The Green Menace: The History and Rise of the Emerald Ash Borer in Fort Worth and Surrounding Texas cities
If you’ve taken a walk through cities or parks in areas like Fort Worth, Keller, Grapevine or Arlington, you’ve likely admired the deep green canopies of our mature ash trees. From the native Texas ash shading our limestone hills to the massive green ash trees cooling our backyards, these trees are a vital part of Fort Worth's urban forest.
But a tiny, glittering enemy is putting millions of trees across DFW at risk. It’s called the Emerald Ash Borer (EAB), an invasive beetle leaving a trail of dead trees across North Texas. Because Tarrant County is an active infestation zone, passivity is no longer an option for local homeowners. Getting a timely tree disease inspection from a Certified Arborist at Case Tree Service is the single best way to protect your property and ensure your landscape stays safe.
What is the Emerald Ash Borer?
The Emerald Ash Borer (Agrilus planipennis) is a wood-boring jewel beetle native to northeastern Asia. It is easily recognizable by its striking, metallic emerald-green body, which is about half an inch long.
While adult beetles do minimal damage by nibbling on ash leaves, their larvae are devastating. After hatching, the larvae chew their way beneath the bark into the tree's phloem—its essential nutrient highway. They feed in winding, S-shaped tunnels called "galleries." This completely suffocates the tree’s ability to transport water. Within just two to five years of infestation, an untreated ash tree will die.
A Brief History: The Invasive Beetle's March to Tarrant County
The story of the EAB in North America shows exactly why prompt emerald ash borer treatment in Fort Worth is so critical:
2002: The beetle was first discovered in North America near Detroit, Michigan.
2016: For over a decade, Texas held the line. However, in 2016, a routine monitoring trap caught the first Texas specimen near the Louisiana border.
The DFW Invasion: The beetle quickly marched west into the Metroplex, heavily infesting Tarrant County and claiming thousands of trees across Fort Worth, Arlington, and surrounding municipalities.
Statewide Spread: Detections continue to climb, with the beetle spreading to 40 infested Texas counties.
Because Fort Worth sits squarely within the heavily impacted zone, any unprotected ash tree in our area faces a near-100% chance of exposure.
Understanding the Tarrant County EAB Quarantine
To slow the beetle's momentum, the Texas Department of Agriculture (TDA) places infested counties under a strict regulatory quarantine. Because Tarrant County is a quarantined zone, it is illegal to move ash wood, nursery stock, or any un-processed hardwood firewood outside of county lines.
As a trusted Fort Worth tree care company, Case Tree Service strictly adheres to these state regulations. When we prune or remove an infected tree, we process and dispose of the wood locally to ensure the beetle does not hitchhike into neighboring, un-infested counties.
How to Spot an EAB Infestation on Your Fort Worth Property
Early detection can mean the difference between affordable preventative care and expensive tree removal. Keep a close eye out for these four telltale signs of ash tree disease:
Top-Down Canopy Dieback: The leaves and upper branches at the very top of your ash tree will begin to thin, turn yellow, and die off first.
D-Shaped Exit Holes: When adult beetles emerge from the bark in the spring and summer, they leave perfectly shaped, tiny "D" holes about 1/8 of an inch wide.
"Blonding" Bark from Woodpeckers: Local woodpeckers love eating EAB larvae. If you see large patches of outer bark stripped away, revealing bright, light-colored wood underneath, birds are actively hunting invaders in your yard.
S-Shaped Larval Galleries: If your tree has splits in its bark, look closely beneath the surface. Winding, serpentine tracks etched into the wood mean larvae are actively feeding.
Protecting Your Yard with Case Tree Service: Trunk Injections vs. Removal
Because EAB is fatal to unprotected ash trees, ignoring the problem will inevitably result in a brittle, hazardous tree on your property. Case Tree Service provides two primary solutions depending on the health of your canopy:
1. Professional Trunk Injections (Best for Healthy Trees)
If you have a healthy, mature ash tree that provides valuable shade, privacy, or property equity, you can proactively immunize it. Our specialists apply targeted trunk injections of emamectin benzoate. This treatment is absorbed directly into the tree's vascular system, killing feeding larvae instantly. It provides up to two years of robust protection and is far more cost-effective than removing a mature tree later on.
2. Safe Ash Tree Removal in Fort Worth (Best for Damaged Trees)
If an ash tree has already lost more than 30% to 50% of its canopy, it is usually too late to save. Dead ash trees dry out rapidly and become incredibly brittle, posing an immediate safety hazard to your home, roof, or power lines. As a fully licensed and insured tree removal service, Case Tree Service can safely dismantle structural hazards before winter storms or spring winds cause a catastrophe.
Schedule Your Local Tree Health Assessment Today
Don't wait until your tree's canopy begins to thin out. Keeping your property safe starts with proactive inspection!
Contact Case Tree Service today to schedule an EAB assessment, confirm your tree's health, and put a preventative treatment plan in place before the next beetle flight season!
Check out our Pest and Diseases page for more information!
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