Connecticut Invasive Plant Working Group 2024

Connecticut Invasive Plant Working Group

Invasive Plants s Native Alternatives s Education s Networking CIPWG.UConn.edu info@CIPWG.org facebook.com/CIPWG

Connecticut Invasive Plant Working Group (CIPWG) 2024 Annual Report

The Connecticut Invasive Plant Working Group (CIPWG) is a consortium of individuals, members of environmental organizations, and affiliates of municipal and state agencies whose mission is to promote awareness of invasive plants and their non-invasive exotic and native alternatives.  Formed in 1997 as an ad-hoc group, CIPWG is now in its 27th year of operation.  The working group meets 1 to 2 times per year to collaborate and share information on the presence, distribution, ecological impacts, and management of invasive plants affecting Connecticut and the region and to promote uses of native or non-invasive alternatives.  CIPWG members are affiliated with federal and state agencies, municipalities, non-governmental organizations (NGOs), educational institutions, the green industry, and the general community.  Rose Hiskes (Connecticut Agricultural Experiment Station), Vickie Wallace (UConn Extension), and Emmett Varricchio serve as CIPWG Co-Chairs.

Ms. Wallace also serves as CIPWG’s liaison to UConn, which hosts CIPWG’s website (cipwg.uconn.edu). Alyssa Siegel-Miles and Sara Tomis serve as the CIPWG webmasters. The website provides information on invasive plant topics that include identification, management, various lists of invasive plants, photos of invasive plants, invasive alternatives, resources, legislative updates, and Connecticut Invasive Plants Council activities. In addition to the Connecticut List of Invasive and Potentially Invasive Plants determined by the Connecticut Invasive Plants Council in accordance with Connecticut General Statutes §22a-381a through §22a-381d, the website includes an Early Detection list and a Research List of plants for which more research is needed. The CIPWG website provides links to the Early Detection and Distribution Mapping System (EDDMapS, eddmaps.org) to submit reports of invasive plants. Additional features include a photo notebook with a gallery of Connecticut invasive plants and links to invasive plant fact sheets and management information. During the 2024 calendar year, there were 89,000 page views on the CIPWG website, and 47,000 users participated in 62,000 sessions. Users arrive at the site primarily (84%) through search results. The most visited pages are the Invasive Plant List (33K), the home page (9.2K) and the 2024 plant symposium page (3.7K).

CIPWG’s news and events listserv has approximately 1350 members from Connecticut and other states in the region. Requests to subscribe to the listserv may be submitted online from the CIPWG website.

The Connecticut Invasive Plant Working Group maintains the following subcommittees:

  • Education and Outreach (educational outreach about invasive species and their alternatives)
    • CIPWG display was used at 5 events around the state in 2024.
    • Outdoor Educators held 6 free “Walk, Talk and Cut” events in 5 of Connecticut’s counties.
      • 96 people attended these events.
    • Management (develop and disseminate information on invasive plant control options)
    • Native Alternatives (explore and promote the use of native plant species as alternatives to invasives)
    • Research List Review 
      • Developed criteria regarding additional plants on the CT Invasive Plant list to be prohibited from sale and presented recommendations to the CIPWG Steering Committee. The Steering Committee voted for the adoption of recommendations and presented the recommendations to the Invasive Plant Council in October 2024.
      • Reviewed plants to be added to the CIPWG Invasive Plant Research List.

Dr. Lauren Kurtz was hired as the UConn Invasive Species Outreach Specialist in January 2024. She has been a valued member of several CIPWG subcommittees and started the CIPWG Facebook page. As of December 2024, the page had 163 followers. 13,275 people have been reached through the page, with 12,204 views since September 2024.

CIPWG provides a List of Speakers who are available to give presentations on many invasive plant-related topics, including identification, control, and non-invasive alternatives. CIPWG members and volunteers coordinated and presented numerous lectures, workshops, demonstrations, guided field walks, and invasive plant management events during 2023. CIPWG also maintains exhibits that feature invasive terrestrial plants and aquatic species that have been displayed at public events.

Since 2002, CIPWG has hosted biennial invasive plant symposia. The twelfth biennial symposium was held in Storrs, CT on October 29, 2024, with 390 people attending. The symposium theme was Real Talk – Making an Impact in Invasive Plant Management. The all-day event featured regional and local experts as well as citizen volunteers sharing practical solutions for invasive plant management and actions needed to promote native species and improve wildlife habitat.

The morning session included a keynote presentation by Peter Picone, CT DEEP: “For the Love of Plants…To Plant or Not to Plant? A Wildlife Biologist’s Perspective” and “CIPWG’s Role in Combatting Invasive Plants” by Victoria Wallace and Lauren Kurtz, UConn, and Bryan Connolly, ECSU.

The afternoon breakout session speakers and titles were:

1) Case Studies in Managing Tree of Heaven and Mugwort: Speakers: Art Gover, Penn State; Jatinder Aulakh, CAES. Moderator: Todd Mervosh, TM Agricultural & Ecological Services

2) Leveraging Community Engagement: Speakers: Bill Marshall, South Windsor Invasive Plants Working Group; Greg Foran, Town of Glastonbury; Sarah Hutchison and Lisa Brodlie, Pulling Together. Moderator: Vickie Wallace, UConn, CIPWG Co-chair

3) Pollinator Meadows at Robbins Swamp Wildlife Management Area Help Support Native Wild Bees and Monarchs: Speakers: Kelsey Fisher and Tracy Zarrillo, CAES. Moderator: Joshua Tracy, South Central Connecticut Regional Water Authority

4) Aquatic Invasive Plant Management and Prevention: Speakers: Jeremiah Foley and Greg Bugbee, CAES. Moderator: Lauren Kurtz, UConn

5) Common Questions about Invasive Plant Management (Panel): Speakers: Todd Mervosh, TM Agricultural & Ecological Services; Christian Allyn, Invasive Plant Solutions; Kathy Connolly, Speaking of Landscapes, Inc. Moderator: Emmett Varricchio, CIPWG Co-chair

6) Native Plant Availability: Speakers: David Lee, Saratoga Bareroot Nursery; Alyssa Siegel-Miles and Sara Tomis, UConn Extension; Darryl Newman, Planters’ Choice Nursery. Moderator: Peter Picone, CT DEEP

Symposium 2024 handouts, powerpoints, and information are available on the CIPWG website (cipwg.uconn.edu).

