Bur Oak

Asked August 28, 2020, 1:32 PM EDT

I have a younger Bur Oak, it is about 12 ft tall and the trunk is about 20" around. On of the branches has split and is still barely attached to the limb. I was wondering what I should do to prevent any kind of infection or damage? And the proper way to remove the branch. I can send pictures if needed.

Genesee County Michigan

1 Response


On the branches that have split and are still barely attached to the limb, please perform the below steps in the order they are listed:

I would disinfect your pruning tool(s) prior to each cut - See Disinfecting Pruning Tools at this link: https://sfyl.ifas.ufl.edu/media/sfylifasufledu/baker/docs/pdf/horticulture/DisinfectingPruningTools.pdf

Perform your pruning cut(s) as outlined in this reference "How to Prune Trees - USDA Pages 10-14 at this link: https://www.fs.usda.gov/naspf/sites/default/files/publications/htprunerev2012.pdf

Immediately paint any pruning cuts with sealing paint (shellac or white latex paint). Trees that must be pruned now, for reasons of storm damage or otherwise should be immediately treated with a tree wound dressing or latex-based paint to seal the wound. It is very important that the fresh wounds are treated immediately because the insects that carry spores of the pathogens are often attracted to these wounds within a very short time. Tree paints are normally not recommended for general use, but using these products in this situation can protect trees from oak wilt. The reference is listed below.


Stop pruning oak trees now to avoid oak wilt - Mary Wilson, Michigan State University Extension - April 7, 2017 - Avoid infecting valuable oak trees with the lethal oak wilt disease by not pruning during the growing season. At this link: https://www.canr.msu.edu/news/stop_pruning_oak_trees_now_to_avoid_oak_wilt_1

Hope this helps!!