I would think CaOH would be a much safer alternative, but can't help but thinking that there has got to be a better way.
I live in a much milder climate than many of you so I don't worry about cracking bark from freeze and thaw, but fro what I'm reading just on simple searches is that it seems like for every method of wrapping or painting it creates a,niche for certain pest to thrive.
who knows what effect the chemical pasteurization of the barks microbiome the CaOH would cause might have? And as it washes off and raises the pH of the soil?
you,may find it accomplishes what you desired, but in a year or two your having problems that are seemingly unrelated so your wondering what caused that, but don't know so you just try to deal with those symptoms with another entangled
project, but didn't know the paint or whatever caused it so,when,that time of year,comes around you paint and wrap again.
I would make a tea from the bark of healthy indigenous trees, something that really thrives in your area, and teas of lichens and forest duff and spray the trees with it hoping that endophytes microbes transferred to the trees in hopes the endophytes would colonize and strengthen the bark layer.
Some how I doubt this would happen to trees that were functioning at or near their max natural potential
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