Emerald Ash Borer Treatment: How TruGreen Tree Care Helps Protect Your Ash Trees

• Emerald ash borers feed on ash trees and disrupt the tree’s nutrient pathways.
• Early emerald ash borer treatment can help protect ash trees before serious damage.
• Watch for thinning canopies, D-shaped holes, bark splits and woodpecker activity.
• TruGreen® tree care uses targeted trunk injections to treat emerald ash borers.
• Curative treatment works best before canopy loss exceeds 20-25%.
• Preventive treatment is recommended to stop infestation before it starts.

Originally from Asia, the emerald ash borer (EAB) has earned a reputation as one of the most destructive tree pests in the United States, and unfortunately, it lives up to the hype. Since its discovery in Michigan in 2002, this tiny, metallic-green beetle has spread quickly, killing tens of millions of ash trees and changing landscapes across the country.

Because emerald ash borers have no natural predators in North America, early detection and professional emerald ash borer treatment are often the best way to protect ash trees before serious damage sets in. With expert diagnostics and science-backed solutions, TruGreen tree care helps homeowners take action early and with confidence. 

Emerald ash borers are sometimes called a “perfect predator” and for good reason. Here are some things to note about them:

• They only target ash trees.
• They have no effective natural enemies in the United States.
• They're hard to detect until damage is underway.

The impact is widespread. Forestry experts estimate emerald ash borer damage could lead to $10-$20 billion in urban forest losses over time. Beyond the trees themselves, the loss of ash trees can affect everyday life by:

• Lowering property values
• Loss of habitat for wildlife
• Driving up cooling costs
• Creating safety hazards from weakened trees

This is why proactive emerald ash borer tree treatment is often far more effective and economical than waiting until a tree is beyond saving. 

Spotting emerald ash borer signs early can be tricky. Many trees look healthy even while larvae are actively feeding inside. Common warning signs include:

• Thinning canopy, especially at the top
• D-shaped exit holes in the bark
• Vertical bark splits
• Increased woodpecker activity
• New shoots growing from the trunk or base

Because these symptoms often appear after internal damage has progressed, professional evaluations are especially valuable when protecting ash trees long-term. 

Among emerald ash borer treatment companies, TruGreen uses a targeted, science-driven approach designed to work where damage actually occurs — inside the tree.

How Trunk Injection Works

• Treatment is injected at the base of the tree
• The product moves through the vascular system
• Feeding larvae ingest the treatment beneath the bark
• Vegetation around the tree has minimized exposure to treatment due to direct injection

This method allows emerald ash borer tree treatment to be both effective and precise, helping protect surrounding plants and soil while focusing on the real problem.

In addition to TruGreen’s Emerald Ash Borer treatment, TruShrub Tree & Shrub Care plan has a complete insect and disease control approach to keep your ash trees thriving. 

Not all treatments serve the same purpose. Choosing the right emerald ash borer treatment depends on timing and tree condition.

Preventive EAB Treatments

• Best for healthy trees in high-risk areas
• Applied before visible damage appears
• Designed to stop infestation before it starts

Curative EAB Treatments

• Used when early infestation is detected
• Most effective before canopy loss exceeds 20-25%
• May require ongoing monitoring

TruGreen specialists tailor treatment plans to each tree, balancing protection, timing and long-term health. 

TruGreen’s emerald ash borer treatments have been applied successfully nationwide. In communities across the country, TruGreen has treated hundreds of residential ash trees and thousands more in public spaces helping slow tree loss and preserve green spaces where they matter most.

TruGreen specialists continue monitoring emerging threats as well, ensuring homeowners benefit from forward-looking solutions grounded in ongoing research and experience. 

Not all emerald ash borer treatment companies offer the same level of expertise. When choosing a provider, look for:

• Certified, well-trained specialists
• Proven, science-based methods
• Preventive and curative options
• Ongoing monitoring and support

With nationwide reach and expert technical oversight, TruGreen combines local service with trusted expertise so homeowners can feel confident about protecting their trees. 

Can I treat emerald ash borer myself?

DIY emerald ash borer products exist. However, if the treatment isn’t made properly, the insect will continue to multiply and cause damage and eventually kill the tree. Professional emerald ash borer treatment is typically the most reliable option.

Can a tree with an emerald ash borer be saved?

Yes, many trees can be saved, especially when infestation is detected early. Trees with minimal canopy thinning respond best to professional treatment.

When should emerald ash borer treatment be applied?

Treatment is most effective before symptoms appear or during early infestation. Preventive treatments are especially helpful in areas where emerald ash borers are active.

Can I save a tree infested with borers?

Often, yes. Trees that still appear healthy may already be infested internally. Targeted emerald ash borer treatments can help stop further damage and extend the life of trees with less than 25% canopy loss.