In reality, pruning paint may impede healing and encourage the growth of rot organisms and insect infestation. I certainly wouldn’t want to get a tree dressing on my own skin, let alone a cut or scrape. Clearly, these materials don’t seem like they would be healthy to apply to living tissue. Better yet, some of these same products claim they can be used for multiple purposes, from waterproofing and sealing gutters and roof flashings, to protecting the undersides of lawnmower decks. Many of them are petroleum-based and advertised as being waterproof and flexible to keep insects and fungi from invading the pruned areas. Although these claims have been debunked for years, there are still many tree wound dressing products that can be purchased online or at garden supply stores. The idea was that this paint would prevent decay, help speed healing, and improve the appearance of the cut. In decades past, recommendations were often made to apply tree paint to wounds.
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