Photinia Plants

Photinia Failure

Anonymous added on June 6, 2011 | Answered

I have a row of several photinias, three that are over 10 feet tall. One of them seems to be dying, as it looks droopy and is dropping all of its leaves. What could be the problem? I live in Monterey County, Calif.

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Certified GKH Gardening Expert
Answered on June 7, 2011

Photinia is very susceptible to the fungus leaf spot, called Entomosporium, that can defoliate photinia plants. Plant photiniain 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. Not sure if this is the problem (wouldn't be water issue as the others are seemingly ok), but treating with fungicide wouldn't hurt. It may actually help prevent it from spreading to the other shrubs if it is in fact a fungal issue.

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