Guess the Disease...

Diagnosis: Black Rot of Crucifers

What is black rot?

Black rot is a potentially lethal bacterial disease that affects cruciferous vegetables such as broccoli, Brussels sprouts, cabbage, cauliflower, kale, rutabaga and turnip, as well as cruciferous weeds such as shepherd’s purse and wild mustard. Black rot occurs worldwide wherever cruciferous plants are grown and makes cruciferous vegetables unfit for the marketplace or the table.

Learn more about this disease in our fact sheet.

The diagnosis is provided courtesy of Brian Hudelson of the PDDC - Plant Disease Diagnostic Lab -

This photo is provided courtesy of Amanda Gevens of the UW Vegetable Pathology Lab -