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 August 16, 2014 through August 22, 2014.
Plant/Sample Type, Disease/Disorder, Pathogen, County
FIELD CROPS,
Corn, Goss’ Wilt, Clavibacter michiganensis subsp. michiganensis, Lafayette
Soybean, Pod and Stem Blight, Phomopsis sp., Buffalo
Soybean, Root Rot, Rhizoctonia solani, Pythium sp., Fusarium spp., Green Lake, Sheboygan
FRUIT CROPS,
Apple, Cytospora Canker, Cytospora sp., Florence
Cranberry, Early Rot, Phyllosticta vacinii, Wood
Raspberry, Cane Blight, Coniothyrium fuckelii, Racine
Strawberry, Root Rot, Rhizoctonia solani, Pythium sp., Fusarium spp., Waupaca
VEGETABLES,
Basil, Downy Mildew, Peronospora belbahrii, Washington
Dill, Cercosporoid Leaf Blight, Passalora punctum, Barron
Pepper, Bacterial Spot, Xanthomonas sp., Shawano
Squash (Winter), Phytophthora Crown and Root Rot, Phytophthora capsici, Racine
Tomato, Black Dot Root Rot, Colletotrichum sp., Dane
Tomato, Bacterial Canker, Clavibacter michiganensis ps. Michiganensis, Racine
Tomato, Dagger Nematode*, Xiphinema sp., Dane
Tomato, Septoria Leaf Spot, Septoria lycopersici, Portage, Racine, Shawano
SPECIALTY,
Ginseng, Rusty Root, Rhexocercosporidium sp., Delta (MI)
Tobacco, Barn Rot, Rhizopus sp., Rock
*Diagnosis performed by the UW-Madison Nematode Diagnostic Lab
For additional information on plant diseases and their control, visit the PDDC website at pddc.wisc.edu.