Compiled by Brian Hudelson and Dante Tauscheck
The following diseases/disorders were identified at the Plant Disease Diagnostics Clinic from June 7, 2025 through June 13, 2025.
Broad-Leafed Woody Ornamentals
Plant: Boxwood
Disease/Disorder: Volutella Canker
Pathogen: Volutella sp.
County: Brown
Plant: Buckthorn (Unspecified)
Disease/Disorder: Crown Rust
Pathogen: Puccinia coronata
County: Washington
Plant: Dogwood (Unspecified)
Disease/Disorder: Botryosphaeria Canker
Pathogen: Botryosphaeria sp.
County: Ozaukee
Plant: Oak (Red)
Disease/Disorder: Anthracnose
Pathogen: Discula sp.
County: Waukesha
Plant: Oak (Unspecified)
Disease/Disorder: Anthracnose (Suspected)
Pathogen: Discula sp.
County: Waukesha
Plant: Redbud
Disease/Disorder: Cold Injury (Suspected)
Pathogen: None
County: Dane
Field Crops
No New Diseases
Forage Crops
No New Diseases
Fruit Crops
No New Diseases
Herbaceous Ornamentals
Plant: Peony
Disease/Disorder: Root/Crown Rot
Pathogen: Phytophthora sp.
County: Dane
Houseplants
No New Diseases
Needled Woody Ornamentals
Plant: Arborvitae
Disease/Disorder: Root/Crown Rot
Pathogen: Pythium sp.
County: Milwaukee
Plant: Juniper
Disease/Disorder: Winter Burn (Suspected)
Pathogen: None
County: Washington
Plant: Juniper
Disease/Disorder: Winter Burn
Pathogen: None
County: Waukesha
Plant: Pine (Scots)
Disease/Disorder: Diplodia Shoot Blight and Canker
Pathogen: Diplodia sp.
County: Dane
Vegetable Crops
No New Diseases
Specialty Crops
No New Diseases
Miscellaneous
No New Reports