A helpful video illustrating how to identify the signs/symptoms of EAB can be found here. A printable document describing the signs and symptoms of EAB is available from Michigan State University.

Emerald ash borer (Agrilus planipennis) is an invasive, wood-boring beetle that kills ash trees (Fraxinus spp.) by eating the tissues under the bark. Native to northeastern Asia, emerald ash borer (EAB) was first detected in the United States in 2002 and is thought to have been introduced from China via the wood from shipping crates.

2025年3月10日 · EAB adults are metallic green with a coppery-red abdomen and about one-half inch long. Signs of infestations. EAB larvae burrow into the tree and feed on the inner bark and phloem and creating S-shaped markings. They pupate in winter and emerge as adults in spring, leaving D-shaped exit holes. The adults remain active until the end of summer.

2022年6月30日 · Find a chart with common EAB look-a-likes here. Signs of EAB infestation include yellow, sparse, partly eaten, or wilted foliage, “D-shaped” exit holes in bark, unusual or increased presence of woodpeckers (or evidence of pecking holes), and fresh shoots growing from the tree’s roots or trunks – often with larger-than-normal leaves.

Signs and Symptoms of Emerald Ash Borer Infestation If you see these signs on ash trees, please take pictures and report your findings. Click on images to enlarge

Approximately a half inch long, the emerald ash borer has an elongated cylindrical body that is a bright metallic-green color. Its red abdomen can only be seen when the insect spreads its wings. During the larval stage, the beetle looks like a cream-colored, flattened and segmented worm that can grow up to one inch long. Signs and Symptoms

POSSIBLE SIGNS Epicormic shoots. These come directly from the tree base or trunk instead of from branches/twigs. Can be caused by EAB or other stressors; if you see this sign, look for definite signs. Epicormic Vertical splits in the bark. Can be caused by EAB or other 3. Canopy thinning or die-back.

Although the emerald ash borer will feed on healthy specimens, adults often prefer to attack stressed trees. Infested ash trees have distinctive signs of infestation. The most telltale sign is “blonding,” or signs of woodpecker foraging activity, which …

In this article, we will explore the key signs and symptoms that indicate the presence of EAB. By recognizing these indicators, you can take proactive steps to save your valuable ash trees from this destructive pest. The emerald ash borer (EAB) is a small, metallic green beetle that was introduced from China.

2021年9月30日 · Follow Davey Tree’s simple four-step checklist to identify early EAB warning signs. Fate of the State. See if EAB is in your state by checking out the Department of …