Phytophthora root rot, a fungus, particularly causes problems for maples in poorly drained soil. Its tolerance of wet soils affords its use as a shade tree along streams or slow-draining pockets in a landscape. This makes the tree susceptible to high winds and damage from storms, resulting in possible property damage. Root system problems may manifest in the form of cracking sidewalks or driveways near the established tree. To have the best chance of getting a red maple that has red leaves in autumn would be by buying the red maple variety called Red Sunset. Though sunset maple trees, often referred to as 'Red Sunset', are prized as the most successful red maple cultivar, issues may still arise. The feeding roots of red maples are close to the surface, lending to a variety of problems. Unfortunately, phytophthora root rot results in an unstable tree, which also makes it prone to falling over during storm or particularly wet season. With varieties in either full rounded or upright forms, red maple trees have a high canopy that allows you to see its branch structure. In iron chlorosis, the problem stems from a deficiency in iron. The glossy green leaves persist on the tree turning orange-red to brilliant red in the fall. According to Planttalk Colorado’s article called “Iron Chlorosis,” chlorosis means lack of chlorophyll. This large deciduous tree has a pyramidal form when young that becomes rounded with age. In summer the leaves are a very attractive glossy green, and this is an ideal specimen tree for a lawn, or for planting in prominent parts of your property. It has a spread of 30 to 40 feet, with a full, rounded crown. Root rot might occur with your maple, and like verticillium, it's difficult to diagnose. Maples are considered 'bleeders' and are best pruned in early winter or during summer. For the most part, these diseases do not kill the red maples. Maples are deciduous trees characterized by opposite leaf arrangement and spectacular fall color. Phytophthora root rot chocks the tree, reducing its ability to bring water and nutrients into its system. That said, they might be infected with one of these: Susan Lundman began writing about her love of gardening and landscape design after working for 20 years at a nonprofit agency. There is no cure for the disease. This is a nice shade tree. Acer rubrum, commonly called red maple, is a medium-sized, deciduous tree that is native to Eastern North America from Quebec to Minnesota south to Florida and eastern Texas.It typically grows 40-60’ tall with a rounded to oval crown. Considered one of the best for early fall color! It is more uniform that other columnars. Cut off infected branches and treat the tree with an insecticide as directed. On some trees, water-soaked cankers ooze liquid around the soil line. The glossy green leaves provide a very dynamic show, as they turn a brilliant orange-scarlet when temperatures begin to cool. Another disease, Maple Tree Tar Spot, starts to appear in June with tiny yellow spots that turn black as the summer progresses. Red seedpods, called samaras, cluster near end of the branches. The disease usually affects trees or plants grown in a container or those cultivated in fields. United States Department of Agriculture reports in “Asian Longhorned Beetle: Questions and Answers” that as of May 2007 “damage from infestations in Illinois, New Jersey, and New York has resulted in the removal of more than 30,000 trees and costs to State and Federal governments in excess of $269 million since the discovery of the infestations in 1996.” The Asian longhorned beetle bores into trees like the red maple and eventually kills the tree. Don't plant it where its roots will be restricted (like those little islands in parking lots) or near hot pavement. 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