Written by Theresa Rose on August 4, 2016

Emerald Ash Borer (EAB) has been confirmed in the majority of counties in our local area. Now that it is here, property owners are having to make decisions about how to deal with it. Unfortunately, some unsavory individuals may try to take advantage of this situation if property owners do not have the facts.


When EAB was first confirmed in Iowa, Iowa State University Extension and Outreach launched  an Emerald Ash Borer website, The site is kept current and provides a wealth of research based information describing the EAB, where it’s been found, as well as management and treatment options. Three excellent documents for property owners are the publication PM 2084 “Emerald Ash Borer Management Options”, the “Frequently Asked Questions/Answers on Emerald Ash Borer (EAB)” document and the publication PM-3074 “Finding a Certified Pesticide Applicator for Emerald Ash Borer Treatment”. These can be downloaded from the aforementioned website or picked up at any local Extension office.


There are some key things to remember when considering treatment options. First, preventive treatments work best for healthy ash trees planted along streets, in yards or in parks. It is not practical or cost effective to treat woodlot trees. Second, there are different treatment requirements for different sized trees. Third, property owner treatments need to be done in early spring (mid-April to mid-May). Property owners need to contact a certified pesticide applicator (category 3OT) for treatment beyond this timeframe.


EAB is here and Iowa State University Extension and Outreach has resources available to property owners who need to make decisions regarding treatment options. Please visit the ISUEO Emerald Ash Borer website or contact your local Extension office for more information.


ISU Extension and Outreach is part of an educational network supported by Iowa State University, local county governments, and the United States Department of Agriculture.  ISUEO works to increase learning opportunities for citizens of Iowa by providing unbiased, research-based information that will improve quality of life.