Emerald Ash Borer Distribution in Iowa (confirmed)

Encyclopedia Article

Map of Iowa showing current distribution of confirmed EAB infestations as of July 1, 2020.

 

Brown circles on the distribution map indicate a 15-mile radius around confirmed discoveries of EAB.  Ash trees within 15 miles of a confirmed EAB site are considered to be at risk of attack and preventive treatments are suggested for healthy, vigorous and valuable trees within this risk zone.  It may be premature to treat ash trees outside these areas.  Click here to learn more about the emerald ash borer.

Where has EAB been found in Iowa? EAB infestations have been confirmed in the following Iowa counties.

Adair – Bridgewater (Mormon Trail Park), Lake Orient Recreational Area (2016); Greenfield Lake (2018)

Des Moines – Burlington (2013)

Madison – Rural site south of Winterset (2017), Winterset (2018), Clanton Creek Rec Area (2019)

Adams – Rural area north of Cromwell (2016)

Dubuque – Dubuque (2015), Dyersville (2017)

Mahaska – Eddyville (2014), rural area NW of Oskaloosa (2015)

Allamakee –New Albin, Lansing, Black Hawk Point, Plough Slough (2010)

Fayette – Oelwein (2017)

Marion – Maryville (2014), Marion Co. Park (2017)

Appanoose – Moravia (2014)

Floyd – Charles City (2017)

Marshall – Rural area N of Le Grand (2018), Marshalltown (2018)

Audubon – Rural Exira (2020)

Franklin – Hampton (2019)

Monroe – Private property (2014), Albia (2017)

Benton – Belle Plaine (2017)

Greene – East of Grand Junction (2017)

Montgomery – Rural area NW of Red Oak (2015); rural area north of Villisca (2016)

Black Hawk–Waterloo (2014), Deerwood Park (2017)

Grundy – Dike (2018)

Muscatine – Muscatine (2014)

Boone – Boone (2014), Ledges State Park (2017)

Guthrie – Casey (2020)

Page – Clarinda (2018)

Bremer–Waverly (2014)

Hamilton – Rural area near Randall (2018)

Polk – Urbandale, West Des Moines (2015); Des Moines, Mitchellville, Windsor Heights (2016), Johnston (2018), Clive (2019)

Buchanan – Winthrop (2018)

Hardin – Eldora (2018)

Pottawattamie – Council Bluffs (2018), rural Minden (2019)

Buena Vista – Alta (2017)

Harrison – Logan, Missouri Valley (2016)

Poweshiek – Grinnell (2015), Montezuma (2017)

Butler – Clarksville (2017)

Henry – Mt. Pleasant (2014), Geode State Park (2017)

Ringgold – west of Tingley (2017)

Carroll – Rural area west of Carroll (2018)

Howard – Cresco (2017)

Scott – Davenport (2015), Bettendorf (2016), Scott Co. Park (2017), West Lake Park (2017)

Cass – Rural areas near Massena and Anita (2019)

Iowa – Lake Iowa Park (2016), north of Middle Amana (2017), Randolph Wildlife Management Area (2019)

Story – Story City (2014), Ames (2018)

Cedar – Mechanicsville (2013)

Jackson – Bellevue (2017)

Tama – Rural area north of Le Grand (2018)

Cerro Gordo – Mason City (2020)

Jasper – Newton (2014), Rock Creek State Park (2017)

Taylor – Clearfield (2018)

Chickasaw – New Hampton (2019)

Jefferson – Fairfield (2013)

Union – Creston (2013)

Clarke – Osceola (2016)

Johnson – Coralville, Iowa City (2016), south of Oxford (2017); Hawkeye Wildlife Management Area, North Liberty (2019)

Van Buren – Birmingham (2016)

Clayton – Marquette, Monona (2017)

Jones – Anamosa (2019)

Wapello – Eddyville (2014), Eldon (2017)

Clinton – Clinton (2015), De Witt (2019)

Keokuk – Hedrick (2015)

Warren – Rural Milo (2017)

Crawford – Denison (2018)

Lee – Fort Madison (2015)

Washington – Brighton (2016), Washington (2017)

Dallas – Waukee (2015), rural De Soto (2019)

Linn – Cedar Rapids (2015), Toddville (2016), Lisbon (2017), Marion (2018), Hiawatha (2019)

Wayne – North of Corydon (2017)

Davis – Rural area north of Bloomfield (2015)

Louisa – Rural area in central part of county (2016)

Webster – Fort Dodge (2020)

 

Decatur – Rural area north of Grand River (2017)

Lucas – Private woodlot (2014), Chariton (2016) Winneshiek – Decorah (2016)

Delaware – Edgewood (2018)

   

 

Last Reviewed: 
July, 2020
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