Emerald Ash Borer is bugging NJ

Montclair plans to cut down 2,000 ash trees to help fight off the invasive Emerald ash borer (Agrilus planipennis), whether the trees are infected or not.

The Emerald Ash Borer (EAB) — a beetle from Asia — has caused the State Department of Agriculture to issue a warning saying that about 9% of the Garden State’s total forested area, or 24.7 million ash trees, are susceptible to an infestation.

Most of the ash is concentrated in the north-western part of the state, but it has been commonly planted as street trees and on private properties in many cities and towns.

Trees infested with EAB on public and private lands in urban areas will pose the greatest danger where falling branches have the potential to hit people, structures, or cars.

In its native range, emerald ash borer is only a nuisance pest on native trees, as population densities typically do not reach levels lethal to healthy trees.

Without factors that would normally suppress the insect’s population, such as resistant trees, predators, and parasitoid wasps, the bugs can quickly rise to dangerous levels.


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