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Boxwood dieback is a foliar disease caused by a fungal pathogen, Colletotrichum theobromicola.  Boxwood dieback symptoms include random dieback of twigs with light tan colored foliage. Affected leaves do not defoliate and tend to stay attached to the branches. Root and crowns of affected plants look normal.  Boxwood (Buxus sp.) is an important perennial landscape shrub in the United States. It is considered a top ornamental choice for new housing and other commercial development because of its vibrant green color and herbaceous evergreen growth. According to the 2019 USDA National Agricultural Statistics Service, the wholesale market value of boxwoods was estimated at $130 million annually in the United States.