On another thread, someone posted a link to "knitted fence out of fish net string" which is cool and way fancier than I need. I'm also suspicious that "fish net string" is not biodegradable. What I need is some sort of natural fencing to use to keep deer away from young trees long enough that they can become established (read tolerant of a degree of deer browse without getting dead). I was wondering if English Ivy could be used to make a mesh (the problem would definitely become the solution as I've got an over-abundance of it). I don't want to block more sun than required and don't have an abundance of small trees needing thinning, so the "junk pole" idea wouldn't be my first choice. What poles I've got I'll use to support something light in between.