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EMERALD ASH BORER CONFIRMED IN POWESHIEK COUNTY, IOWA
Twenty-five counties in Iowa have confirmed infestations
A new detection of an invasive pest has been positively identified after a larva sample was collected from a city-owned tree in Grinnell on June 16, 2015. This brings the total of confirmed infested counties to twenty-five since emerald ash borer (EAB) was first discovered in Iowa in 2010. This small, metallic-green beetle native to Asia kills ash tree species.
“This finding marks the seventh county in 2015 where EAB has been detected said Mike Kintner, Iowa Department of Agriculture and Land Stewardship EAB and gypsy moth coordinator. “As the summer wears on and people are more observant of their ash trees, it is inevitable that more counties will be added to the list.”
The City of Grinnell Public Services has been proactively planning for the arrival of EAB, prioritizing the removal of ash trees in poorest condition first. Along with removing declining ash trees, the city will be incorporating replacement trees and preventative treatment for select trees. City of Grinnell has approximately 400 city-owned ash trees.
A statewide quarantine, issued in February 2014, remains in place, restricting the movement of hardwood firewood, ash logs, wood chips and ash tree nursery stock out of Iowa into non-quarantined areas of other states.
The Iowa EAB Team provides EAB diagnostic assistance to landowners and includes officials from Iowa Department of Agriculture and Land Stewardship, Iowa State University Extension and Outreach, the Iowa Department of Natural Resources, USDA Animal Plant Health Inspection Service and the USDA Forest Service.
The Iowa EAB Team strongly cautions Iowans not to transport firewood across county or state lines, since the movement of firewood throughout Iowa or to other states poses the greatest threat to quickly spread EAB and other plant pests. Most EAB infestations in the United States have
been started by people unknowingly moving infested firewood, nursery plants or sawmill logs. The adult beetle also can fly short distances, approximately 2 to 5 miles.
At this calendar date, the treatment window for soil-applied preventive treatment measures (soil injection, or soil drench, or granular application) has ended. Basal trunk sprays with dinotefuran can be applied until mid-June and are most effective for trees less than 18” dbh – the diameter of the tree’s trunk at breast height, 4 ½ feet above the ground. Trunk injection remains a viable EAB management option, as this method can be done when the tree has a full canopy of leaves (now through August), provided there is good ground moisture. If a landowner is interested in protecting a valuable and healthy ash tree within 15 miles of a known infestation, he or she should have landscape and tree service companies bid on work, review the bids, and treat during the recommended treatment time.
Please contact Iowa EAB Team members to have suspicious looking trees checked in counties not currently known to be infested. The State of Iowa will continue to track the movement of EAB on a county-by-county basis. Before a county can be officially recognized as infested, proof of a reproducing population is needed and an EAB must be collected and verified by USDA entomologists.
To learn more about EAB and other pests that are threatening Iowa’s tree population, please visit www.IowaTreePests.com. Please contact any of the following members of the Iowa EAB Team for further information:
? Mike Kintner, IDALS EAB coordinator, 515-745-2877, Mike.Kintner@IowaAgriculture.gov
? Robin Pruisner, IDALS state entomologist, 515-725-1470, Robin.Pruisner@IowaAgriculture.gov
? Paul Tauke, DNR state forester, 515-725-8450, Paul.Tauke@dnr.iowa.gov
? Tivon Feeley, DNR Forest Health Coordinator, 515-725-8453, Tivon.firstname.lastname@example.org
? Emma Hanigan, DNR urban forestry coordinator, 515-725-8454, Emma.Hanigan@dnr.iowa.gov
? Jesse Randall, ISU Extension and Outreach forester, 515-294-1168, Randallj@iastate.edu
? Mark Shour, ISU Extension and Outreach entomologist, 515-294-5963, email@example.com
? Laura Jesse, ISU Extension and Outreach entomologist, ISU Plant and Insect Diagnostic Clinic, 515-294-0581, firstname.lastname@example.org
? Donald Lewis, ISU Extension and Outreach entomologist, 515-294-1101, email@example.com.
? Jeff Iles, ISU Extension and Outreach horticulturist, 515-294-3718, firstname.lastname@example.org
The cleanup will be on Saturday, April 11 from 9 AM-11 AM. Check-in will be located at the Summer Street Park pavilion. Click here to RSVP to volunteer.
Here’s what you need to know:
Be prepared to get dirty! Depending on water level in the creek, you may want to bring waders or boots if you have them. Wear old clothes and tennis shoes to climb in and out of the creek and/or walk in the woods. Other items you may want are sunscreen bug repellent, gardening gloves or rubber cleaning gloves.
Garbage bags, latex gloves, bottled water, and first aid will be available. If you have refillable water bottles, feel free to bring those! A few shovels will be available to dig out tires and other large debris, but if you have other tools and shovels, feel free to label and bring them. Also, bring along buckets if you have them because garbage bags tend to get caught on tree branches and tear.
View the event poster here: LBC Cleanup 2015 Flyer
We can’t Imagine Grinnell without you! Imagine Grinnell sincerely thanks you for your past support and all that you have allowed Imagine Grinnell to accomplish in our community. By supporting Imagine Grinnell, you ensure a future filled with accomplishments that keep our community green, playing, and growing.
This year, Imagine Grinnell is taking on a number of new projects, including:
- Establishing a composting site
- Promoting green schools
- Starting a plastic bag campaign
- Installing trail lighting and signs
- Improving sidewalks
- Adding water fountains on trails
- Creating a youth garden at Summer Street Park
- Building monarch butterfly way stations
This winter, spread the holiday cheer by giving a gift that can benefit all of our community members: an Imagine Grinnell membership or donation. Imagine Grinnell’s programs impact everyone from children to adults.
By becoming a member, you can become an integral part of the Imagine Grinnell team by writing grants that support community programs and services, providing programming for recreation, environmental improvements, and energy conservation, supporting new initiatives that improve the quality of life in Grinnell, promoting a healthy environment, complement economic development efforts in our community, and participating in events and volunteer opportunities.
Donations of any size also play a critical role in ensuring Imagine Grinnell can continue to provide our services and programs. By donating to Imagine Grinnell, you are giving a gift that will not only benefit our current community, but will also benefit the next generation of our community.
Becoming a member and donating is easy to do! Just visit our membership and donation page on our website! Thank you for your support, and we hope you have a very happy holiday.
Imagine Grinnell is currently building a natural playscape in Summer Street Park.
Imagine Grinnell is asking the community to help us build this park, located at the intersection of 3rd Avenue & Summer Street. We are asking volunteers with many different levels of abilities to come out and volunteer 3 hours on Sunday, October 26th 1 pm-4 pm.
We will be working on
- Install the roof
- Clean up the area
2) Move soil around bridge
3) Trim Trees and vegetation around the play features
Please contact Sarah Smith at email@example.com or call 641-236-5518 ext 223 if you have any questions.