jackson,
Cherry, Powdery Mildew, Oidium sp., Dane
Cranberry, Protoventuria Early Leaf Spot, Protoventuria sp., Wood
Grape, Downy Mildew, Plasmopara viticola, Dane
VEGETABLES,
Beet, Cercospora Leaf Spot, Cercospora beticola, Fond du Lac
Cabbage, Black Rot, Xanthomonas campestris, Outagamie
Garlic, Fusarium Basal Plate Rot, Fusarium oxysporum, Jackson
Onion, Fusarium Basal Plate Rot, Fusarium oxysporum, Jackson
Onion, Stemphylium Leaf Blight, Stemphylium sp., Green Lake
Tomato, Septoria Leaf Spot, Septoria lycopersici, Dane
For additional information on plant diseases and their control, visit the PDDC website at pddc.wisc.edu.