Like other maples, Fall Fiesta Sugar Maple can be infected by tar spot (Rhystima spp.). This is an ornamental disease and will not kill the tree.
Although no major disease problems have been noted, Fall Fiesta Sugar Maples can develop Verticillium Wilt, Anthracnose, and Cankers. Leaf Scorch may develop in especially dry conditions. Maintaining tree vigor through proper watering and mulch is the best way to prevent these diseases from damaging the tree.
Scale insects, borers, and aphids can sometimes damage the tree. Keep the tree healthy to prevent these insects from causing heavy damage. If a tree has become infested, contact an arborist to develop a plant health care plan.