Figure 1. Alternaria leaf spot lesion on a broccoli transplant.
Figure 2. Alternaria leaf spot of several different sizes can be observed.
Figure 3. The roughly round area of diseased broccoli transplants observed here represents a focus of disease. Alternaria leaf spot probably started on a transplant in the center of this area and spread to surrounding seedlings.
Figure 4. Alternaria leaf spot lesions on a mature broccoli leaf.
Figure 5. Alternaria leaf spot on kale.
Figure 1. Black rot has caused the lesions on this cabbage plant. Note healthy plant on the right.
Figure 2. Close up of black rot on cabbage leaf.
Figure 3. Typical V-shaped lesion of black rot on cabbage leaf.
Figure 4. Initial lesion of black rot on cabbage.
Figure 5. Initial lesions of black rot on nearly mature cabbage.
Figure 6. A row of cabbage severely affected by black rot.