Brian Hudelson, Sean Toporek, Ann Joy and Joyce Wu
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 July 4, 2015 through July 10, 2015.
Plant/Sample Type, Disease/Disorder, Pathogen, County
Field Crops
Barley, Net Blotch, Drechslera teres, Columbia
Corn, Eyespot, Kabatiella zeae, Iowa
Soybean, Root Rot, Phytophthora sp., Pythium sp., Rhizoctonia sp., Fusarium sp., Buffalo, Sheboygan, Winnebago
Forage Crops
Alfalfa, Root Rot, Rhizoctonia sp., Pythium sp., Fusarium sp., Chippewa
Specialty Crops
Hops, Root/Crown Rot, Fusarium sp., Pythium sp., Dane
Vegetables
Cabbage, Black Rot, Xanthomonas campestris pv. campestris, Fillmore (MN)Cucurbit (Unspecified), Angular Leaf Spot, Pseudomonas syringae pv. lachrymans, Vernon
Kale, Black Rot, Xanthomonas campestris pv. campestris, Fillmore (MN)
Pepper, Syringae Leaf Spot, Pseudomonas syringae, Rock
Squash (Butternut), Angular Leaf Spot, Pseudomonas syringae pv. lachrymans, Dane
Tomato, Bacterial Canker, Clavibacter michiganensis subsp. michiganensis, Outagamie
Tomato, Bacterial Speck, Pseudomonas syringae pv. Tomato, Rock, Waukesha
Tomato, Bacterial Spot, Xanthomonas sp., Waukesha
Tomato, Root Rot, Rhizoctonia sp., Pythium sp., Fusarium sp., Outagamie
Tomato, Septoria Leaf Spot, Septoria lycopersici, Dane
Weeds
Shepherd’s-Purse, Downy Mildew, Hyaloperonospora parasitica, Marinette
Shepherd’s-Purse, White Rust, Albugo candida, Marinette
For additional information on plant diseases and their control, visit the PDDC website at pddc.wisc.edu