Alternaria Leaf Spot In Cole Crops – Managing Leaf Spot On Cole Vegetables

By January 17, 2018Articles

Alternaria Leaf Spot In Cole Crops – Managing Leaf Spot On Cole Vegetables

By Mary H. Dyer, Master Naturalist and Master Gardener Two separate pathogens (A. brassicicola and A. brassicae) are responsible for alternaria leaf spot in cole crops, a fungal disease that wreaks havoc in cabbage, cauliflower, Brussels sprouts, broccoli and other cruciferous vegetables. However, symptoms and treatment of this hard-to-control disease are similar, regardless of the pathogen. Read on to learn more about leaf spot on cole vegetables. Signs of Alternaria Leaf Spot in Cole Crops The first sign of leaf spot on cole vegetables is small, brown or black spots on the leaves. Eventually, the spots enlarge into pale brown or tan circles. Dark, fuzzy or sooty spores and concentric, bull’s-eye rings may develop on the spots. Eventually, the leaves become papery and may take on a purplish color. A hole appears where the dead tissue drops out of the leaves. Causes of Leaf Spot on Cole Vegetables Causes for

Landscaping News

Author Landscaping News

More posts by Landscaping News

Leave a Reply