What can be a result of improper installation of tree support systems?

Improper installation of tree support systems can lead to further injury to the tree for several reasons. When supports are installed incorrectly, they may rub against the bark, causing wounds that can expose the tree to pests and diseases. These injuries create openings for pathogens, potentially leading to decay or other health problems. Additionally, inadequate or overly tight supports can restrict the natural movement of the tree, which is vital for its structural integrity and growth. Instead of providing the intended stability, a poorly adjusted support system can exacerbate the tree's instability, further stressing the tree and potentially leading to its decline.

In contrast, choices like complete tree health improvement and increased stability of the tree represent the intended outcomes of a properly executed tree support system, while the attraction of pollinators is unrelated to the effects of support systems. Thus, the correct outcome of improper installation clearly indicates the risk of additional harm to the tree.