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 9, 2014 through August 15, 2014.
Plant/Sample Type, Disease/Disorder, Pathogen, County
FIELD CROPS,
Corn, Northern Corn Leaf Blight, Exserohilum turcicum, Sauk
Soybean, Charcoal Rot, Macrophomina phaseolina, Adams
Soybean, Soybean Cyst Nematode, Heterodera glycines, Adams
FRUIT CROPS,
Apple, Frogeye Leaf Spot, Botryosphaeria obtuse, Columbia, La Crosse
Apple, Phomopsis Canker, Phomopsis sp., Columbia
Apple, Winter Injury, None, Buffalo, Columbia
Cranberry, Bitter Rot, Colletotrichum acutatum, Wood
Cranberry, Early Rot, Phyllosticta vacinii, Wood
VEGETABLES,
Basil, Downy Mildew, Peronospora belbahrii, Kenosha
Melon, Cercospora Leaf Spot, Cercospora sp., Green
Onion, Downy Mildew, Peronospora destructor, Jefferson
Onion, Stemphylium Leaf Blight, Stemphylium sp., Jefferson
Potato, Late Blight, Phytophthora infestans, Portage
Pumpkin, Phytophthora Root and Crown Rot, Phytophthora sp., Rock
Squash, Angular Leaf Spot, Pseudomonas syringae pv. lachrymans, Sauk
Tomato, Bacterial Canker, Clavibacter michiganensis ps. Michiganensis, Wood
Tomato, Late Blight, Phytophthora infestans, Racine
Tomato, Yellow Top, None, Dodge
SOIL,
Soybean Soil, Soybean Cyst Nematode, Heterodera glycines, Fond du Lac, Iowa, Juneau
For additional information on plant diseases and their control, visit the PDDC website at pddc.wisc.edu.