Contact Memorial Credit Union. Contact the Memorial City Hospital Branch location at 915 Gessner Road by calling (713) 778-6300 or contact the credit union by any of these means: Phone: (713) 778-6300. Fax: (713) 778-6330.
Verticillium Wilt. Most species of maple are susceptible to Verticillium wilt, and vine maple is no exception. The disease, caused by fungal pathogens, causes foliage to yellow and brown before it shrivels up and drops prematurely from the tree. The disease eventually becomes evident on entire sides of the tree.
Black Leaf Spots on a Maple Tree. A fungal infection called tar spot causes black spots on maple leaves. The disease usually appears during wet years. It causes little damage and is rarely a cause for serious concern. The Rhytisma acerinum and Rhytisma punctatum fungi cause tar spots on maple leaves. The pathogens spend the winter on infected leaves and mature during the spring, releasing tiny spores that travel on the wind. The spores create new infections if they land on the leaves of a susceptible host.