Our photinia seems to have a fungus and looks dead. Will heavy pruning and/or spraying help?
Certified GKH Gardening Expert
Photinia is very susceptible to the fungus leaf spot, called Entomosporium, that can defoliate photinia plants. Plant photinia in full sun and provide good air circulation. Remove and destroy fallen leaves, prune off diseased twigs. Avoid overhead irrigation. Fungicide sprays (copper-based products) are also generally necessary for this disease, beginning from bud break and applied every ten to fourteen days until all foliage has matured. Mature foliage is no longer susceptible to infection.
This article mat also help: https://www.gardeningknowhow.com/ornamental/shrubs/photinia/growing-red-tip-photinia.htm