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 September 13, 2014 through September 19, 2014.
Plant/Sample Type, Disease/Disorder, Pathogen, County
FIELD CROPS,
Corn, Common Rust, Puccinia sorghi, Pierce
Corn, Gibberella Stalk Rot, Fusarium graminearum, Rock
Corn, Goss’ Wilt, Clavibacter michiganensis subsp. nebraskensis, Lincoln, Trempealeau
Corn, Gray Leaf Spot, Cercospora sp., Lafayette, Pierce
Corn, Northern Corn Leaf Blight, Exserohilum turcicum, Lafayette, Pierce
Soybean, Brown Spot, Septoria glycines, Eau Claire, Sheboygan
Soybean, Brown Stem Rot, Phialophora gregata, Eau Claire
Soybean, Pod and Stem Blight, Phomopsis sp., Eau Claire, Sauk
Soybean, Soybean Cyst, Heterodera glycines, Eau Claire
FORAGE CROPS,
Alfalfa, Aphanomyces Root Rot, Aphanomyces euteiches, Marathon
Alfalfa, Fusarium Root Rot, Fusarium sp., Marathon
Alfalfa, Phytophthora Root Rot, Phytophthora sp., Marathon
Alfalfa, Rhizoctonia Root Rot, Rhizoctonia solani, Marathon
FRUIT CROPS,
Apple, Sphaeropsis Canker, Sphaeropsis sp., Marathon
Apple, Cedar-Apple Rust, Gymnosporangium sp., Sauk
Apple, Scab, Venturia inaequalis, Sauk
Cranberry, Blueberry Shock, Blueberry shock virus, Wood
Cranberry, Tobacco Streak, Tobacco streak virus, Wood
Grape, Anthracnose, Sphaceloma ampelinum, Dodge
Grape, Black Rot, Phyllosticta ampelicida, Dodge
VEGETABLES,
Carrot, Cercospora Leaf Blight, Cercospora sp., Dane
Cucumber, Downy Mildew, Pseudoperonospora cubensis, Calumet
Muskmelon, Anthracnose, Colletotrichum sp., Dane
Pepper, Bacterial Canker, Clavibacter michiganensis subsp. michiganensis, Portage
Pepper, Root Rot, Pythium sp., Portage
Potato, Late Blight, Phytophthora infestans, Unknown
Pumpkin, Downy Mildew, Pseudoperonospora cubensis, Calumet
Tomato, Anthracnose, Colletotrichum sp., Dane
Tomato, Early Blight, Alternaria solanit, Calumet
Tomato, Late Blight, Phytophthora infestans, Brown, Racine
Tomato, Septoria Leaf Spot , Septoria lycopersici, Dane, Racine
For additional information on plant diseases and their control, visit the PDDC website at pddc.wisc.edu.