The store brand(Food Club) 96 oz apple juice have a rib at the top and bottom just barely hidden by label. If you cut the top and bottom off about 1/4" outside that rib with a bit of effort you can snap one inside the other like difficult to put together legos and by using multiple bottles build a tree tube. Once it is snapped together push and wrinkles in the inside bottle out and they will be fairly well locked together. May need a bit of glue to stand high winds but it locks pretty solid without it. It can even have a narrower top with a removable vent cap by simply leaving the top on the top most bottle. Being PETE it should take the sun for a long time. The attached picture is 5 juice bottles and is just short of 30 inches high. The groove of the rib provides a good place to put the wire in for wiring it to the posts. Haven't seen any other bottles that work like this but there should be others.
Most if not all of the beverage bottles in Japan are PETE plastic and a lot are shaped like this. They call them "pet" bottles, and I was very confused when I first moved here as to why people would keep plastic bottles as pets. I figured it was like a pet rock.
I will have to give this a try when we plant seedlings out on the mountain. Hopefully it will be an economical way to keep the deer off.
I have seen purpose-built products that aren't as versatile. That's an amazing reclamation DIY.
This is a link to a study I browsed earlier regarding the effects of tree tube usage on three different North American species, Red Oak, Black Walnut, and Green Ash. The results are promising, but it suggests that it is important to ensure that the tubed trees aren't too sheltered from natural influences that cause them to grow stronger rather than spindlier.
I think the idea seems to be to use a tree tube for up to the first five years, as the most losses tend to occur between years one and three, and then again between years three and five.
Great job finding that resource, C!
A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
-Robert A. Heinlein
The City calls upon her steadfast protectors. Now for a tiny ad: