Compiled by Brian Hudelson and Dante Tauscheck
The following diseases/disorders were identified at the Plant Disease Diagnostics Clinic from November 15, 2025 through November 21, 2025.
Broad-Leafed Woody Ornamentals
Plant: Oak (Bur)
Disease/Disorder: Phomopsis Canker
Pathogen: Phomopsis sp.
County: Waukesha
Plant: Oak (Unspecified)
Disease/Disorder: Phytophthora Root Rot
Pathogen: Phytophthora sp.
County: Waukesha
Field Crops
No New Diseases
Forage Crops
No New Diseases
Fruit Crops
No New Diseases
Herbaceous Ornamentals
Plant: Goat’s Beard
Disease/Disorder: Crown Gall
Pathogen: Agrobacterium tumefaciens
County: Ottawa (MI)
Houseplants
No New Diseases
Needled Woody Ornamentals
No New Diseases
Vegetable Crops
Plant: Potato
Disease/Disorder: Bacterial Soft Rot
Pathogen: Pectobacterium carotovorum subsp. carotovorum, Pectobacterium parmentieri
County: Pulaski (IN)
Specialty Crops
No New Diseases
Miscellaneous
No New Entries