# Maple Tree Root Damage
Maples (Acer spp.) are a large family of shrubs and trees best adapted to growing in areas with cool weather. The evergreen to deciduous plants grow in full to partial sun and prefer a moist soil. A fungal disease is a likely cause of root damage in maple trees.
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Identification
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Maple trees are susceptible to verticillium wilt caused by infection from the soil-borne fungi Verticillium spp. The fungus damages the tree roots and enters the tree, affecting the nutrient and water conducting tree tissues. Symptoms of the disease commonly appear in July and August.
Damage
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The disease is characterized by stunted, yellowing foliage and marginal browning. This is accompanied with branch and shoot dieback. Certain portions of the tree wilt suddenly. As disease progresses, foliage curls and dries. With damage to inner wood, dead areas of bark are visible on the trunk and branches. Sapwood under the bark is greenish brown. Infected trees gradually die.
Management
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No fungicidal control options exist for the disease. Use resistant tree species. Keep trees in good health with adequate fertilizer and watering. Remove affected trees entirely with roots. Solarize the soil in areas with prior cases of verticillium.
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