2024 Educational Outreach and Management Activities

CIPWG exhibits were displayed, invasive plant talks were presented, invasive plant educational materials were provided, and/or invasive plant management activities occurred at the following (see table below) local, statewide, and regional events during 2024. All towns are in CT unless otherwise noted; activities occurred in over 60 CT towns. At least 6,354 citizens directly and actively participated in the activities. A minimum of 21,313 hours were directly invested in invasive plant management, during intensive invasive plant training sessions and management activities, as well as educational outreach. Many (at least 32,525) were reached indirectly through articles, YouTube videos, social media, fact sheets, signs, and other educational mediums.

Location Educator/ Leader/ Reporter Program Title/Outreach Activity # Partici-pants or Attendees # Hours Contri-buted

Direct Participation

Ashford Charlotte Pyle Presentation for Ashford Conservation Commission and Pollinator Pathways – Nature’s Best Hope – Backyard Pollinator Gardens. Covered invasive listing criteria and harm caused plus ecological values of native alternatives; contributed to Q&A on use of native alternatives. Two CIPWG handouts provided (6/4) 20 30
Bethany Alison Beres-Nork Information table at Bethany Harvest Fest with educational materials/samples of invasive plants (October) 300 85
Bethany Alison Beres-Nork Guided walk on a Bethany Land Trust property and showing participants early signs of invasive spring growth (April) 20 80
Bridgeport Greg Bugbee Presented an Invasive Aquatic Plant Workshop to a middle school class at the Beardsley Park Zoo (3/26) 26 104
Bristol Greg Bugbee Presented an invited talk on “Update on Invasive Aquatic Plants in Connecticut” at the Connecticut Federation of Lakes annual meeting at the Bristol Nature Center (4/27) 66 264
Bristol Greg Bugbee Gave an invited talk entitled “Connecticut Invasive Aquatic Plant Update” at the Connecticut Association of Conservation and Inland Wetland Commission’s annual meeting at the Bristol Event Center (11/16) 56 112
Bristol Rose Hiskes CIPWG Display at CACIWC 200 50
Bristol Lauren Kurtz Presentation at CT Association of Conservation and Inland Wetland Commissions (CACIWC) Invasive Plant Updates & Prioritizing Management 100 150
Canaan Tom Zetterstrom Foliar spray of young bittersweet vines across Rattlesnake Hill (July-September) 2 18
Canaan Tom Zetterstrom Eradication of roadside mugwort with chemical treatment (July & August) 1 6
Canaan Tom Zetterstrom Management of herbaceous and woody invasives at Olle’s Woods (April-October) 1 100
Canton Karen K Berger Guided tours of the Collinsville Pollen Trail for Canton fifth grade classes focusing on insects and plants that co-evolved to benefit a single species or many, the ongoing restoration of the habitat from ground to canopy by removing Japanese knotweed and other invasive plants while planting natives and the nesting activity in the four bluebird boxes. The students planted cosmos seeds which
were later transplanted into the native plant beds where they thrived all summer (5/20)
40 80
Canton Karen K Berger Collinsville Pollen Trail Invasive Plant Management, 234 hours from 75 volunteers over 35 days. 75 234
Canton Karen K Berger Mills Pond Recreation Center Invasive Plant Management, 65 hours from 25 volunteers over 13 days. 25 65
Cheshire Karen Schnitzer Removal and cutting of autumn olive, multiflora rose, and bittersweet (March) 1 4
Cheshire Karen Schnitzer Removal and cutting of barberry, burning bush, and autumn olive (April) 1 4
Cheshire Karen Schnitzer Removal and cutting of knotweed and bittersweet (May, June) 1 10
Cheshire Karen Schnitzer Removal and cutting of knotweed, forsythia, and bittersweet (July) 2 4
Cheshire Karen Schnitzer Removal and cutting of knotweed, mile-a-minute, and porcelain berry (August) 1 5
Cheshire Karen Schnitzer Invasive species removal (3/3) 4 7
Chester Michael Cressman Chester Land Trust (CLT) worked with Christian Allyn (owner/operator of the company Invasive Plant Solutions) for mitigation of Japanese Knotweed, Mugwort and Multiflora Rose mitigation at the Carini, Scudder and Rayner Preserves, which are CLT properties adjacent to the Pattaconk and Great Brooks. Japanese Knotweed was present all along the brook banks and near a gazebo at Carini Preserve and was the predominant plant at the Preserve prior to intervention, which began about 3 years ago (October) 10 80
Clinton Greg Bugbee Met virtually with the Lochwood Lake (Clinton) Board of Directors to discuss strategies for controlling variable watermilfoil and other nuisance vegetation 16 32
Coventry Frank Belknap Display and short presentation at Coventry senior center (5/29) 40 80
Coventry Tony Demitraszek Invasive plant removal activity: uprooted various invasive species: mainly Rosa Multi-flora with some barberry and burning bush (11/1) 1 8
Coventry and Mansfield Eric Thomas Water Chestnut (Trapa) recon and collection/upload disposal and reporting to Towns of Coventry and Mansfield as action step for their 2023 Eagleville Lake Aquatic Vegetation Management Plan (8/2, 8/8, 8/18, 8/28, 8/29) 24 88
East Granby Catherine A Delasco Invasive plant removal work parties. Cut/painted or dug up Oriental bittersweet, Japanese barberry, border privet, winged euonymus, multiflora rose, common greenbrier, common buckthorn, autumn olive, Japanese Knotweed. Simsbury Land Trust’s Invasive Plant Booklet provided (July-October) 20 800
East Haddam Greg Bugbee Gave an invited talk on “Hydrilla in the Connecticut River” at a United States Army Corps of Engineers public meeting at the East Haddam Town Hall on “Hydrilla in the Connecticut River” (6/27) 56 112
East Hampton Greg Bugbee Provided guidance at the “Hydrilla Rake the Lake Day” at Lake Pocotopaug in East Hampton (9/22) 16 64
East Hartford Greg Bugbee & Summer Stebbins Facilitated two Invasive Aquatic Plants Workshops at the Envirothon at Goodwin College (1/13) 57 342
East Lyme Pollinator Pathway East Lyme Members DEEP Wildlife Biologist Peter Picone and Dr. Charlotte Pyle lead a day long workshop.  Charlotte introduced invasive plants in New England, how they damage the environment via a PowerPoint presentation and then held a hands-on demonstration of live examples of invasive plants. She brought many branches, pods, seeds, etc. Peter Picone led a field site identification of invasives on the grounds of the East Lyme Community Center. For each invasive plant species, he explained how to eradicate and remove it. East Lyme town employees attended, 11 students from Three Rivers Community College Environmental Engineering program and many residents from southeastern CT attended. Pollinator Pathway East Lyme provided CIPWG Invasive Plant charts to all attendees (2/16) 37 225
East Lyme Marjorie Meekhoff Invasive Plant Management Activity/Training Workshop. Monthly chart for eradication was distributed (March through August) 4 102
East Lyme Marjorie Meekhoff Removal of Ailanthus (October) 3 4
Easton Kathy Connolly Presentation for the Easton Garden Club entitled “Three Ways to Fight Invasive Plants” (4/10) 36 38
Essex Greg Bugbee Presented an invited talk on “Invasive Aquatic Plants and Their Management” to the Essex Land Trust at the Essex Town Hall (4/3) 26 104
Falls Village Tom Zetterstrom Supervision of mugwort chemical treatment (July & August) 2 3
Falls Village Tom Zetterstrom Landscape Invasive Class at HVRHS (March) 15 10
Granby Ted Goerner Multi-day invasive plant lesson for the seventh graders of Granby Middle School. Students learned about Asiatic Bittersweet through a Google Slideshow. They then completed a packet that required them to learn key facts from the slideshow and the USGS key including positive identification.   We then went outside to cut berries off of the bittersweet plants covering a fence line.  They then analyzed the berries and plants to again positively identify it as invasive.  They collected a variety of data including number of seeds per berry (October) 160 640
Granby Rose Hiskes Invasive Plant Walk and Talk 12 19
Griswold Greg Bugbee Presented the results of the CAES OAIS 2023 aquic vegetation survey of Pachaug Pond to the Pachaug Pond Weed Control Authority at the Griswold Town Hall (2/28) 26 104
Guilford Valerie Allgrove Walk through of an area. Found Rosa multiflora, Common daylilies, garlic mustard, ramps, marsh marigolds, Witch-hazel, Lindera benzoin, skunk cabbage, and false Hellebores in area along a stream under Route 95 (4/10) 1 2
Haddam Lauren Kurtz;

CT DEEP

Water Chestnut Pull on Salmon River June 2024 15 75
Hamden Greg Bugbee Spoke on the history of the Connecticut Agricultural Experiment Station as part of welcoming remarks to the United States Army Corps of Engineers Aquatic Plant Workshop hosted in the Jones Auditorium (9/10) 31 31
Hampton Alan Freeman Ongoing invasive eradication and control on managed forest land with passive recreation activities. Planting of 22 mixed hardwood and concolor fir tree seedlings to enhance woodland and habitat for bees, birds, other beneficial insects. Watering program throughout October of seedlings due to drought (April-October) 2 100
Hartford Frank Belknap and Rose Hiskes CT Flower show display and handouts provided as needed (2/22) 100 300
Hartford Greg Bugbee Spoke on hydrilla in the Connecticut River at a press conference hosted by Senator Richard Blumenthal at Riverside Park in Hartford (6/26) 26 52
Harwinton Rose Hiskes Invasive Plant Walk, Talk, Cut. Identification and management techniques for each species were discussed (11/2). 9 19
Hebron Corinne Gordon Thurstan Removal of over 250 Japanese barberry plants from private woodland area that abuts the salmon river forest. Working on invasive honeysuckle bush, climbing rose and poison ivy (5/24) 1 160
Litchfield County Tom Zetterstrom Advocated for roadside & riparian knotweed chemical control (July & September) 10 6
Lyme Lyme Pollinator Pathway Members Lyme Nix-the-Knotweed Days. Used method of 3s to remove Japanese knotweed from several manageable Town of Lyme plots – 4th year for three times a year cuts (May, June, August). Cut to the roots and disposed of the cuttings. Planted native plants last fall. The goal is education and encouragement for volunteers to tackle knotweed in their own neighborhood. Some participants from the past years no longer attend the work parties because they are tackling their own. 16 100
Lyme Lyme Pollinator Pathway Members Work and Learn Parties- Three 2-hour sessions to identify and remove Japanese barberry and other invasives at Lee Farm ruins in Hartman Park. About four acres of Japanese barberry heavy infestation was mowed with a rotary mower for three years. This year volunteers pulled the weakened barberry out by hand. Bushes that did not pull out easily were hand cut and painted with triclopyr herbicide. Removal of Winged euonymus, stiltgrass, narrowleaf bittercress, honeysuckle, and mugwort. Native plants are making headway. 15 30
Lyme Lyme Pollinator Pathway Members Work and Learn Party- Removal of spotted knapweed in Hartman Park Utility Right-of-way. Pulled it out by the roots and filled 12 bags for disposal. 5 12
Lyme Wendolyn Hill and Professor Bryan Connolly Work and Learn party- Lab for ECSU Biology of Plants class. 1-hour session to identify and remove autumn olive and other invasive plants at Hartman Park Utility right-of-way. 13 14
Lyme Regan Stacy Tree Collective, Lyme Land Trust Youth group (ages 14-18 yr) – Identification and removal of bittersweet in Hartman Park. 5 12
Lyme Lyme Pollinator Pathway Members Work and Learn Parties-Two 2-hr sessions to ID and remove Japanese barberry from Mt Archer Woods Preserve, Mt Archer Rd, Lyme (multi-year project). A combination of flail mower and rotary mowers were used for three years to mow a heavy infestation of about three acres of Japanese barberry. Pulled out winged euonymus and stilt grass. Native plants are making headway. 20 40
Manchester Frank Belknap Earth Day event: a display at sign table where top invasive plants were discussed (4/22) 50 100
Manchester Donna Kaffenberger Invasive Species walk at the Nike Site in Manchester, CT (7/6) 9 12
Manchester Donna Kaffenberger Invasive species identification walk at Cheney Trail in Manchester CT.  Gathered look-a likes to help people correctly identify Tree of Heaven compared to three different native Rhus and talked about the importance of having a complete plan in place for managing invasives, including thinking ahead and planning what you are going to plant once you remove the invasives to help prevent reinfestation (8/25) 16 18
Manchester Lauren Kurtz Invasive Plant Problems and Solutions – presentation at Manchester Public Library. June 2024 43 65
Middletown Greg Bugbee Gave an invited talk on “Hydrilla in the Connecticut River” at a United States Army Corps of Engineers public meeting at the Middletown Town Hall (6/4) 26 52
Middletown Emily Picard Site Visit – Walked the site of potential school farm and identified invasive species present. September 2024 3 3
Montville Greg Bugbee Staffed the CAES OAIS booth at the CT Boat Show at Mohegan Sun (1/20) 1 12
Montville Greg Bugbee Staffed the CAES Office of Aquatic Invasive Species table at the Connecticut Fishing and Outdoor Show at Mohegan Sun (3/24) 1 12
Morris Greg Bugbee Gave an Invasive Aquatic Plant Workshop to the Bantam Lake Protective Association at the Morris Town Hall (6/29) 56 112
Mystic Lydia Pan Guided tour for the public entitled “Management of Invasive Plants” at the Coogan Farm Nature & Heritage Center, offered in partnership with the Denison Pequotsepos Nature Center. Topics included: Connecticut’s regulatory framework for invasive plants, CIPWG, how to identify and manage common invasive plants in springtime including fig buttercup, mugwort, multiflora rose, Japanese honeysuckle, Japanese barberry, Oriental bittersweet, autumn olive. Handouts included CT invasive plant list, top 10 management calendar and a curated list of Invasives and Native Alternatives Resources (4/13) 20 50
New Canaan Laura Ferrera Invasive plant removal activity: Wrenched out 30 + large Euonymus alatus on private 1/8 acre 4 10
New Canaan Laura Ferrera Invasive plant removal activity: Wrenched out 87 large Euonymus alatus on private 1/4 acre 2 52
New Canaan Laura Ferrera Invasive plant removal activity at Lee Memorial Garden: Wrenched out 5 large Euonymus alatus and a huge Berberis thunbergii in public dog-walking park 6 8
New Haven Tracy L. Blanford Removal of invasive plants and trail work at 16-acre city woodlands park with Park Friends group- Friends of Quarry Park (March through November) 45 90
New London Taegan McMahon Stiltgrass removal by botany class 30 30
New London Anna Fialkoff Stiltgrass removal by summer interns (weekly activity in July & August) 8 128
New London Anna Fialkoff Invasive plant removal by New Heights volunteer group (weekly activity throughout year) 6 480
New London Anna Fialkoff Invasive plant removal by A Behavioral Approach volunteer group (bi-weekly activity September-November) 4 26
New London Anna Fialkoff Invasive plant removal along front wall by A Behavioral Approach volunteer group (2 meetings) 4 24
New Milford Alexandra Thomas Identified invasives: Knotweed and Tree of Heaven (August) 3 10
New Milford Kathleen Nelson Invasive plant management activity: Mile-a-Minute Vine follow up (4 visits) 10 12
Newtown Holly M. Kocet Invasive management activity on both public and private lands, including MAM, Japanese Knotweed, Mugwort, Oriental Bittersweet, Winged Euonymus, Japanese Barberry, Japanese Stiltgrass (June through August) 10 120
Norwich Greg Bugbee Gave an Aquatic Plant Workshop to students at Three Rivers Community College (2/21) 46 184
Norwich Greg Bugbee Gave an invited virtual talk entitled “Connecticut’s Invasive Aquatic Plant Problem” to the Norwich Power Squadron (11/6) 11 22
Norwich Alyssa Siegel-Miles, Sara Tomis Invasive Plant Focus Group with Master Gardeners 10 20
Old Greenwich Diana Klingner Invasive plant management activity: spraying of mugwort in coastal dunes with salt solution (August) 3 12
Old Saybrook Kathy Connolly Cutting of barberry at The Preserve State Forest (1/6) 6 12
Old Saybrook Kathy Connolly Cutting of barberry at The Preserve State Forest (1/13) 11 22
Old Saybrook Kathy Connolly Cutting of barberry at The Preserve State Forest (3/16) 4 8
Old Saybrook Kathy Connolly Cutting of barberry at The Preserve State Forest (3/23) 7 14
Old Saybrook Kathy Connolly Plant Science Day table (8/7) 1 3
Plantsville Kathryn Hanlon Free presentation given at the Southington Public Library entitled “Alien Invaders Part I – Plants and Shrubs in Your Yard: How to ID and get rid of Burning Bush, Japanese Barberry, and Garlic Mustard” (4/30) 15 20
Plantsville Kathryn Hanlon Free presentation at the Southington Public Library with slides, plant examples, and a reference list. Presentation title: “Alien Invaders Part II – Creepers and Climbers in Your Yard: How to identify and work on eliminating knotweed, bittersweet, and mugwort.” (5/14) 15 20
Plantsville Sara Tomis Invasive Plant Focus Group at CNLA 4 8
Plantsville Lauren Kurtz; Sara Tomis CT Nursery and Landscape Association winter meeting sustainable landscapes/invasive species table Jan 2024 200 800
Plantsville Lauren Kurtz; Dustyn Nelson CT Nursery and Landscape Association winter meeting – presentation Jan 2024 – Unveiling the enigma: Understanding invasive plants. 200 400
Plantsville Lauren Kurtz; Sara Tomis CT Grounds Keepers Association winter meeting sustainable landscapes /invasive species table Feb 2024 400 800
Plantsville Lauren Kurtz CT Ag Expo table distributing information about pond IPM and phragmites 10 30
Pomfret Noreene Stehlik Knotweed removal at Abington Social Library (5/23-5/24) 4 12
Pomfret Noreene Stehlik Stakeholder meetings: Discussion of possible options to address knotweed infestation at Abington Social Library (6/19, 6/23) 3 6
Quaker Hill Frederick Charles Shakir Invasive plant management activity: Homeowner with land covered with Japanese Wisteria (10/21) 1 3
Ridgefield Roberta Barbieri Removal of burning bush from Aldrich Park in Ridgefield and attendance at Westchester County, NY annual symposium on invasives (October) 40 150
Ridgefield Roberta Barbieri Removal of invasive species from wetlands at McKeon Farm open space (August) 3 30
Roxbury Kathleen Nelson Invasive plant management activity: Mile-a-Minute Vine follow up (3 visits) 8 12
Salem Mary Ellen Addy Invasive plant management activity, field expedition, guided tour, site visit, and consultation 1 50
Salem Greg Bugbee Presented an invited talk on “Hydrilla in Gardner Lake” to the Gardner Lake Association at the Gardner Lake Volunteer Fire Department in Salem (8/15) 46 92
Salisbury Tom Zetterstrom Invasive plant management activity at Washinee Park (July) 1 3
Salisbury Greg Bugbee Presented talk entitled:” Lake Wononpakook:  2023 Aquatic Plant Survey and Management Options” to the Lake Wononpakook Association at the Salisbury Town Hall (3/16) 26 56
Sharon Tom Zetterstrom Two hands-on invasive workshops at the Sharon Land Trust (March & April) 8 48
Sharon Tom Zetterstrom Cutting and treating of 2000 bittersweet vines at Hamlin Preserve (March-September) 30 240
Sharon Tom Zetterstrom Development of management and restoration plan for Hamlin Conifer Grove (June-August) 1 20
Sharon Tom Zetterstrom Lecture for Sharon Garden Club (March) 26 50
Sharon Kathleen Nelson Preparation of educational handout on porcelain berry 1 30
Shelton Kris Nichols Removal of targeted invasives from Sugar Bush area at Nicholdale Farm property. Invasives needing control were winged euonymus, barberry, Asiatic bittersweet, and multiflora rose. Education on the species and their removal was provided to volunteers on the species (including CIPWG fact sheets) as well as how to place the invasives on existing brush piles to ensure plant death (6/15) 8 27
Shelton Joe Welsh Management of tree of heaven (Ailanthus altissima) encroaching along western border of Nicholdale Farm property including the western border of the main parking area. The “hack and squirt” method was used with good results. Control of lantern flies discovered during treatment to the trees, including follow-up check-ins to observe effectiveness of treatment (July & August) 1 12
Shelton Kris Nichols Mowing of A Crown Tool property at Nicholdale Farm to mitigate Autumn Olive (7/24) 1 4
Shelton Kris Nichols General invasive removal, clearing around trees, stone walls, bridges, along fences and in the Scout area at the Nicholdale Farm property. Invasive species removed included winged euonymus, barberry, multiflora rose, Asiatic bittersweet, porcelain berry or other invasive grape vine species as well as an abundance of poison ivy (May-August) 14 58
Shelton Joe Welsh Management to Japanese Knotweed along main parking area at Nicholdale Farm property. A summer cut followed by monitoring pulling of regrown (July-September) 2 7
Shelton Kris Nichols Invasive plant management activity at the Scout camp area on the Nicholdale parcel. Clippers and buckthorn blasters were used as well as a root wrench and a gas-powered handheld brush cutter. CIPWG invasive sheets for winged euonymus, barberry and Asiatic bittersweet were on hand (11/3) 7 20.5
Sherman Lori Lichtenauer Deer Pond Farm – All Habitat Services managed invasive Japanese stiltgrass via foliar spray April 2024 5 60
Sherman Lori Lichtenauer Deer Pond Farm – All Habitat Services managed invasive mugwort, Canada thistle, Japanese barberry, Black locust, Oriental bittersweet, multiflora rose, and winged euonymus via foliar spray, April 25-26 5 60
Sherman Lori Lichtenauer Deer Pond Farm – All Habitat Services managed invasive Phragmites australis via foliar spray

