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Holly Bushes

Q.Diseases of Holly Shrubs

Anonymous added on May 22, 2012 | Answered

Recently some parts of my 15-year-old holly shrubs (about 3 ft high) have been dying out. On other holly shrubs (I have a total of 6), there is a white substance on the underside of leaves. Last fall, and again this spring, I applied Holly Tone but perhaps not in enough quantity. I love the holly shrubs and want to save them.

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Certified GKH Gardening Expert
Answered on May 23, 2012

It sounds like you may have pests, perhaps scale or mealybugs. I would recommend neem oil. I have found it to be very effective against these pests. Here is more information on it: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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