Managing Entomosporium Leaf Spot on Red Tip Photinia

Disease Identification

Red tip photinia (Photinia × fraseri) showing multicolored spots (red, orange, brown, black) and leaf drop has Entomosporium leaf spot. It flares in cool, wet springs. Newly planted bushes nearby are unaffected due to less exposure or better vigor.

Treatment Strategy

Apply fungicide (Banner MAXX/propiconazole) at bud break next spring. For current season, apply ASAP if symptoms are early. Fertilize with organic amendments (compost tea, seaweed, humic acid) to boost recovery.

Long-Term Management

Prune to improve air flow. Avoid overhead irrigation. Rake and destroy fallen leaves. Consider replacing severely susceptible plants with resistant cultivars.