Early Detection & Rapid Response Projects

What is EDRR? How is it managed? 

  • ​Early Detection and Rapid Response (EDRR) species are those species that are invasive in other areas—maybe Wisconsin or downstate in Michigan—but are not yet established in northwest lower Michigan.  We are continually on the lookout for these species through ISN staff and citizen reports through MISIN as well as a connected web of partner organizations throughout the state.
  • EDRR species are a risk to our region because they have a reputation for being invasive elsewhere.  The plan is to be proactive and catch them while it’s cheap(er) and easy(ier) to control the population, rather than waiting until they’re negatively impacting our habitats.
  • EDRR species are ISN’s highest priority.  We are always on the lookout and deeply appreciate your reports through MISIN!  Of course, not all EDRR locations can be treated; the most common barrier is that ISN may not have permission to work on a property.

What is ISN doing about EDRR?

One of our most important EDRR projects is looking for an insect invader that harms our trees: hemlock woolly adelgid. Our survey efforts detected an infestation within Benzie County in 2023, allowing us to begin treating it to save our Hemlocks. This project is a part of a state-wide effort to learn more about where this invader is and isn't in Michigan; the information we gather will be used to create a comprehensive state-wide strategy for management. If you have hemlock trees that need surveying, especially if you're near the Lake Michigan (or Bay) shoreline, please contact us!  No parcel is too small (especially if you get your neighbors on board too).
You can learn more about this project from the NatureChange video on the topic. 
Through funding from the Environmental Protection Agency, US Forest Service, and the Michigan Invasive Species Grant Program, ISN has been able to work on EDRR species throughout our service area.
  • Black swallow-wort:  found in Kinglsey in 2018; working with landowners to treat, remove, and stop the spread.
    Learn more about this project from the NatureChange video on the topic.
  • Giant hogweed:  ISN is controlling 2 populations in Manistee County since 2016; as of 2018 there were very few plants left!
  • Black jetbead:  reported throughout Traverse City and Northport; working with landowners to suggest alternatives since 2016
  • Coltsfoot (assisting):  extensive management on Glen Lake to control coltsfoot and promote Michigan monkeyflower since 2013
  • Hydrilla:  reported in Grand Traverse and Benzie counties in 2016, but response efforts by ISN found no instances of this invader!
HWA Survey Technician Andy Harmon looking for invasive hemlock woolly adelgid.
ISN Crew Member Josh Turner controlling
​black swallow-wort in Kinglsey.