I think I need to burn this book I've been reading..it says to cut the leaveless cane for it deprives others of nutrition ...it was first published in 1954 !! This is a new edition , but maybe they forgot to edit this part !!
Few other infos have been the opposite of what most people are saying in this forum also..
I have cut one of the leaveless canes of my dendrobium into sections, dipped them in sulfur , and sit them in sphag in a big glass jar to see if I can get baby plants from them. I'll keep the rest of canes intact from now on.