July 22

5 15
Sherman Lori Lichtenauer Deer Pond Farm – All Habitat Services managed invasive Mugwort, Canada thistle, Japanese barberry, Black locust, Oriental bittersweet, multiflora rose, and winged euonymus, via foliar spray August 26 4 88
Sherman Lori Lichtenauer Deer Pond Farm – All Habitat Services managed invasive Phragmites australis, via foliar spray September 25 4 8
Sherman Lori Lichtenauer Deer Pond Farm – Treat black locust sprouts with cut and paint 2 10
Simsbury Margery Winters Several presentations, workshops on invasive plants and 19 invasive plant removal workdays for the removal of invasive plants on Simsbury Land Trust and Town of Simsbury land.  The Simsbury Land Trust also created and mailed their own invasive plant removal guide (based in part on CIPWG information and information from the Penn State Agricultural extension website and others) to all property owners in Simsbury. This booklet is also being distributed to by the Lower Farmington River and Salmon Brook Wild & Scenic Committee as well as other local groups (April-November) 50 470
Simsbury Rose Hiskes Invasive Plant Walk and Talk. Identification and management techniques for each species were discussed (10/12). 4 8
Simsbury Rose Hiskes Invasive Plant Talk sponsored by Garden Club. Discussion lead by Rose Hiskes, the Connecticut Invasive Plant Working Group and the Connecticut Agricultural Experiment Station (4/23) 30 32
South Windsor Bill Marshall/ South Windsor Invasive Plants Working Group South Windsor Farmers Market. Invasive plants educational booth and discussion with interested individuals; recruiting volunteers for Work Parties. 6/29/24 and 7/27/24 75 20
South Windsor Bill Marshall/ South Windsor Invasive Plants Working Group Earth Day Celebration, South Windsor Heritage Day, South Windsor Apple Fest Celebration. Invasive plants educational booth and discussion with interested individuals; recruiting volunteers for Work Parties. 4/21/24, 9/28/24, 10/5/24 120 30
South Windsor Bill Marshall/ South Windsor Invasive Plants Working Group Invasive plants educational presentations at SW Library and Pollinator Pathways Meeting. 2/9/24, 10/8/24 18 40
South Windsor Bill Marshall/ South Windsor Invasive Plants Working Group (SWIPWG) SWIPWG is a partnership between the Town (Public Works Department, Parks and Recreation Department, and Environmental Planning) and Town residents to manage invasive plants in a 5- acre Town owned wooded Open Space. Activity consisted of Work Parties to remove/manage invasive plants, mentor volunteers in invasive plant ID/management. Two Kiosks were installed (Eagle Scout project) at two entrances to Invasive Plants Education Area. Approx. 35 native plants were planted. Planning underway for 2025 – educational signage along Invasive Plants ID trail and official opening to public. 4/6/24, 5/4/24, 6/1/24, 8/3/24, 9/7/24, 10/5/24, 11/5/24; 12/7/24.

