cole crop diseases
Alternaria Leaf Spot
Figure 1. Alternaria leaf spot lesion on a broccoli transplant. 
Figure 2. Alternaria leaf spot lesions 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. Black rot
Figure 1. Black rot has caused the lesions on this cabbage plant. 
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. 
Figure 7. Black rot on broccoli transplant. 
Figure 8. Black rot on nearly mature broccoli. Wirestem
Figure 1. Wirestem of broccoli. 
Figure 2. Wirestem of broccoli.