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How much does Emerald Ash Borer treatment cost in Toledo?

Emerald Ash Borer (EAB) treatment in Toledo runs $8–$15 per inch of trunk diameter for emamectin benzoate trunk injection — the only proven prevention. Average mature ash (15" diameter): $120–$225 every 2-3 years. Treatment only works on healthy trees not yet showing canopy decline. Already-infected trees need removal, not treatment.

Low
$120
Typical
$285
High
$2,800

What affects the price

  • Treatment method
    Emamectin benzoate trunk injection (TREE-äge, TREE-läk): $8-15/inch DBH, lasts 2-3 years. Soil drench (imidacloprid): $4-8/inch but less effective, annual. Emamectin is the gold standard.
  • Tree size (DBH)
    Diameter at breast height (4.5 ft up). Small ash (8" DBH): $100-150. Medium (15" DBH): $200-300. Large (24"+ DBH): $350-650 per treatment.
  • Health at start
    Treatment only works on healthy ash (under 30% canopy decline). Beyond that, the tree is doomed — invest in removal, not treatment.
  • Removal alternative
    If tree is past saving: removal cost runs $850-2,500 for medium-large ash (brittle wood = harder/more dangerous to remove).

What's included

  • Tree health assessment (verify worth treating)
  • Trunk injection ports drilled at base
  • Calibrated dose of emamectin benzoate
  • Treatment record (proves continuous protection)
  • Re-treatment schedule (every 2-3 years)

When to call

If you have a mature ash tree (especially in Old West End, Old Orchard — Toledo's heaviest ash neighborhoods) and you want to save it. Trees over 8" DBH worth treating IF healthy. Trees under 6" DBH can be replaced for less than 10 years of treatment cost. Treat in May-June for best uptake.

Related questions

How can I tell if my ash tree is dying from EAB?

Top-down canopy decline (dieback at top first). D-shaped exit holes in bark (1/8"). Serpentine 'galleries' under bark when peeled. Excess woodpecker activity (they target EAB larvae). Epicormic shoots (sucker growth from trunk). If you see 30%+ canopy decline, it's too late to treat.

Should I treat or remove?

Healthy + treasured ash worth $1,000+ in landscape value: treat indefinitely. Average yard ash + replacement cost is comparable: remove + replace with EAB-resistant species (oak, maple, elm hybrids). Toledo offered EAB cost-share programs in past — check current City of Toledo Forestry status.

What about the City of Toledo's tree-lawn ash trees?

City of Toledo Forestry handles street trees (between sidewalk + curb). They've removed most ash on tree lawns by now. If you have a tree-lawn ash that's still alive, call Toledo Forestry at (419) 245-1815 — don't treat or remove yourself.

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