The answer to 'tree bare spots' is that there are several common causes, including drought stress, disease, pests, or improper planting or care. Symptoms include thinning foliage, discolored or wilted leaves, and bare patches in the tree canopy. Solutions may involve watering, fertilizing, pruning, or treating for pests or disease, but severe cases may require professional tree care or even removal and replacement.
It's generally best to call a certified arborist or landscaping professional to diagnose and treat tree issues, especially if the bare spots cover a large area or affect the overall health and structure of the tree. DIY solutions can help in minor cases, but improper treatment may further damage the tree.