Emerald Ash Borer Detected In Dearborn Co.

Posted On April 25, 2012

Emerald ash borer

(Lawrenceburg, Ind.) – The Indiana Department of Natural Resources says the dreaded tree-killing emerald ash borer has been detected in five more Indiana counties, including Dearborn County.


The metallic green bug has killed tens of millions of ash trees since it was first discovered in the U.S. in Michigan in 2002. Its larvae feed in the phloem and outer sapwood, producing galleries that eventually girdle and kill branches and entire trees.


Clark, Clay, Dearborn, Johnson and Rush counties have been found to have EAB. According to the IDNR’s online EAB Quarantine Map, the Dearborn County discovery was made in the St. Leon area. The nearest confirmations prior to that was in northwestern Ripley County in 2009; northern Boone County, Kentucky in 2010; and Hamilton County, Ohio in 2010.


The department announced Wednesday that it will take a new approach to its quarantine now that only 13 of the state’s 92 counties are not considered “generally infested” with EAB. Movement of regulated ash items within that generally infested area is no longer restricted. 


The beetle, first detected in Indiana in 2004, has now been found in more than 50 counties.


Entomologists say the emerald ash borer’s primary mode of transport is through movement of firewood in campgrounds.


State entomologist Phil Marshall has recommended that movement of regulated ash material and hardwood firewood within infested counties be limited to reduce further spread of the insect. 

Regulated materials include whole ash trees, limbs, branches or debris of ash trees measuring 1 inch or more in diameter, ash logs or untreated ash lumber with bark attached, and cut firewood of any hardwood species with bark attached. 

To view quarantined areas and EAB sightings in Indiana, see dnr.IN.gov/entomolo/5349.htm.

Citizens can report infestations at www.eabindiana.info or call the IDNR’s toll-free hotline at 1-866-NO EXOTIC.

To view the EAB Rules and EAB quarantine declaration visit dnr.IN.gov/entomolo/3443.htm




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