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Top Questions About Photinia Plants

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Questions About Photinia Plants

  • Answered by
    Nikki on
    April 7, 2011
    Certified Expert
    A.

    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

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  • Answered by
    Nikki on
    April 8, 2011
    Certified Expert
    A.

    Treat the plant with neem oil. It is an effective fungicide and safe to use. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

    I would definitely prune and remove the dead growth and any foliage, especially that which may be on the ground. The diseased debris will need to be destroyed in order that the fungus does not reinfect the plant or infect any others nearby.

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  • Answered by
    Nikki on
    April 10, 2011
    Certified Expert
    A.

    Either way is fine; however, you should be more cautious when using electric trimmers to prevent any 'chewing up' of plant foliage. Generally, hedge clippers provide a cleaner cut.

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  • Answered by
    Heather on
    April 17, 2011
    Certified Expert
    A.

    Neem oil may also be effective, both as an organic fungicide and pesticide. These articles should help: https://www.gardeningknowhow.com/ornamental/shrubs/photinia/growing-red-tip-photinia.htm
    https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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  • Answered by
    roseman on
    April 17, 2011
    A.

    There are a couple sprays that should help with this problem. One is called Banner Maxx, its cheaper generic is called Honor Guard. An earth friendly more organic fungicide would be one called Green Cure.

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  • Answered by
    Nikki on
    May 10, 2011
    Certified Expert
    A.

    You can trim the dead/diseased growth off and treat the shrub with neem oil, which is both an effective pesticide as well as fungicide. Here is more info: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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  • Answered by
    Nikki on
    May 16, 2011
    Certified Expert
    A.

    Prune photinia sometime during early spring through early fall--late spring, early summer being the best time. Unruly plants can be cut back 6 inches to the ground and will come back--annual pruning will help keep them maintained and manageable. They can take a pretty severe pruning, so you can cut them back to a manageable size without harming them.

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  • Answered by
    Heather on
    June 3, 2011
    Certified Expert
    A.

    There are many reasons that this could be happening. My gut reaction is that it is a fungus. I would treat the plant with a fungicide.

    Also, check to make sure it is getting enough water. This is another common reason for the leaves to curl.

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