The Emerald Ash Borer Crisis: How This Devastating Pest is Threatening Long Island’s Beloved Ash Trees
Long Island homeowners are facing an unprecedented threat to their ash trees as the emerald ash borer (EAB) continues its relentless march across the region. On both Long Island and nationally, the emerald ash borer is an ongoing problem. It has killed more than 50 million North American ash trees – with white ash, black ash, and green ash trees impacted the most. This invasive pest has already established a devastating foothold in nearby areas, making protection and early intervention critical for Suffolk County property owners.
Understanding the Emerald Ash Borer Threat
The emerald ash borer (EAB) (Agrilus planipennis) is a wood-boring beetle from Asia that feeds on all native ash trees (Fraxinus sp.) in New York State. It was accidentally transported in infested crates and pallets to the United States where a lack of natural controls such as predators and disease allowed the population to grow rapidly. Since its introduction, it has killed millions of ash trees and has cost billions of dollars in damage and loss.
The beetle’s life cycle makes it particularly destructive. EAB females lay their eggs on the bark of ash trees. After hatching, larvae chew their way in and begin feeding on the living tissue between the bark and sapwood, creating S-shaped galleries. Once an ash tree is infested with emerald ash borers, its fatality rate is 100 percent.
Recognizing the Warning Signs
Early detection is crucial for protecting your ash trees. An ash tree infested with EAB may show the following signs: “blonding” of the trunk due to woodpeckers pecking off outer bark in search of the larvae (the light inner bark will turn gray over time); tree canopy dieback, yellowing, and browning of leaves; … S-shaped galleries under the bark, often seen when the tree’s bark splits or falls off.
EAB overwinter as pupas and start emerging in late May, leaving behind distinctive D-shaped exit holes in the bark. Adults can be seen through early September, but are most abundant in June and July. These small, metallic green beetles are only about half an inch long but cause enormous damage to Long Island’s urban forest.
The Local Impact on Long Island
The threat is not theoretical – it’s already here. In fact, the ash trees in Bellport have been infested so severely that the Bellport Garden Club has been raising money since October to save the remaining public ash trees. Twenty have already died due to emerald ash borer infestations. This demonstrates how quickly EAB can devastate local tree populations once established.
The death of the ash trees due to emerald ash borer infestation can have a devastating effect on forests, disrupting the ecosystem. For homeowners, the loss of mature ash trees means reduced property values, loss of shade and energy savings, and the substantial cost of tree removal and replacement.
Treatment Options and Protection Strategies
Fortunately, ash trees can be protected with proper treatment. Several insecticide products are available to homeowners for control of emerald ash borer (EAB). Since the presence and infestation level of EAB is quite difficult to determine at early stages of an infestation, insecticide treatments may be merited to mitigate damage by EAB.
Most of the products available to homeowners are systemic insecticides containing imidacloprid and are applied as soil drenches around the base of ash trees. Professional treatments offer more options, including trunk injections with emamectin benzoate, which has been demonstrated to often allow tree recovery as a “rescue treatment” even when emerald ash borer injuries have begun to produce as much as a 30 percent reduction visible thinning of the leaf canopy of the ash tree.
However, timing is critical. Research suggests that insecticide treatments are significantly more effective on EAB-infested ash trees with less than 50% canopy thinning. Trees with greater than 50% canopy thinning should be removed and handled in accordance with local guidelines.
Why Professional Tree Care Matters
When dealing with emerald ash borer threats, professional expertise becomes invaluable. Miguel’s Tree Service, a locally-owned company serving Suffolk County for over 15 years, understands the unique challenges facing Long Island’s trees. Miguel’s Tree Service is a locally-owned and operated tree company dedicated to delivering exceptional tree care services in Suffolk County, NY. With 15 years of experience in the industry, we have earned a reputation for our expertise, professionalism, and commitment to customer satisfaction. Our tree company consists of skilled arborists and tree care specialists passionate about maintaining your trees’ health and beauty.
Their commitment to environmental stewardship and customer satisfaction makes them an ideal partner for homeowners facing the EAB crisis. At Miguel’s Tree Service, we understand the importance of maintaining healthy trees and landscapes. Our services are designed to prolong the life of your trees, mitigate potential risks, and create a safe and beautiful outdoor environment for you and your family to enjoy for years to come.
Taking Action to Protect Your Trees
Prevention remains the best strategy against emerald ash borer. Most long-distance movement of EAB has been directly traced to ash firewood or ash nursery stock. Other untreated ash products (wood chips, mulch, lumber, pallets, etc.) generally present a lesser risk of spreading EAB. Adult EABs typically fly less than a ½ mile from their emergence tree, so their natural rate of spread is of lesser concern than human-caused spread
For Long Island residents, this means being cautious about moving firewood and working with professional arborists who understand proper treatment protocols. Whether you need preventive treatments, tree health assessments, or emergency removal services, seeking qualified tree service bohemia professionals ensures your property receives the expert care it deserves.
The Path Forward
The emerald ash borer threat is serious, but it’s not insurmountable. With proper identification, timely treatment, and professional guidance, many ash trees can be saved. Additionally, landowners may consider treating their ash trees. View the Insecticide Options for Protecting Ash Trees from Emerald Ash Borer (PDF).
Don’t wait until it’s too late. If you suspect EAB activity on your property or want to protect valuable ash trees proactively, contact a qualified tree service professional immediately. Early intervention can mean the difference between saving a beloved tree and facing the costly necessity of removal. Your Long Island landscape – and your property value – depend on taking action now against this invasive threat.