Holly Bushes
Q.

Black Grainy Substance on Holly Leaves

Anonymous added on June 1, 2011 | Answered

Many of the leaves on my holly bushes are covered with a grainy black coating. Leaves are dying. How can I treat this?

A.
A.Answers to this queston: Add Answer
Nikki
Certified GKH Gardening Expert
Answered on June 2, 2011

The black substance sounds like a sooty mold issue, most often brought on by pests. Neem oil can also be used to get rid of the pests as well as the fungus. This article will help: https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm

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