Brian Hudelson, Ann Joy, Erin DeWinter and Joyce Wu, 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 24, 2013 through August 30, 2013.
Plant/Sample Type, Disease/Disorder, Pathogen, County
Corn, Common Rust, Puccinia sorghi, Dane
Soybean, Anthracnose, Colletotrichum truncatum, Rock
Soybean, Brown Spot, Septoria glycines, Calumet, Rock
Soybean, Cercospora Leaf Blight, Cercospora kikuchii, Sheboygan
Soybean, Frogeye Leaf Spot, Cercospora sojina, Rock
Soybean, Ozone Injury, None, Calumet
Soybean, Stem Canker, Diaporthe phaseolorum, Rock
Soybean, Target Spot, Corynespora cassiicola, Rock
FRUIT CROPS,
Apple, Brown Rot, Monilinia sp., Columbia
Grape, Berry Rot, Miscellaneous yeasts, Vernon
Grape, Bird’s Eye Rot, Sphaceloma ampelinum, Vernon
Grape, Blue Mold, Penicillium sp., Vernon
Raspberry, Anthracnose, Sphaceloma necator, Pierce
Raspberry, Root/Crown Rot, Phytophthora sp., Pythium sp., Fusarium sp.,Cylindrocarpon sp., Dane, Lincoln
VEGETABLES,
Garlic, Stem and Bulb/Bloat Nematode, Ditylenchus dipsaci, Dane
Melon, Alternaria Leaf Spot, Alternaria sp., Crawford
Melon, Cercospora Leaf Spot, Cercospora sp., Crawford
Melon, Fusarium Wilt, Fusarium oxysporum, Waushara
Parsnip, Pseudocercosporella Leaf Blight, Pseudocercosporella sp., Crawford
Tomato, Septoria Leaf Spot, Septoria lycopersici, La Crosse
Zucchini, Fusarium Wilt, Fusarium oxysporum, Green Lake
SPECIALTY CROPS,
Hop, Gray Mold, Botrytis sp., Dodge
SOIL,
Alfalfa Soil, Aphanomyces Seedling Blight, Aphanomyces euteiches race 1, Manitowoc
Soybean Soil, Soybean Cyst Nematode, Heterodera glycines, Buffalo, Jefferson, Rock, Walworth, Washington
For additional information on plant diseases and their control, visit the PDDC website at pddc.wisc.edu.