Emerald Ash Borer (EAB)
The emerald ash borer (EAB) (Agrilus planipennis) is an invasive beetle from Asia that infests and kills North American ash species (Fraxinus sp.) including green, white, black and blue ash. All of New York's native ash trees are susceptible to EAB.
Signs of infestation in the tree canopy include dieback, yellowing, and browning of leaves.Increased woodpecker activity is often the first sign of an EAB infestation. This activity can lead to "blonding", or large strips of bark falling off. On the trunk and branches, look for small, D-shaped holes that are left by emerging beetles. When the tree's bark splits or falls off, S-shaped larval galleries may be visible.
Most trees die within 2 to 4 years of becoming infested.
Signs of infestation in the tree canopy include dieback, yellowing, and browning of leaves.Increased woodpecker activity is often the first sign of an EAB infestation. This activity can lead to "blonding", or large strips of bark falling off. On the trunk and branches, look for small, D-shaped holes that are left by emerging beetles. When the tree's bark splits or falls off, S-shaped larval galleries may be visible.
Most trees die within 2 to 4 years of becoming infested.