Table of Contents
MN GIS/LIS Consortium
From the Chair
Annual Report Online
GLO Field Note Project
FSA Photos 2010
Metro Air Photo Update
Eagan Tracks Diseased Trees
Goodhue Co Historical Features
GISSO Job Fair Report
The City of Eagan uses GIS to Map and Help Track Diseased Tree Removal
By Tami Maddio, City of Eagan
The Emerald Ash Borer (EAB), a highly destructive pest of ash trees, has now been documented in St. Paul (May 2009), in Falcon Heights (November 2009), and in Minneapolis (Tower Hill Park, March 2010), Minnesota. Research indicates that it is very likely that EAB has infested many other ash trees in our area. This exotic beetle, introduced from Asia into the Great Lakes region in 2002, has the potential to devastate millions of ash trees in Minnesota. The City of Eagan is now proactively managing its ash tree resource to prepare for potential EAB.
The City of Eagan estimates there are 4,377 publically owned ash trees within the city boundary. Within weeks of the St. Paul documented EAB infestation, Eagan Forestry developed and adopted an EAB Management Plan. Basically, the plan lays out a variety of management activities to minimize negative impacts of inevitable EAB infestations. Management activities will include chemically protecting high value ash trees in parks and public places, removing poor quality and/or damaged ash trees in parks and public places, and replanting with non-ash tree species.
In an effort to kick-start our EAB management, the city applied for and received a Minnesota Department of Agriculture 2010 Forest Protection Reserve – Planning and Preparedness Grant. Funds from this grant are being used for the Eagan Boulevard Tree EAB Project. There will be no cost to Eagan residents to conduct this project.
The tree removal and treatment process and the grant funds are tracked using a database linked to GIS locations of the boulevard trees. Using ArcMap, Eagan City Forestry staff can click on a tree on a map and get information on individual trees and are also able to view treated trees by area within the City. Mapping grant money distributions has been helpful in tracking where the money is going and how best to use the City’s remaining resources. The forestry staff is also able to produce reports and resident letters directly from the database. This resource has proved to be extremely valuable in the management of the EAB grant project. Using GIS helps visualize the EAB distribution and assists in the planning of staff resources. The integration of the EAB database and GIS allows City forestry staff to use the same processes to track other diseased tree treatments as well as other forestry related projects.
For more information about Eagan City Forestry EAB efforts, contact Tami Maddio at email@example.com or 651-675-5212.