Emerald Ash Borer (EAB) is a destructive pest that has killed millions of ash trees across North America. Learn how to identify, manage, and eliminate this pest to save your trees, your properties, and your dollars! In this article, we’ll provide the main steps to protect your ash trees and discuss professional treatments to combat the Emerald Ash Borer.
What is EAB?
The Emerald Ash Borer (Agrilus planipennis) is a small, metallic green beetle native to Asia. First detected in the United States in 2002, this invasive species targets ash trees, laying eggs under the bark. Once hatched, the larvae burrow through the tree’s vascular system, disrupting the flow of water and nutrients, which eventually leads to the tree’s death. EAB is responsible for the rapid decline of ash tree populations in both natural forests and urban landscapes.
Signs of Infestation
– D-shaped exit holes: Adult beetles leave small, D-shaped exit holes about 1/8 inch wide when they emerge from the tree.
– Bark splitting: Infested trees may show vertical splits in the bark, revealing galleries created by EAB larvae as they feed underneath.
– S-shaped larval galleries: Beneath the bark, larvae create winding, S-shaped tunnels that disrupt the tree’s ability to transport nutrients and water.
– Dieback from the top down: Trees infested with EAB often show thinning foliage and dead branches starting at the top of the canopy and spreading downward.
– Epicormic shoots: Stressed trees may produce shoots or sprouts at the trunk base or along major limbs in response to EAB damage.
– Woodpecker activity: The EAB larvae attract birds, which may increase woodpecker feeding.
Where is EAB Found?
Originally discovered in Michigan, EAB has now spread to 35 U.S. states. Its rapid movement across the continent has been facilitated by the transport of infested ash wood products.
EAB has also made its way to the West Coast, with confirmed sightings in Oregon. The pest’s arrival in Oregon highlights the importance of monitoring and early detection to prevent further spread.
What to Do if You Think You Have EAB?
- Identify symptoms: Look for the signs mentioned above, such as D-shaped exit holes, canopy dieback, and bark splitting.
- Contact a certified arborist: A professional can assess the tree, confirm the presence of EAB, and provide recommendations on how to proceed.
- Avoid moving firewood: Prevent further spread by not transporting firewood or any part of the infested tree to other areas.
- Report it: If you live in an area where EAB is not yet established, report your findings to local agricultural authorities or forestry departments.
How to Get Rid of EAB?
Getting rid of EAB involves a combo of strategies, including chemical treatments, biological controls, and in some cases, tree removal. Here are the most common methods:
– Systemic insecticides: These are injected directly into the tree or applied to the soil around the base. The tree absorbs the chemicals, which then kill larvae feeding beneath the bark. A trunk injection of emamectin benzoate protects the tree for 2-3 yrs. For less severe infestations, a soil drench of imidacloprid protects the tree for 1 yr.
– Tree removal: Severely infested trees that pose a safety risk should be removed and properly disposed of to prevent the spread of EAB.
– Biological controls: Researchers are exploring the use of natural predators, such as parasitic wasps, which can help control EAB populations.
How to Get Rid Of Emerald Ash Borer Naturally?
Maintaining healthy trees and diversifying plantings are essential steps to naturally combat EAB infestations:
– Keep your trees healthy: A well-maintained tree is more resilient against pests and diseases. Keep your trees properly watered, mulched, and pruned.
– Encourage biodiversity: Planting a variety of tree species in your landscape reduces the impact of pests like EAB, as the beetle only targets ash trees.
– Promote beneficial insects: Some natural predators can help keep EAB populations in check. Encourage these beneficial insects by reducing the use of broad-spectrum pesticides.
Why Choose A Plus Tree for EAB Treatment?
At A Plus Tree, we specialize in tree health care and tree pests & diseases. Here’s why you should choose us:
– Certified and licensed professionals: Our team of certified arborists are experts in diagnosing and treating tree pests, including EAB. We adhere to industry standards and regulations to provide safe and effective treatments.
– Partnership with Rainbow Ecoscience: We work closely with Rainbow Ecoscience, a leader in plant health care and development of EAB treatment solutions. This allows us access to the latest research, products, and techniques to combat EAB.
– Comprehensive EAB treatment plans: We provide diagnosis, customized treatment options, and ongoing monitoring to ensure your trees remain healthy and protected from EAB.
– Environmentally conscious solutions: We are committed to using treatments that minimize environmental impact while effectively managing EAB infestations.
Emerald Ash Borer is a serious threat to ash trees, but with the right knowledge and professional help, you can protect your landscape. If you suspect EAB in your area, reach out to us for a free assessment!
