They are very small at first. Spray as recommended for anthracnose to control the disease. Groups of small dark fruiting structures form in spots on the bottom of the leaf, while the upper side may show only a slight spotty discoloration. By the time the spots on the top turn brown, defoliation has begun. Spray as recommended for anthracnose to control the disease.
Spots are irregular to almost circular, three to seven mm in width.
Spray as recommended for anthracnose. The orange swellings are more common early in the growing season, particularly in the Gulf Coast area. Spraying with fungicides at two to three week intervals during early spring will control the disease. Ash is moderately susceptible to the cotton root rot fungus, particularly during the younger stages of growth. Infection usually takes place through wounds caused by lawn mowers, pruning, or strong winds.