In 2002, the Emerald Ash Borer (EAB), Agrilus planipennis beetle was first discovered in Detroit. The insect was likely introduced accidentally to North America by means of importing goods on wood pallets from Asia. The non-native EAB is especially dangerous because of the lack of predators in North America. However, pesticide treatments have been found to be effective. It is important to treat for EAB because the beetle covers ground quickly while taking out hundreds of Ash trees that intersect its path. Thirty-one states have experienced the consequences of the beetles. Although the beetle can fly up to 10 miles a day, it is usually transported through the distribution of firewood. Currently the beetle has been discovered in Montgomery and Bucks County.
The young EAB eats the inner bark of the Ash tree, which hinders the tree’s ability to transport nutrients and water. The insect has the ability to kill an Ash tree within just three years of the initial infestation. In addition to its recognizable metallic green body, the Emerald Ash Borer can be identified from the symptoms of the infected trees possess. Common symptoms include canopy dieback, epicormic shoots, bark splitting, and S-shaped galleries (pictured) and D-shaped exits. Infected trees may also experience increased woodpecker activity.
Fortunately for homeowners and municipalities, Preservation Tree can effectively and easily treat either infected trees or as a preventative measure. Using sound IPM techniques a targeted insecticide can be injected into the vascular tissue of the tree giving a protection period of 2-3 years. This has demonstrated a 99% effectiveness for EAB control.