Tree surgery has proven to be useless and counterproductive according to many experts! (Wessoly, Erb)
In the past, so-called “tree surgery” measures were taken for open tree wounds. These practices included gouging, drilling and the use of wood preservatives. This did more damage to the trees than good. The natural, well-functioning compartmentalization and regeneration zone is often damaged or removed.
So-called “wound closure agents” have also not proven to be effective and fungus-inhibiting – such agents should be avoided when building treehouses – the tree knows exactly how to deal with injuries.