QUIZ – What stem disease is this?

As canola crop matures and dries down toward harvest, diseases become easier to identify. Can you identify the three common stem diseases – blackleg, sclerotinia stem rot and verticillium stripe? Select which disease caused the symptoms in the four images below.

1. August 10 quiz - image 1
2. August 10 quiz - image 2a
3. August 10 quiz - image 3
4. August 10 quiz - image 4