Holly Bushes
Q.

Black Deposit on Holly

Anonymous added on March 14, 2014 | Answered

I have two standard hollies in pots. One has started to develop a black sooty deposit on some of its leaves which easily wipes off. No insect pests are visible. Is this likely to be terminal?

A.
A.Answers to this queston: Add Answer
Nikki
Certified GKH Gardening Expert
Answered on March 14, 2014

It sounds like sooty mold, which is a symptom of several kinds of pests that can attack hollies. I recommend treating the plants with neem oil. This will kill any pests on the plant and treat the sooty mold as well. This article will help: https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm

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