EAB Treatment in Willmar, MN
Protect your Willmar ash trees from the destructive Emerald Ash Borer. Our ISA Certified Arborists provide proven trunk injection treatments to preserve your landscape's beauty.
Get a Free QuoteEmerald Ash Borer Treatment in Willmar
Emerald Ash Borer is a serious concern for property owners across Willmar and Kandiyohi County. With Minnesota under a statewide EAB quarantine, ash trees throughout the region are at risk — from the boulevard ash lining city streets and the mature canopy near Foot Lake and Robbins Island Regional Park to the green ash that anchors farmstead shelterbelts. EAB infestations can rapidly kill these valuable trees, affecting property values and the local landscape.
Timber & Native is your ISA Certified Arborist team dedicated to protecting Willmar\'s urban and rural ash. We use the latest trunk injection technologies and a science-based approach to manage EAB effectively. As a Minnesota company, we understand the specific challenges of west-central Minnesota and the prairie pothole region, and we are committed to preserving your trees for years to come.
Get a Free Consultation in Willmar
Contact our ISA Certified Arborist for a free on-site evaluation of your Willmar property.
The Treatment, Step by Step
How We Treat Ash Trees for EAB
We protect ash trees with direct trunk injection of emamectin benzoate — the most effective, lowest-impact method available. Here is exactly what happens when our ISA Certified Arborist and Licensed Pesticide Applicator treats a tree on your property.
01 Staging the Injection System
Our ISA Certified Arborist measures each ash tree at diameter breast height (DBH) and meters the exact dose of emamectin benzoate for its size. A sealed, low-pressure injection kit is staged at the root flare — no spraying, no soil drench, and no drift onto your landscape.
02 Drilling the Injection Ports
Small, shallow ports are drilled into the trunk flare — the zone of fastest uptake into the tree’s vascular system. Spacing the ports evenly around the base ensures the treatment is carried to the entire canopy, not just one side of the tree.
03 Setting the Injection Plugs
Self-sealing plugs are seated into each port and connected to the dosing lines. This creates a closed system that delivers the insecticide directly inside the tree, keeping it away from pollinators, pets, and surrounding soil.
04 Direct-to-Vascular Delivery
The tree’s own vascular system draws the emamectin benzoate up into the canopy, where it kills EAB larvae feeding under the bark. A single trunk injection protects the tree for two to three years before retreatment is needed.
Frequently Asked Questions
Are ash trees in Willmar at risk for Emerald Ash Borer?
Yes. Minnesota is under a statewide EAB quarantine, and ash trees across Kandiyohi County are at risk. Willmar carries significant municipal boulevard and yard ash, plus green ash in farmstead shelterbelts and windbreaks throughout the area. We recommend proactive trunk injection treatment to protect high-value ash before infestation causes irreversible decline.
What is the process for EAB treatment and how long does it take?
Our EAB treatment uses a trunk injection of a specialized insecticide that protects the tree from the inside out. The process is quick — typically less than an hour per tree — and provides protection for up to two years. For Willmar properties, we recommend treatment in spring or early summer for best uptake and results.
Why should I choose Timber & Native for EAB treatment in Willmar?
Timber & Native brings ISA Certified Arborists, an MN Certified Tree Inspector (#20104578), and an MN Licensed Pesticide Applicator (#20266038) to every job, along with a deep understanding of west-central Minnesota's ecology. We are fully licensed and insured, and our treatments are backed by current research — the most effective and responsible EAB solution for Willmar and Kandiyohi County clients.