burford holly

alene.gardenerApril 3, 2010

We have 7 - 8 ft. 15 year old Burford hollies in our backyard serving as a hedge. We just noticed that the bottom leaves are covered in black and the back of them has small black spots. I can scrape the black off with my fingernail. Do you know what this is and how we might get rid of this? We have had a very wet and snowy winter here. Might this contribute? Thank you.

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rhizo_1 (North AL) zone 7

The black stuff could be black sooty mold, but would like to see an image to confirm. Burford holly can be a host to different kinds of scale insects, which contribute the excretion (called honey dew) that the black mold grows on.

I've also seen very heavy growths of BSM on plants that were growing underneath the canopy of a larger plant infested with scale or aphids.

Anyway, I'd like to see a picture of these black spots as well as the black stuff on the leaves. Look along the stems as well as the leaves for little bumps...those would be the scale insects.

    Bookmark   April 4, 2010 at 6:17PM
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