These educational materials were distributed at events and are provided to all new volunteers.

·       CIPWG “Connecticut Invasive Plant Management Calendar”

·       CIPWG “Connecticut ‘s Top Ten Invasive Plants”

·       “Invasive Plants in Your Backyard” booklet published by CT River Coastal Conservation District

60 330
Sprague Krystle Daniels Removal of Japanese barberry, burning bush, bittersweet, autumn olive, Japanese stiltgrass, and multiflora rose on 17 acres of private property (May-November) 1 150
Stafford Springs Rose Hiskes Invasive Plant Talk sponsored by Conservation Commission. Discussion led by Rose Hiskes, The Connecticut Invasive Plant Working Group and The Connecticut Agricultural Experiment Station (4/22) 19 22
Stamford Dianne Farley Removal of multiflora rose, oriental bittersweet, grape, other vines, and phragmites while cleaning up Chestnut Hill Park along the south border wall.  Over 100 feet of wall and land has been cleared and is under tarp for eventual planting (June through September) 3 108
Stamford Dianne Farley Eradication of invasive plants from the southwest side of the stream in Chestnut Hill Park. In the past three years, over 100 x 20 feet have been tarped to prevent growth (May-August) 3 84
Stamford Laura Ferrera Invasive plant removal activity at Mianus River State Park: Wrenched out huge wineberry infestation at entrance of popular local park. 40+ Rubus phoenicolasius root crowns wrenched out, as well as artemisia, porcelainberry, and small multi-crowned Tree of Heaven roots. 5 30
Storrs CIPWG Symposium Attendees and Speakers The twelfth biennial symposium was held in Storrs, CT on October 29, 2024, with 390 people attending. The symposium theme was Real Talk – Making an Impact in Invasive Plant Management.  The all-day event featured regional and local experts as well as citizen volunteers sharing practical solutions for invasive plant management and actions needed to promote native species and improve wildlife habitat. Symposium 2024 handouts, powerpoints, and information are available on the CIPWG website. 390 3420
Storrs Lauren Kurtz UConn Turf field day Invasive Species Workshop – Common invasive plants and management strategies in managed landscapes. July 2024 15 30
Uncasville Lauren Kurtz Fishing and Outdoor Show – hosted table about aquatic invasive species. March 2024. 35 105
Vernon Rose Hiskes Invasive Plant Walk, Talk, Cut. Identification and management techniques for each species were discussed (7/20). 9 20
Vernon Rose Hiskes Invasive Plant Walk and Talk.  Identification and management techniques for each species were discussed. 7 15
Vernon Rose Hiskes Newhoca Park Plant Pulls 3 8.5
Waterbury Greg Bugbee Presented an invited talk on “Invasive Aquatic Plants and Their Management” at a CT DEEP training program at the American Jobs Center in Waterbury (4/24) 26 104
West Hartford Beth Ann Loveland Sennett Management activities associated with a long-term restoration project of West Hartford Garden Club’s long-term restoration project at Spicebush Swamp Park, as well as “walk and talk and cut” parties. CIPWG handouts provided.  Invasive plants targeted were primarily Multiflora Rose, Buckthorn, Japanese Knotweed, Oriental Bittersweet, Mugwort, and Japanese Stiltgrass. 25 889
West Hartford Beth Ann Loveland Sennett Invasive plant removal parties at Wojan’s Woods in West Hartford, a conservancy urban woods, in collaboration with Traprock Ridge Land Conservancy. 25 112
Weston Sarah Hutchison, Lisa Brodlie Weston has logged 352 hours this year including internships, school pulls, administration hours associated with acquiring conservation permits, and the special barberry project at Lachat Town Farm. 20 352
Westport Faith Novella Community Volunteer Day at Earthplace in Westport – 15 volunteers and 3 staff spent 2 hours removed Japanese honeysuckle and Asiatic bittersweet. CIPWG handouts on the two species were provided (9/7) 18 36
Westport Faith Novella Invasive Plant Removal program at Earthplace – main focus was autumn olive, wineberry, and bittersweet (6/27) 5 6
Wilton Joe Bear Invasive Plant Management Activity at Allen’s Meadow- Native Pollinator Meadow:
Continuation of plan, now in its 4th year, of eradicating 3/4 acre of Mugwort and replacing it with a native pollinator meadow of forbs and grasses. This growing season saw the germination of a custom meadow mix I put together using Ernst Seeds and sowed in Nov 2023.  While the process of tarping the Mugwort for 2 years prior seemed to have killed most of the plants, countless hours were spent all growing season long pulling out Mugwort seedlings- e.g. just as my meadow mix saw nice germination, unfortunately so did the 2 decades of Mugwort seeds in the seed bed! 1,000s of seedlings were pulled, and I expect to have to stay on top of this next year too.  The meadow was mowed in late June, July, and August to encourage vegetative preproduction (strong root system).  As many of the annual species (e.g. R. hirta, C. fasciculata) may not have had a chance to drop their seed given the mowing, I will overseed with just these few species in Dec 2025 to put them back into the meadow’s life cycle. Thankfully I was able to log in the many hours I put into the meadow management to my Master Gardener Intern requirements (April-October). I’ve held 4 community volunteer days pulling out these Mugwort seedlings.  See article: https://goodmorningwilton.com/mugwort-eradication-pollinator-allens-meadow-letter-to-editor
40 120
Windsor Locks Rose Hiskes Invasive Plant Talk and Cut 7 15
Woodbridge Alison Beres-Nork Information table with CIPWG handouts and samples of invasive plants at the Woodbridge Earth Day event. Stayed on site to answer questions about ID, removal, etc. (April) 500 130
Woodstock Valley Noreene Stehlik Preparation of 3 articles on invasives (winged euonymus, Asian bittersweet, porcelainberry) for Quiet Corner Garden Club (Northeastern Connecticut) monthly newsletter (for April, May, October), with citation to CIPWG invasive plant listing 1 9
