Q.Hole In Privet Tree. Should I Seal It To Prevent Problems.
It is an old hole caused by removal of a limb.

GKH_Susan
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on July 23, 2026
It is no longer recommended to seal a tree hollow. If you feel it is needed, this article tells you how.
https://www.gardeningknowhow.com/ornamental/trees/tgen/patching-tree-hole.htm
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