Emerald Ash Borer Treatment Cost: Everything You Need to Know

Emerald Ash Borer Treatment Cost: Everything You Need to Know

The Emerald Ash Borer (EAB) is an invasive beetle that poses a significant threat to ash trees in Colorado and across the U.S. If left untreated, an infestation can lead to the death of your tree within just a few years. Oftentimes, an infestation can go unnoticed to the point where rescue treatments may no longer be effective. Protecting your ash trees from EAB requires proactive treatment, but what can you expect when it comes to costs? Understanding the factors that influence treatment costs and the value of professional services can help you make an informed decision.

The Spread of Emerald Ash Borer in Colorado

Emerald ash borer (EAB) first arrived in Colorado in 2013, with its initial detection in the City of Boulder. Since then, it has been confirmed in several areas, including Longmont, Broomfield, Erie, Thornton, and most recently, Littleton and Carbondale in 2023.

Ash trees make up about 15% of Colorado’s urban forests, making EAB a significant threat to the state’s landscapes. With no federal quarantine in place since 2019, proactive treatment is essential to protect Colorado’s ash trees and prevent widespread loss.

Factors That Influence EAB Treatment Costs

The cost of treating ash trees for EAB varies depending on several factors:

1. Tree Size

Treatment cost typically rises with overall tree size. The tree diameter (usually measured 4.5 feet above ground level) determines the product volume needed to properly protect a tree. In addition to this, larger trees require more labor to deliver the needed product successfully. Both of these factors can influence treatment costs.

2. Treatment Method

  • Trunk Injections: This is typically the preferred method that directly targets the tree’s circulatory system. It’s suitable for suitable for most trees, provided they are not too small
  • Soil Drenching/ Injection: A less expensive option, but one that is less targeted , and has the potential to impact nearby plants whose roots systems may fall within the treatment area 
  • Bark Sprays: A preventative option that is useful for trees with bark damage or where access/ soil space precludes trunk or soil injections. 
  • Foliar Sprays: Probably the least ideal method, as this only protects against adult-stage beetles. Larvae are not impacted through this method of application.

3. Frequency of Treatment

  • Trunk Injected treatments typically last for 2 years, while soil treatments, bark sprays, and foliar sprays must be reapplied annually for continued protection. . It’s important to invest in your trees, because when left untreated where EAB is active, the tree will die. Removal and replacement costs can vastly exceed the cost of treatment.

4. Professional vs. DIY

  • DIY Costs: While not recommended, homeowners can purchase soil drenches or sprays for $50–$100 per application. These methods are less effective for larger trees, advanced infestations, or locations where EAB pressure is high.
  • Professional Services: Hiring a certified arborist ensures precise application and trusted results, but may come at a higher upfront cost.

DIY vs. Professional Treatment

DIY Treatment

For smaller trees, homeowners may opt for over-the-counter products such as soil drenches or sprays. While DIY options can save money, they have limitations:

  • Reduced effectiveness on larger trees,advanced infestations, or in areas with high pest pressure.
  • Higher risk of improper application, which could harm the tree or surrounding vegetation.
  • Potential environmental risks, especially with soil-based treatments.
  • If you do opt for DIY treatment, it is critically important to read and follow all label requirements – the label is the law!

Professional Treatment

Professional services ensure effective, long-lasting results and can more successfully target larger or more complex infestations. Certified arborists use methods like trunk injections, which are highly effective for delivering systemic protection throughout the tree. Professionals also:

  • Provide an expert assessment of tree health.
  • Use specialized equipment to apply treatments precisely and safely.
  • Are trained to minimize off-site/negative tree impacts, and maximize benefits
  • Monitor trees over time to ensure continued protection.

Why Choose Preventative Treatments?

Preventative treatments are the most cost-effective way to protect your ash trees from EAB. Waiting until an infestation is advanced often leads to higher costs and a reduced chance of saving the tree.

Benefits of Preventative Care:

  1. Lower Costs: Treating a healthy tree is less expensive than addressing a tree with significant damage.
  2. Better Outcomes: Early treatments prevent EAB from damaging the tree’s circulatory system, improving the likelihood of long-term survival.
  3. Reduced Risks: Proactively treating your tree avoids the safety hazards and costs associated with tree removal.

When is Treatment No Longer an Option?

While treatment can be highly effective for early infestations, it may not be viable for trees that are already severely damaged. Signs that a tree is beyond saving include:

  • Canopy Loss: Trees with more than 30% canopy loss are unlikely to recover, even with treatment.
  • Structural Instability: Extensive internal damage from EAB tunneling may weaken the tree, creating safety hazards.
  • Tree Condition: If a tree is severely stressed or already in a state of decline, treatment may be ineffective and not worth the cost.

In such cases, tree removal may be the only option. The cost of removing a mature ash tree can be significant, depending on its size and location.

Why Work with Fielding Tree Care for EAB Treatment?

Fielding Tree Care is Denver’s trusted expert for emerald ash borer treatment. We offer comprehensive services tailored to Colorado’s unique climate and environmental challenges. Here’s why homeowners choose us:

1. Expert Assessments

Our certified arborists begin with a thorough evaluation of your ash tree’s health to determine the best treatment approach. Fielding Tree Care is proud to employ Colorado Department of Agriculture Certified Operators, ensuring that all pesticide applications meet state standards for safety and effectiveness. Our team is fully licensed to apply pesticides with the Colorado Department of Agriculture, giving you peace of mind that your ash trees are in the hands of trusted professionals.

2. Customized Solutions

We use proven methods, such as trunk injections, to provide long-lasting protection for your trees. These treatments are highly effective and often protect trees for up to two years.

3. Environmentally Responsible Practices

Fielding Tree Care prioritizes the health of your landscape and the surrounding environment. Our treatments are designed to minimize risks to pollinators, soil, and water systems.

4. Transparent Pricing

We provide clear cost estimates based on tree size and condition, ensuring no surprises.

5. Ongoing Support

Our team monitors your trees over time to ensure continued protection against EAB and other threats.

Weighing the Costs of Treatment vs. Tree Removal

Investing in EAB treatment is often more cost-effective than removing and replacing a mature tree. 

For homeowners who value their ash trees for shade, aesthetics, or property value, treatment is a worthwhile investment.

Contact Fielding Tree Care Today

Don’t wait for EAB to jeopardize your ash trees. Protect your landscape with expert treatment from Fielding Tree Care. Schedule a consultation today to learn more about our services and keep your trees healthy for years to come.

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