Walter Pall's main blog about bonsai and his work with trees from day to day. Lots of good pictures of good trees and lots of valuable information about bonsai.
Dear Walter,how do you prevent the sap from continuing to flow when you are cutting branches or else away, please?Best regardsJean-Paul
Sap flow has not much to do with cutting branches. It is vital to understnad plant pöhyiology to do the things that I am doing and knowing that there most probably will not be much harm to the tree. A vague understanding is not enough.
Jean-Paul, the two thick long branches were cut off two years ago. This did obviously not influence the living part. The work on the big dead stumps does not do any harm to the living part and has nothing to do with the sap flow there. Only the shari on the trunk could have do with it. But it was made on the side opposite to the living branch. Therefore it will not influence it either.
Dear Walter,thank you for your answers.I know that you didn't hurt the tree by working on its dead parts, and that no sap cold flow from those.This is what I wanted to know, if you please : I also work on some conifers - particularly mugo pines - and I'm always puzzled when seeing the sap flow from their wounds for some time after the work is done.I read somewhere that by using wood hardener on them, it was possible to stop this. But it doesn't seem to work.So, do you use some special technique to master the flowing? Or do you just let it happen, in the winter by instance, when there is not much tree activity?Thank you for sharing your thoughts, and also for the pictures of your strikingly beautiful trees.Best regardsJean-Paul
Jean-Paul, with sap flow you propbably mean rasin. Well, this is the natural protectant that the tree creates itself. It is great and there is absolutely no reason to stop this. it is necessary and will protect the tree. It whows thsat the tree is working on the problem. Do nothinhg and wait.
Once more, thank you Walter.J-P
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