Compiled by Brian Hudelson and Dante Tauscheck
The following diseases/disorders were identified at the Plant Disease Diagnostics Clinic from December 6, 2025 through December 12, 2025.
Broad-Leafed Woody Ornamentals
Plant: Boxwood
Disease/Disorder: Fusarium Canker
Pathogen: Fusarium sp.
County: Waukesha
Plant: Boxwood
Disease/Disorder: Volutella Canker
Pathogen: Volutella sp.
Counties: Milwaukee, Waukesha
Plant: Oak (Unspecified)
Disease/Disorder: Brittle Cinder (Suspected)
Pathogen: Kretzschmaria deusta
County: Dane
Field Crops
No New Diseases
Forage Crops
No New Diseases
Fruit Crops
Plant: Raspberry
Disease/Disorder: Root/Crown Rot
Pathogen: Rhizoctonia sp.
County: Dane
Plant: Strawberry
Disease/Disorder: Phomopsis Leaf Blotch
Pathogen: Phomopsis sp.
County: Dane
Plant: Strawberry
Disease/Disorder: Root Rot
Pathogens: Phytophthora sp., Pythium sp.
County: Dane
Herbaceous Ornamentals
Plant: Aster
Disease/Disorder: Leafy Gall
Pathogen: Rhodococcus facians
County: Ottawa (MI)
Houseplants
No New Diseases
Needled Woody Ornamentals
No New Diseases
Vegetable Crops
No New Diseases
Specialty Crops
No New Diseases
Miscellaneous
No New Entries