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 2, 2014 through August 8, 2014.
Plant/Sample Type, Disease/Disorder, Pathogen, County
FIELD CROPS,
Corn, Goss’ Wilt, Clavibacter michiganensis subsp. nebraskensis, Grant
Soybean, Charcoal Rot, Macrophomina phaseolina, Sauk
Soybean, Phytophthora Root Rot, Phytophthora sp., Columbia, Sauk, Jefferson
Soybean, Stem Canker, Phomopsis sp., Columbia, Jefferson
FRUIT CROPS,
Apple, Cedar-Apple Rust, Gymnosporangium sp., Grant
Apple, Fire Blight, Erwinia amylovora, Brown
Apple, Frogeye Leaf Spot, Botryosphaeria obtuse, Grant/Wood
Apple, Phomopsis Canker, Phomopsis sp., Wood
Apple, Sooty Mold, None, Brown
Blueberry, Powdery Mildew, Oidium sp., Eau Claire
VEGETABLES,
Cucumber, Root Rot, Pythium sp., Dane
Melon, Anthracnose, Colletotrichum orbiculare, Dane
Tomato, Septoria Leaf Spot, Septoria lycopersici, Dodge, Rock, Sauk
Tomato, Verticillium Wilt, Verticillium sp., Rock
SOIL,
Soybean Soil, Soybean Cyst Nematode, Heterodera glycines, Dane, Rock, Pierce, Sheboygan
For additional information on plant diseases and their control, visit the PDDC website at pddc.wisc.edu.