leaf fungus

What Causes Entomosporium Leaf Spot? Entomosporium leaf spot, caused by the fungus Entomosporium mespili (formerly E. maculatum) , is a common disease of various woody ornamentals in the family Rosaceae. In Louisiana landscapes, however, it is most commonly a problem on Indian hawthorn (Raphiolepis indica) and red tip photinia (Photinia fraseri). What is the best