On Friday, March 28, 2014, the Iowa Department of Agriculture and Land Stewardship issued a news release confirming that emerald ash borer (EAB) had been found in a residential tree in Newton in Jasper County. This brings to nine (9) the number of known infestations in Iowa. See the map below.
EAB larvae are borers that can live under the bark of all species of ash trees (Fraxinus spp.). The tunneling by the larvae kills ash trees usually within 2 to 4 years after the tree becomes infested. Tens of millions of ash trees have been killed in the 23 states where EAB has been detected since its initial discovery in Michigan in 2002. See the distribution map at "Where is EAB" at www.emeraldashborer.info
The EAB infestation in Newton was found by a citizen who reported suspect ash trees to City staff. Subsequent inspection by the Iowa Department of Natural Resources (DNR) forestry bureau and the Iowa EAB Team found a larva in the tree that was positively identified by federal identifiers as EAB. Further investigation has discovered approximately 7 trees within a 2 block area that show symptoms of EAB.
Read the news release at the Iowa State University Extension & Outreach web site.
For more on EAB see the following web sites:
- ISU Pest Management and the Environment
- Iowa Department of Natural Resources
- Iowa Department of Agriculture & Land Stewardship
- National EAB website