Connecticut Vickie Wallace, Alyssa Siegel-Miles, Lauren Kurtz, Sara Tomis UConn Extension Sustainable Landscapes Program is developing an Invasive Plant Certificate Program to equip stakeholder groups of varied experiential backgrounds with the information needed to evaluate, manage, and mitigate populations of invasive species in Connecticut. This program will consist of eight asynchronous modules. The audience for this program will include land managers, conservation commission members, green industry professionals, municipal staff, advanced volunteers and homeowners interested in learning more about invasive plants and effective management strategies. Planning, curriculum development, speaker recruitment, filming, editing, and module development were executed this year. 10 150
Connecticut Vickie Wallace UConn Master Gardener Course. Instructor. Developed new modules on turfgrass with coverage of invasive plants management. Delivered in-person lectures. Vernon, March 23, 2024 (65 in attendance); New Haven, March 21, 2024 (44 in attendance); Torrington, March 20, 2024 (25 in attendance); Norwich, March 12, 2024 (48 in attendance); Stamford, March 11, 2024. (29 in attendance). 212 2170
Connecticut Vickie Wallace 2024 ECSU SustainableCT Program, Reviewer. Review invasive plant submissions. 1 16
Virtual Vickie Wallace UConn Fundamentals of Home Gardening Master Gardener Course. Instructor. Developed module on turfgrass with coverage of invasive plants management for asynchronous class. 14 in attendance. 15 115
Virtual Kathy Connolly Webinar presentation sponsored by the American Horticultural Society entitled “3 Ways to Fight Invasive Plants” (1/10) 45 48
Virtual Greg Bugbee Presented update on “CAES OAIS and Hydrilla in the CT River” at a virtual meeting sponsored by the Connecticut River Conservancy (1/29) 26 52
Virtual Greg Bugbee Gave an update on OAIS efforts to address hydrilla in the CT River at the quarterly CT DEEP Hydrilla Task Force meeting (4/29) 26 26
Virtual Greg Bugbee Gave an update on OAIS efforts to address hydrilla in the CT River at the quarterly CT River Conservancy DEEP Hydrilla Task Force meeting (4/29) 26 26
Virtual Greg Bugbee Spoke at a United States Army Corps of Engineers “Hydrilla in the Connecticut River Demonstration Project” information seminar on CAES/OAIS discovery and surveillance on the problematic invasive plant (5/29) 26 52
Virtual Greg Bugbee Gave an update on “Hydrilla in the Connecticut River and its Spread to Lakes” at a virtual meeting of the Connecticut River Conservancy (8/13) 26 52
Virtual Greg Bugbee Met via video conference with the United States Army Corps of Engineers Hydrilla Research and Demonstration Education & Outreach Working Group to discuss the CT River Hydrilla Project (8/19, 8/22) 16 32
Virtual Greg Bugbee Presented an invited talk entitled “The March of Hydrilla in Connecticut” at the 2024 Virtual CT Lake Symposia hosted by Western Connecticut State University (9/23) 101 202
Virtual Greg Bugbee Participated (virtually) in the USACE/ MADCR Hydrilla Demo Project Expansion Planning Meeting (10/3) 16 32
Virtual Greg Bugbee Participated (virtually) in the CT DEEP Aquatic Invasive Species Task Force quarterly meeting (10/7) 16 32
Virtual Greg Bugbee Participated (virtually) in the CT Invasive Plant Working Group Steering Committee (10/10) 21 21
Virtual Greg Bugbee Participated (virtually) in the Hamburg Cove Hydrilla Management Group (October 15) (15 participants) (2 hours). 15 30
Virtual Greg Bugbee Gave an invited virtual talk entitled “Hydrilla in the Connecticut River – The Case for United States Army Corps of Engineers Assistance” to the Massachusetts Resource Agency Workshop (10/24) 26 52
Virtual Rose Hiskes, Vickie Wallace, Emmett Varicchio CIPWG Symposium Planning Meetings 15 160
Virtual Rose Hiskes, Vickie Wallace, Emmett Varicchio CIPWG Steering Committee Meeting. Discussed report from CIPWG Invasive Plant Review Subcommittee and voted on proposal to bring to Invasive Plants Council. 15 60
Virtual Alyssa Siegel-Miles, Sara Tomis, Lauren Kurtz, Pete Picone, Rose Hiskes, Lisa Brodlie Invasive Plant Focus Group with CIPWG Steering Committee 15 30
Virtual Vickie Wallace, Alyssa Siegel-Miles, Lauren Kurtz, Pete Picone, Bryan Connolly, Josh Tracy, Dave Laiuppa CIPWG Invasive Plant Review Subcommittee 7 70
Virtual Lauren Kurtz Master Gardener Hot Topics presentation July 2024 – Newly listed invasive plants and native alternatives 547 547
Virtual Lisa Brodlie CIPWG info line inquiries: Logged in to a database with all reports written in to the CIPWG info line reporting invasives, answered each inquiry and assisted all in finding out to whom these sitings are to be reported according to each town’s employees pertaining to invasive plants. Referred specific inquiries and issues to CIPWG specialists about certain invasive plants for follow up and/or assistance in combating the issues reported. Recommended speakers for some of the issues presented and recommended companies who can deal with massive invasive problems (May-December) 1 50
TOTAL DIRECT: 6,067 20,913
Out of State Activity:
Location Educator/ Leader/ Reporter Program Title/Outreach Activity # Partici-pants or Attendees # Hours Contri-buted
Agawam, MA Greg Bugbee Toured the northernmost Connecticut River hydrilla infestation in Agawam, MA with officials from the United States Army Corps of Engineers and the Massachusetts Department of Conservation and Recreation (9/23) 16 32
Stockbridge, MA Tom Zetterstrom Lecture for Laurel Hill Association entitled “Saving Trees from Bittersweet” (January) 50 100
Turners Falls, MA Victoria Wallace “Bee” Pollinator Mindful: Lawn Care Best Practices to Support Pollinator Health with coverage of invasive plants management. Atlantic Golf and Turf Educational Workshop. February 21, 2024. 150 in attendance. 150 170
Portsmouth, NH Greg Bugbee Gave an invited talk entitled “Hydrilla in the Connecticut River Update” at the annual meeting of the Northeast Aquatic Nuisance Species Panel at the New Hampshire Department of Environmental Conservation Headquarters in Portsmouth, New Hampshire (10/21, 45 attendees). Elected Co-Chair of the Panel (25 participants) (2 hours). 71 98
TOTAL (OUT-OF-STATE): 287 400

Indirect Participation (e.g., Articles, Interviews, Podcasts)

Location Educator/ Author/ Reporter Program Title/Outreach Activity # Participants
Connecticut Dave Peck News broadcast by NBC Connecticut. CT adds to invasive plants species list for first time in several years. May 21, 2024. https://www.nbcconnecticut.com/news/local/invasive-plants-species-list-connecticut/3295380/#:~:text=New%20to%20the%20list%20include,up%20for%20NBC%20Connecticut%20newsletters 1000
Connecticut Sara Tomis, Lauren Kurtz, Alyssa Siegel-Miles, Victoria Wallace Journal article: Tomis, S. M., L. E. Kurtz, A. J. Siegel-Miles, and V. Wallace. 2024. Determining Need: Opportunities for Connecticut Invasive Plant Programming. HortTechnology, 34(4), p. 485–492. https://doi.org/10.21273/HORTTECH05467-24 100
Connecticut Lauren Kurtz, Alyssa Siegel-Miles, Victoria Wallace University of Connecticut invasive plant publication: Kurtz, L., A. Siegel-Miles, and V. Wallace. 2024. Invasive Species Profile: Hydrilla verticillata. Univ. of Connecticut, Storrs, CT. 4 pp. https://doi.org/10.61899/ucext.v1.061.2024 200
Connecticut Ruth Epstein Article in Republican America. In Your Corner: State agency honors Canaan man’s love of trees. November 12, 2024. https://www.rep-am.com/localnews/2024/11/12/in-your-corner-state-agency-honors-canaan-mans-love-of-trees/ 100
Connecticut Gabriel Duffany Article in UConn Daily Campus. UConn hosts 12th bi-annual invasive plant summit. October 30, 2024. https://dailycampus.com/2024/10/30/uconn-hosts-12th-bi-annual-invasive-plant-summit/ 200
Connecticut Alec Linden Article in Lakeville Journal. Tom Zetterstrom receives award for work managing invasive plant species. November 6, 2024. https://lakevillejournal.com/tom-zetterstrom-receives-award-for-work-managing-invasive-plant-species 100
Connecticut Kathy Connolly Article in The Day. Your Turn: Invasive-plant symposium gets in the weeds, literally. October 8, 2024. https://www.theday.com/columns/20241008/your-turn-invasive-plant-symposium-gets-in-the-weeds-literally/ 500
Connecticut Jennifer Ahrens Connecticut Public Radio. How to stay ahead in the battle against invasive plants in your yard. August 26, 2024. https://www.ctpublic.org/news/2024-08-26/get-rid-invasive-plants-backyard-lawn-care-connecticut 500
Connecticut Vincent Gabrielle Article in CT Insider. Smelly Bradford pear tree among CT’s latest invasive plant. Here’s what else was added to the list. May 21, 2024. https://www.ctinsider.com/news/article/ct-gov-lamont-invasive-plant-list-smelly-pear-tree-19461468.php. 500
Connecticut Stephen Underwood Article in Hartford Courant. Invasive plants cause natural havoc across CT. A UConn grad is fighting it a property at a time. December 10, 2024. https://www.courant.com/2024/12/10/invasive-plants-are-spreading-throughout-ct-one-uconn-grad-is-fighting-back-one-property-at-a-time/?share=eant1pt4osp1hvhtaogo. 500
Connecticut Anne Rowlands Article in Connecticut Gardener, May/June 2024: Vol 30 No 2. Invasive Princess Tree/Paulownia

tomentosa. https://www.conngardener.com/invasive-princess-tree/

3,000
Connecticut Anne Rowlands Article in Connecticut Gardener, Jul/Aug 24: Vol 30 No 3.
Invasive Japanese Angelica Tree / Aralia elata
 https://www.conngardener.com/invasive-japanese-angelica-tree/
3,000
Connecticut Anne Rowlands Article in Connecticut Gardener, Sep/Oct 2024: Vol 30 No 4. Official List of Invasive Plants Grows (about new additions to CT’s IP list).
https://www.conngardener.com/official-list-of-invasive-plants-grows/
3,000
Connecticut Anne Rowlands Article in Connecticut Gardener, Winter 2024-25: Vol 30, No 5. Invasive Quackgrass / Elymus repens. https://www.conngardener.com/invasive-quackgrass/ 3,000
Connecticut Greg Bugbee Interviewed by Ed Mahoney of the Hartford Courant on hydrilla in the Connecticut River (October 3) resulting in a frontpage article October 7  https://www.courant.com/2024/10/07/scientists-put-herbicide-in-the-ct-river-why-its-like-conquering-a-monster-in-the-waterway 1000
Connecticut Greg Bugbee Interviewed by Brian Murphy of the United States Army Corps of Engineers Press Corps on hydrilla in the Connecticut River (8/13) 50
Connecticut Greg Bugbee Interviewed by Debra Aleksinas of the Lakeville Journal on hydrilla in Connecticut (9/9) https://lakevillejournal.com/connecticut-hydrilla-treatment 500
Connecticut CIPWG, Lauren Kurtz, Alyssa Siegel-Miles Started a new CIPWG Facebook page. As of December 2024, the page had 163 followers. 13,275 people have been reached, 12,204 views since September 2024 13,275
Connecticut Alec Linden/ Tom Zetterstrom Article in Lakeville Journal. HVRHS students shown the danger of invasives – and how to fight them. November 26, 2024.

https://lakevillejournal.com/hvrhs-students-shown-the-danger-of-invasives-and-how-to-fight-them

1000
Connecticut Abby Weiss, Victoria Wallace V. Wallace, Interviewee. What to know about invasive Japanese knotweed threatening native plants in Connecticut. Abby Weiss. CT Insider. Sep 20, 2024. https://www.ctinsider.com/news/article/japanese-knotweed-ct-invasive-plant-19770759.php 1000
TOTAL INDIRECT: 32,525

Submitted by Victoria Wallace (UConn Extension, CIPWG co-chair), with contributions from Rose Hiskes (CIPWG co-chair) and many other CIPWG members included above. December 2024