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Conifers are commonly planted in North America to provide year-round screening, as windbreaks or as focal trees in the landscape.
Oak decline is a slow-acting disease complex that involves the interaction of biotic and abiotic factors such as climate, site quality and advancing tree age.
Ice or snow loads can cause branch breakage or failure of entire trees and shrubs. Branches or entire trees that fall in storms can impact homes, vehicles, power lines and block roads.
ManagementEmerald ash borer (Agrilus planipennis) was first discovered in southeastern Michigan in 2002.
Insect and disease infestations pose major threats to several North American forest tree species.
North American forests and forest management institutions are experiencing a wide range of significant ecological disturbances and socioeconomic changes, which point to the need for enhanced resilience.