The answer to 'tree trimming turning brown' is that there are several common causes for this issue, including disease, pest infestations, drought stress, or improper trimming techniques. The symptoms may include leaves or branches turning brown, wilting, or dying back. The best solutions depend on the underlying cause, but may involve pruning away affected areas, treating diseases or pests, improving watering, or adjusting trimming practices.
In many cases, it's best to consult a professional arborist or landscaper to properly diagnose and address the problem. They can assess the tree's health, identify the root cause, and recommend the appropriate treatment. DIY tree trimming can be risky and may inadvertently cause more harm if not done correctly.