How can I cover a damaged spot on a tree trunk?

If the tree bark is coming off, just go get some tree paint or use an enamel paint on the area. It will seal the boo boo.

Hi Nelda, is it because it is ugly, or due to worry over the damage killing the tree? Hope this helps you out,

https://www.youtube.com/watch?v=MqS6TAOmsRg

I would not put mosaic tiles on it, it may kill the tree. Here is an idea to help you out

https://garden.lovetoknow.com/trees/how-save-tree-damaged-bark

I wouldn't use anything but paint.

Hello there,

You could always make a notice or picture etc. on board and screw that into the tree to protect the area and cover the damage.........Or maybe call in a Tree Expert!

Best wishes.

Research indicates that wound dressings (materials such as tar or paint) do not prevent decay and may even interfere with wound closure. Wound dressings can have the following detrimental effects:

Prevent drying and encourage fungal growth

Interfere with formation of wound wood or callus tissue

Inhibit compartmentalization

Possibly serve as a food source for pathogens

For these reasons, applying wound dressings is not recommended. Trees, like many organisms, have their own mechanisms to deter the spread of decay organisms, insects and disease.Tree wounds often appear ragged where the bark is torn during the injury. This is common during branch breakage and when the trunk of the tree has been scraped. To repair this type of damage, cut off any ragged bark edges with a sharp knife. Take care not to remove any healthy bark and expose more live tissue than necessary. If possible, the wound should be shaped like an elongated oval, with the long axis running vertically along the trunk or limb. All bark around the wound should be tight.

There was a time when people recommended using a sealer over tree scars but that is old information. All you should do is take a sharp knife and trim off any rough places where insects could nest. The natural healing process will take of it.

if you find the scar unsightly you can plant something in front of it, but not touching.

Usually they tar it

I wouldn't put anything on there, mosaic tile nor paint. I'd call an arborist or someone well-versed in trees (try reaching out to your local garden center) and have them come take a look.

If it really bothers you, call in an arborist. Embrace the imperfections of nature and the fact that the tree did not die and have to be removed. Paint, tar and other outdated methods will do more harm than good. Here is some info you might find helpful.

https://www.gardeningknowhow.com/ornamental/trees/tgen/wound-dressing-on-trees.htm

https://extension.unh.edu/blog/should-i-cover-large-pruning-wounds-tree-wound-dressing

Don't feel like you must "control" the wound, chances are, you might be the only one that is bothered by it.

I would take photos and send to an arborist who could tell you how to care for it