Compiled by Brian Hudelson and Dante Tauscheck

The following diseases/disorders were identified at the Plant Disease Diagnostics Clinic from April 5, 2025 through April 11, 2025.

 

 

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Broad-Leafed Woody Ornamentals

Plant:  Boxwood
Disease/Disorder:  Volutella Canker
Pathogen:  Volutella sp.
County:  Dane

Plant:  Crabapple
Disease/Disorder:  Cedar-Apple Rust
Pathogen:  Gymnosporangium juniperi-virginianae
County:  Washington

Plant:  Oak (Bur)
Disease/Disorder:  Diplodia Canker
Pathogen:  Diplodia sp.
County:  Eau Claire

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Field Crops

No New Diseases

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Forage Crops

No New Diseases

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Fruit Crops

No New Diseases

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Herbaceous Ornamentals

Plant:  Astilbe
Disease/Disorder:  Tobacco Rattle
Pathogen:  Tobacco rattle virus
County:  Dane

Plant:  Geranium
Disease/Disorder:  Black Leg
Pathogen:  Pythuim sp.
County:  Winnebago

Plant:  Geranium
Disease/Disorder:  Cucumber Mosaic
Pathogen:  Cucumber mosaic virus
County:  Jefferson

Plant:  Geranium
Disease/Disorder:  Root Rot
Pathogen:  Pythuim sp., Rhizoctonia sp.
County:  Winnebago

Plant:  Ranunculus
Disease/Disorder: Tobacco Rattle
Pathogen:  Tobacco rattle virus
County:  Jefferson

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Houseplants

No New Diseases

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Needled Woody Ornamentals

Plant:  Spruce (Unspecified)
Disease/Disorder:  Phomopsis Canker
Pathogen:  Phomopsis sp. 
County:  Winnebago

Plant:  Spruce (Unspecified)
Disease/Disorder:  Rhizosphaera Needle Cast
Pathogen:  Rhizosphaera kalkhoffii
County:  Winnebago

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Vegetable Crops

Plant:  Potato
Disease/Disorder:  Bacterial Soft Rot
Pathogen:  Pectobacterium carotovorum subsp. carotovorum, Pectobacterium parmentieri
County:  Waushara

Plant:  Potato
Disease/Disorder:  Common scab
Pathogen:  Streptomyces scabies
County:  Waushara

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Specialty Crops

No New Diseases

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Miscellaneous

No New Reports

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