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Emerald Ash Borer discovered in Marion

Post Date:08/08/2018 11:30 AM

The City of Marion is the latest community to discover the presence of the highly destructive insect known as the Emerald Ash Borer (EAB). The EAB is a small, metallic green, non-native invasive pest. The larvae feast on the trunks of Ash trees, ultimately disrupting their ability to transport nutrients and causing the tree's eventual decline and death.

The infestation in Marion was discovered on private property along 44th Street and north of Business Hwy. 151. Ash trees in the immediate area will be assessed for EAB activity. If additional EAB detection is found, an expanded survey will be initiated.

The City has been preparing for the eventual arrival of the Emerald Ash Borer by formulating an EAB Response Plan. The plan includes actively removing low value, poor conditioned public Ash trees, or utilizing insecticide treatments on trees determined to be of high value by the Marion Tree Board and Forestry Staff.

Currently, Ash trees make up approximately 15 percent of Marion's public tree canopy, or 991 trees. Ash trees in the infested area will be scheduled for removal; dead or poor conditioned trees will be given priority.

Home owners are responsible for Ash trees on their personal property and are encouraged to contact a professional tree service to assist with a treatment or removal plan. Residents concerned about their privately-owned Ash trees can check for the following symptoms, since these symptoms are usually apparent before the borer is spotted:

  • Canopy/crown dieback
  • 1/8" D-shaped exit holes on trunk or branches
  • Irregular branching with suckers sprouting at the base of the trunk
  • Woodpecker flecking activity on tree branches

Residents may also contact the Marion Parks and Recreation Department at (319) 447-3580 for confirmation of suspected EAB or additional information.