Compiled by Brian Hudelson and Dante Tauscheck
The following diseases/disorders were identified at the Plant Disease Diagnostics Clinic from April 12, 2025 through April 18, 2025.
Broad-Leafed Woody Ornamentals
Plant: Boxwood
Disease/Disorder: Volutella Canker
Pathogen: Volutella sp.
County: Dane
Plant: Honey Locust
Disease/Disorder: White Rot
Pathogen: Ganoderma applanatum, Ganoderma sessile
County: Milwaukee
Plant: Oak (Bur)
Disease/Disorder: Bur Oak Blight
Pathogen: Tubakia iowensis
County: Dane
Field Crops
No New Diseases
Forage Crops
No New Diseases
Fruit Crops
No New Diseases
Herbaceous Ornamentals
Plant: Checkerbloom (Sidalcea)
Disease/Disorder: Potyvirus Disease
Pathogen: Unspecified potyvirus
County: Jefferson
Houseplants
No New Diseases
Needled Woody Ornamentals
Plant: Pine (White)
Disease/Disorder: White Pine Blister Rust
Pathogen: Cronartium ribicola
County: Dane
Vegetable Crops
Plant: Broccolini
Disease/Disorder: Root Rot
Pathogen: Pythium sp.
County: Waukesha
Plant: Broccolini
Disease/Disorder: Wire Stem
Pathogen: Rhizoctonia solani
County: Waukesha
Plant: Pepper
Disease/Disorder: Anthracnose
Pathogen: Colletotrichum sp.
County: Jefferson
Plant: Pepper
Disease/Disorder: Sunburn
Pathogen: None
County: Jefferson
Plant: Tomato
Disease/Disorder: Bacterial Speck (Suspected)
Pathogen: Pseudomonas syringae pv. tomato
County: Waukesha
Plant: Tomato
Disease/Disorder: Septoria Leaf Spot (Suspected)
Pathogen: Septoria lycopersici
County: Waukesha
Specialty Crops
No New Diseases
Miscellaneous
No New Reports