Re: how much rot is acceptable? Yah, it would depend on the application. In my case, I remove all dying trees here from the conifer stand. Keeps the spread of disease down that way. If I see a conk (fruiting body of a fungus) I generally cut the whole tree down. In the orchard, if I see rot on a branch, I prun it out or cut the branch off. Rot and decay and hollow are different things though. I also have some old hollow trunk apple trees that I left here (letting some of the suckers grow, as they are old and not grafted, and I want to replace them with sports on their own roots). However, the old hollow apple trees should be felled (along with the old hollow box elder tree that is a hazard; but it could live for another 20 years if it was of some importance, which it is not here).
As Ekka says, it is highly variable.
__________________ So few saws, so many trees... Stihls: 210/250-/025/290/361/FS85
Echo: CS-3000, Olympyk & Mac doorstops   |