Invasive Plant Patrol Workshops

>> Please see our Home page for more 2020 season Information <<

Greetings Invasive Plant Patrollers!

We are all working hard to adjust to the new normal vis-a-vis COVID-19, and we greatly appreciate your patience! As announced back in April, LSM will not be conducting any in-person workshops, meetings, etc. in 2020. All webinars and technical assistance sessions will be recorded and posted to the LSM website for viewing at a more convenient time.

Quick links to additional resources

The IPP handbook is updated with new content throughout the year: IPP Handbook
How-to report suspicious aquatic organisms guide: IAS Reporting Guide
Form to submit suspicious aquatic organisms or phenomena: IPP Photo Submission Form
Additional protocols and procedures: LSM IAP Protocols & Procedures

2020 Invasive Plant Patrol Trainings

Sponsored by Bass Pro Shops & Cabelas Outdoor Fund


IPP 101 Webinar Series

Invasive Plant Patrol 101 (LSM’s IPP certification course) is comprised of three parts:

  • Part 1 provides a general introduction to the threat of aquatic invaders;
  • Part 2 provides guidance for conducting an invasive plant screening survey, including discussion of tools and techniques; 
  • Part 3 takes a deep dive into Aquatic Plant ID with a focus on the eleven invasive aquatic plants considered to be most imminent threats to our state, and their native look-a-likes.

Participants who wish to become LSM Certified Invasive Plant Patrollers must pass a short online quiz at the conclusion of each course section. The quiz is optional for all others.
In the final stage of certification, participants are asked to collect several aquatic plants on their own, and then attend one of LSM’s regularly scheduled Plant ID Zoom Sessions (schedule and registration below) for feedback on tentative ID’s and/or guided identification.

IPP 101 Parts 1: Introduction to Aquatic Invaders in Maine

~Link to recording~

~Link to Quiz~

IPP 101 Parts 2: How to Hunt for Aquatic Invaders

~Link to recording~

~Link to Quiz~

IPP 101 Part 3: Aquatic Plants; How to Identify Maine’s 11 Most Unwanted and their Common Native Look-Alikes

~Link to recording~

~Link to Quiz~

Advanced Plant ID Webinar Series

Learn how to confidently identify milfoils, bladderworts, and common pondweeds to species level through this 3-part series presented by LSM’s Invasive Species Program Director, Roberta Hill.

Special thanks to York County Invasive Aquatic Species Project Founder and Director, Laurie Callahan, for her extensive help in preparing these webinars.

Wednesday, August 5,  2PM – 4PM:  Advanced Plant ID Part 1 – Milfoils

Wednesday, August 12,  2PM – 4PM:  Advanced Plant ID Part 2 – Bladderworts

Wednesday, August 19,  2PM – 4PM: Advanced Plant ID Part 3 – Common Pondweeds

~ Registration ~

Lessons from the Littoral Zone

Join LSM’s Roberta Hill for a series of short Go-Pro style videos providing tip on how to maximize direct observation of the littoral zone to enhance survey efficiency and effectiveness. The videos will be posted to the LSM website and Facebook. Please watch for announcements!

Training, Networking and Technical Support Opportunities: Tuesday Afternoon Meetups for IPPers

These first-come, first-served Zoom-based technical assistance sessions are open to all, but attendance will be capped at 14 participants per session. Larger group and/or customized IPP team meetings may be scheduled by contacting Roberta at roberta@lakestewardsmedotorg.

IPPer Zoom Room, Tuesdays from 2 to 2:45 PM

Is the pandemic posing new challenges for your IPP team? Do you have a success story to share or an idea to bounce around with your fellow IPPers? Please join one of these weekly check-in/problem solving/QA/brainstorming sessions.

Tues, June 30 at 2PM – Past event
Tues, July 7 at 2PM – Past event
Tues, July 14 at 2PM – Past event
Tues, July 21 at 2PM – Past event

Tues, July 28 at 2 PM – Register here
Tues, Aug 4 at 2 PM – Register here
Tues, Aug 18 at 2PM – Register here
Tues, Aug 25 at 2PM – Register here


What’s This Aquatic Plant? Tuesdays from 3 to 3:45 PM

Please join us for one of our weekly online plant ID sessions. Taking our cues from the “teach a man to fish” philosophy of providing assistance, we will help walk you through the process of first, determining if you have found a suspicious plant; and next, identifying your plant. Have photos ready of plants you would like us to help you identify. PLEASE click here for directions on how to take a “readable” photo.

Tues, June 30 at 3 PM – Past event
Tues, July 7 at 3 PM – Past event
Tues, July 14 at 3 PM – Past event
Tues, July 21 at 3PM – Past event

Tues, July 28 at 3 PM – Register here
Tues, Aug 4 at 3 PM – Register here
Tues, Aug 18 at 3 PM – Register here
Tues, Aug 25 at 3 PM – Register here

Using the Esri Survey 123 App to Document IAP Screening Surveys

~Link to additional information on Survey 123~
~Link to recording~

Downeast Lakes Land Trust Presents Milfoil in Big Lake: What is it and how do we respond?
Guest Speakers: John McPhedran (Maine Department of Environmental Protection) & Roberta Hill (Lake Stewards of Maine)

Took place on June 16 at 6PM

The recent discovery of variable-leaf milfoil in Big Lake is a wakeup call for the watersheds of the Downeast Lakes region, which are threatened with the invasion of exotic plant species.  These unwanted species can cause irreparable damage to fisheries and native ecosystems, and they can be spread unintentionally on boats, float planes, and even GORE-TEX waders!  Join representatives from the Maine Department of Environmental Protection and Lake Stewards of Maine to learn about the planned response to the Big Lake infestation, as well as how to identify aquatic invasive plants, how to report outbreaks, and how to avoid accidentally spreading these harmful species.
For more on Downeast Lakes Land Trust, please visit their website.

~Link to recording~

Our Mission

The Mission of the Lake Stewards of Maine (LSM) is to help protect Maine lakes through widespread citizen participation in the gathering and dissemination of credible scientific information pertaining to lake health. LSM trains, certifies and provides technical support to hundreds of volunteers who monitor a wide range of indicators of water quality, assess watershed health and function, and screen lakes for invasive aquatic plants and animals. In addition to being the primary source of lake data in the State of Maine, LSM volunteers benefit their local lakes by playing key stewardship and leadership roles in their communities.


LSM is a non-profit 501(c)(3) organization committed to the collection of information pertaining to lake water quality. For 40 years, trained volunteers throughout Maine have donated their time so that we may all learn more about one of Maine’s most beautiful and important resources — our lakes.