Skip to Main Content

Blog


Emerald Ash Borer
Monday, August 25, 2014
The emerald ash borer (EAB), Agrilus planipennis, is an exotic insect pest from Asia. The flattened, creamy white larval stage feeds below the bark and cuts off the living, water and nutrient conducting vessels causing tree death. Adults are small elongated oval beetles that are metallic green in color. This insect colonizes the top of ash trees (Fraxinus species) first, then moves down the tree.

“EAB has been found in 9 Iowa counties (Allamakee, Black Hawk, Bremer, Cedar, Des Moines, Jasper, Jefferson, Union, and Wapello). As of February 2014, all 99 counties in Iowa have been quarantined (Quarantine Map) by the Iowa Department of Agriculture and Land Stewardship to slow the movement of this destructive pest to non-quarantined areas/states. A cooperative state and federal effort has developed the “Iowa Emerald Ash Borer Readiness Plan.” EAB has also been found in 21 other states, including Illinois, Minnesota, Missouri, and Wisconsin, on Iowa’s borders.”

ISU experts encourage Iowa homeowners to evaluate their ash tree’s health and value in the landscape, and their commitment to years of preventive treatments. If an ash tree is within 15 miles of a known EAB infestation, preventive treatments are suggested for individual trees. Check out all of the information (including some in Spanish) about this pest that threatens Iowa’s forests.

Emerald Ash Borer. (2014, August 25). Retrieved from http://www.extension.iastate.edu/pme/EmeraldAshBorer.html


Blog History

3/24/2016 - Dallas County Foundation funds new Gator for Brenton Arboretum
2/15/2016 - The Best Tree You've Never Heard Of
7/1/2015 - Stormwater Walk
5/22/2015 - Historic Homes & Gardens of the Scottich Highlands Tour
12/15/2014 - Emerald Ash Borer Confirmed in Five Southern Iowa Counties
10/24/2014 - 2014 Urban Tree Conference
8/25/2014 - Emerald Ash Borer
7/17/2014 - Vanishing Acts: Trees Under Threat Exhibit
5/7/2014 - INTOXICATING!
3/4/2014 - Plant Conservation at the Brenton Arboretum
2/18/2014 - Drought 2012 by Becky Strom
2/4/2014 - Emerald Ash Borer Confirmed in Bremer and Wapello Counties
1/28/2014 - Drake University Contest
1/13/2014 - The Des Moines Register ‘s Editorial: Iowa needs to focus on ash tree disaster
1/13/2014 - Des Moines Register, Iowa View: 32,000 football fields of trees gone
1/4/2014 - Happy Holidays from the Brenton Arboretum!
1/3/2014 - Osage Orange
10/23/2013 - The Chiara Quartet