How to Identify Your Ash Tree
Green ash is the most common ash species in Sioux Falls. Look for opposite, compound leaves with 5–9 leaflets, a diamond-patterned bark on mature trees, and clusters of winged seeds (samaras) that hang in bunches through winter.
Signs of EAB Infestation
- D-shaped exit holes — about 1/8 inch wide, distinctive flat edge on one side
- S-shaped galleries — winding tunnels visible when you peel loose bark
- Crown dieback — dead branches starting at the very top, spreading down
- Increased woodpecker activity — birds feeding aggressively on the trunk
- Vertical bark cracks — the tree's stress response to larval damage underneath
- Epicormic sprouts — new growth shooting from the base or main trunk
Treatment vs. Removal — How We Decide
When we assess an ash tree in Sioux Falls, we look at total canopy dieback. Less than 30% loss — treatment is almost always the right call. Between 30–50% — we assess case by case. More than 50% — removal is typically the better investment.
How Trunk Injection Treatment Works
We inject the treatment directly into the tree's vascular system using small ports drilled at the base of the trunk. The treatment circulates throughout the entire tree within a few weeks, reaching the cambium layer where EAB larvae feed. No spraying, no soil drenching — the treatment stays inside the tree.
One treatment lasts 2 years. Use our free EAB Treatment Calculator to get an instant price estimate for your trees.
What Does EAB Treatment Cost?
Pricing is based on your tree's trunk circumference. Use our free EAB cost calculator for an instant quote — just enter the circumference of each ash tree and you'll get your personalized estimate sent directly to your email.