The answer to 'tree turning brown' is that there are several common causes, including drought stress, disease, pests, or nutrient deficiencies. Symptoms may include leaves turning brown or yellow, wilting, and branch dieback. Solutions depend on the underlying cause and may involve watering, fertilizing, pest control, or pruning affected branches.
If the issue is due to drought or nutrient deficiency, homeowners can often address it through proper watering and fertilization. However, if the problem is caused by disease or pests, it's best to consult a professional arborist or horticulturist to properly diagnose and treat the issue.