Emerald Ash Borer Distribution in Iowa (confirmed)

Encyclopedia Article

Map of Iowa showing current distribution of confirmed EAB infestations as of August 9, 2021

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)

Dubuque – Dubuque (2015), Dyersville (2017)

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

Adams – Rural area north of Cromwell (2016)

Fayette – Oelwein (2017)

Mills – Glenwood (2020)

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

Floyd – Charles City (2017)

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

Appanoose – Moravia (2014)

Franklin – Hampton (2019)

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

Audubon – Rural Exira (2020)

Fremont - rural Farragut (2021)

Muscatine – Muscatine (2014), Wiese Slough WMA, Rural Fairport, rural Nichols (2020)

Benton – Belle Plaine (2017), Newhall (2020)

Greene – East of Grand Junction (2017)

Page – Clarinda (2018)

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

Grundy – Dike (2018)

Pocahontas - Little Clear Lake (2021)

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

Guthrie – Casey (2020)

Polk – Urbandale, West Des Moines (2015); Des Moines, Mitchellville, Windsor Heights (2016), Johnston (2018), Clive (2019), Ankeny (2020), Altoona (2020)

Bremer–Waverly (2014)

Hamilton – Rural area near Randall (2018), Stratford City Park (2020)

Pottawattamie – Council Bluffs (2018), rural Minden (2019), rural Walnut (2020)

Buchanan – Winthrop (2018)

Hardin – Eldora (2018)

Poweshiek – Grinnell (2015), Montezuma (2017)

Buena Vista – Alta (2017)

Harrison – Logan, Missouri Valley (2016)

Ringgold – west of Tingley (2017)

Butler – Clarksville (2017)

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

Sac – rural site outside Schaller (2020)

Calhoun – Farnhamville (2021)

Howard – Cresco (2017)

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

Carroll – Rural area west of Carroll (2018)

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

Shelby – Shelby (2020)

Cass – Rural areas near Massena and Anita (2019), Lake Anita State Park (2020)

Jackson – Bellevue (2017), Maquoketa (2020), rural Miles (2020)

Story – Story City (2014), Ames (2018), Hickory Grove Park/Colo, Nevada (2020)

Cedar – Mechanicsville (2013)

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

Tama – Rural area north of Le Grand (2018)

Cerro Gordo – Mason City (2020)

Jefferson – Fairfield (2013)

Taylor – Clearfield (2018)

Chickasaw – New Hampton (2019)

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

Union – Creston (2013)

Cherokee County, Aurelia (2021)

Jones – Anamosa (2019)

Van Buren – Birmingham (2016)

Clarke – Osceola (2016)

Keokuk – Hedrick (2015)

Wapello – Eddyville (2014), Eldon (2017)

Clayton – Marquette, Monona (2017), Guttenberg (2020)

Lee – Fort Madison (2015)

Warren – Rural Milo (2017)

Clinton – Clinton (2015), De Witt (2019), Syracuse WMA (2020)

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

Washington – Brighton (2016), Washington (2017)

Crawford – Denison (2018)

Louisa – Rural area in the central part of the county (2016), Columbus Junction (2020)

Wayne – North of Corydon (2017), rural Seymour (2021)

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

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

Webster – Fort Dodge (2020)

Davis – Rural area north of Bloomfield (2015)

Lyon - Rural Inwood (2021)

Winneshiek – Decorah (2016)

Decatur – Rural area north of Grand River (2017)

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

Wright - rural Dows (2021)

Delaware – Edgewood (2018)

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

Worth – Manly (2021)

Des Moines – Burlington (2013)

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

Wright - rural Dows (2021)

 

 

Last Reviewed: 
August, 2021
Category: