Compiled by Brian Hudelson and Hulubanche Kassa
The following diseases/disorders were identified at the Plant Disease Diagnostics Clinic from October 24, 2026 through October 30, 2026.
Broad-Leafed Woody Ornamentals
Plant: Boxwood
Disease/Disorder: Volutella Canker
Pathogen: Volutella sp.
County: Kenosha
Field Crops
No New Diseases
Forage Crops
No New Diseases
Fruit Crops
No New Diseases
Herbaceous Ornamentals
Plant: Phlox
Disease/Disorder: Anthracnose
Pathogen: Colletotrichum sp.
County: Dane
Plant: Phlox
Disease/Disorder: Herbicide Damage
Pathogen: None
County: Dane
Plant: Phlox
Disease/Disorder: Powdery Mildew
Pathogen: Oidium sp.
County: Dane
Houseplants
No New Diseases
Needled Woody Ornamentals
Plant: Spruce (Unspecified)
Disease/Disorder: Phomopsis Canker
Pathogen: Phomopsis sp.
County: Calumet
Plant: Spruce (Unspecified)
Disease/Disorder: Rhizosphaera Needle Cast
Pathogen: Rhizosphaera kalkhoffii
County: Calumet
Vegetable Crops
Plant: Potato
Disease/Disorder: Bacterial Soft Rot
Pathogen: Pectobacterium atrosepticum, Pectobacterium carotovorum subsp. carotovorum, Pectobacterium parmentieri
County: Waushara
Plant: Potato
Disease/Disorder: Black Dot
Pathogen: Colletotrichum coccodes
County: Waushara
Plant: Potato
Disease/Disorder: Black Scurf
Pathogen: Rhizoctonia sp.
County: Waushara
Plant: Potato
Disease/Disorder: Fusarium Dry Rot
Pathogen: Fusarium sp.
County: Waushara
Plant: Potato
Disease/Disorder: Silver Scurf
Pathogen: Helminthosporium solani
County: Waushara
Specialty Crops
No New Diseases
Miscellaneous
No New Entries