By NWI Tree Service
•
05 Oct, 2023
Among the various tree species, the ash tree has been cherished for its strength and resilience. However, the emerald ash borer (EAB) poses a significant threat to these trees. In this blog, we will delve into how the emerald ash borer affects your trees, how to identify an infestation, and the crucial role that professional arborists play in treatment and prevention. The Emerald Ash Borer: Characteristics The emerald ash borer, scientifically known as Agrilus planipennis, is a tiny but highly destructive invasive beetle native to Asia. First detected in North America in the early 2000s, it has since spread like wildfire, causing widespread devastation to ash trees throughout the continent. Its distinctive appearance and coloration make it relatively easy to identify if you know what to look for. Here are some key characteristics of the emerald ash borer: Size: Adult emerald ash borers are typically about 0.3 to 0.5 inches (7.5 to 13 mm) in length. They are relatively small insects. Color: The most striking feature of the emerald ash borer is its metallic green color. It has a shiny, emerald or jade-green exoskeleton that gives it its name. This bright green coloration sets it apart from many other beetles found in North America. Shape: The beetle has an elongated and slightly cylindrical body with a tapered appearance toward the rear. Its body is relatively slender. Elytra: The elytra are the hardened wing covers that protect the beetle's wings. On an emerald ash borer, the elytra are green with a series of wavy, irregular lines of a coppery or purplish color. These lines create a distinctive pattern on the back of the beetle. Underbelly: If you were to flip the emerald ash borer over, you would notice that its abdomen is also green but may have some bronze or coppery coloring as well. It's worth noting that this part of the beetle is not as commonly seen since the beetle spends most of its life under the bark of trees. Legs: The beetle has six legs, which are typically black in color and relatively short compared to its body. While the adult emerald ash borer is relatively easy to identify due to its metallic green color and unique markings, it's important to note that the larvae, which cause the most damage to ash trees, are not easily seen as they reside beneath the bark. It's the signs of infestation, that are often more noticeable when trying to confirm an emerald ash borer presence.