Asian Longhorn Beetle

What is it The Asian Longhorned Beetle (ALB) is a longhorned or sawyer beetle from central Asia that was accidently imported into the U.S. in wood-packing material used in shipping. The beetle was first discovered in Brooklyn, New York in 1996. Since it was first identified, the ALB has spread throughout parts of New York State, Illinois, Massachusetts, and California. Because of the relatively small infestation area, it is believed that eradication efforts can be successful. Examples of successful eradication include the state of New Jersey, which was declared ALB-free in March of 2013, and Canada, which has been ALB-free since 2007. How does it cause harm? The ALB lays its eggs on the bark of hardwood trees. When the egg hatches, the larva burrows under the bark and begins to consume the xylem and phloem of the tree, causing the tree to eventually die of starvation. It usually takes two years for the larva to reach maturity inside the tree. Upon reaching maturity, the beetle will bore its way out of the tree and prepare to mate. The damage caused by the ALB weakens the tree in such a way that it cannot be used for anything besides packing […]
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Emerald Ash Borer

What is it? The Emerald Ash Borer, otherwise referred to as EAB, is a small, green beetle from northeastern Asia; it was introduced to North America in 2002. During the larval stage, the EAB can be found under the bark of ash trees, feeding within the sapwood; adult beetles can be found feeding on the leaves. Upon arrival in Michigan, in Michigan in 2002, EAB infested our native ash trees at an alarming rate. Much the same as other invasive species, the EAB, spread throughout eastern North America with ease due to a lack of natural predators, parasites, and pathogens. This contributed to the EAB earning a pest status in North America whereas the EAB is not considered a pest in Asia. Limited funding and growing EAB populations lead to the abandonment of eradication efforts early on. The speed at which EAB populations have grown and spread are problematic to the U.S. and Canada, both of which have extensive populations of ash trees. As an adult, the insect is recognizable by its bright green, metallic sheen; hence its common name, “Emerald” Ash Borer. The adult EAB is quite small, shorter in length than a penny is in diameter (width). While […]
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