The Hydrilla Menace: Twin Lakes group buoyed by DEEP’s assault on invasive hydrilla in 2025

A detail of a whorl of hydrilla pulled from the shallow waters at O’Hara’s Landing Marina in fall of 2024.
Photo by Debra A. Aleksinas
A detail of a whorl of hydrilla pulled from the shallow waters at O’Hara’s Landing Marina in fall of 2024.
SALISBURY — The Twin Lakes Association is taking an earlier and more aggressive approach to fighting the spread of invasive hydrilla in East Twin Lake by dosing the whole northeast bay, from May through October, with low-level herbicide treatments instead of spot treatments.
The goal, said Russ Conklin, the TLA’s vice president of lake management, is to sustain herbicide concentration over the 2025 growing season.
That plan of attack will continue over a period of 60 to 90 days beginning May 21, Conklin explained during the association’s April 30 membership meeting via Zoom which drew 60 attendees.
TLA officials were encouraged by the chance to stop the spread and hopefully destroy the thick mats of the unyielding invasive plant hydrilla verticillata, referred to as the Connecticut River variant, after two years of chasing new growth around the lake’s north bay.
Dense patches were first discovered in the summer of 2023 in shallow waters around O’Hara’s Landing Marina and the nearby state boat launch and the plant has since migrated further into East Twin, following a pattern of boat traffic.
Past treatment efforts were hampered by delayed permits from the state Department of Energy and Environmental Protection to treat the hydrilla with herbicides in an area where a rare plant had been identified.
This year, the TLA was granted an exception by DEEP, said Conklin, as any protected plant species in the path of hydrilla would likely not survive anyway.
“It is not dead now, but it is going to be if we don’t do something about the hydrilla.”
“This is a big year for us,” Conklin said. “Hydrilla is a real threat to the lake, and we did treat it this past year, but the permits only applied to the plant, so we spot treated it … and were always chasing it.”
The course of action this year, he said, is to treat the entire northeast bay with the herbicide Sonar in both liquid and crystal form at a very low levels so that the herbicide’s contact time with hydrilla will be extended for a longer period over 60 to 90 days.
“We know from past experience that it is much easier to kill the plant when it’s small,” Conklin explained. The goal, he said, is to attack the stringy, green weed before August when it crowns and splits into numerous growing points that are capable of growing at the rate of an inch a day.
During the hour-long meeting, discussion also focused on a pilot program for enhanced cyanobacteria monitoring at Twin Lakes to be headed by TLA director Jessica Swartz, a resident of West Twin Lake and biotech executive with Pfizer.
“It’s very visibly challenging to identify cyanobacteria blooms,” Swartz explained, as it can easily be confused with pollen on the surface of the water, dead vegetation or different types of algae.
Cyanobacteria, also known as blue-green algae, are natural, important phytoplankton in lake ecosystems. Dense blooms, which release toxins, occur when there is an abundance of sunlight, elevated phosphorus levels and warm temperatures.
Given the current escalation in overly-nutrient rich waterbodies and rising temperatures due to global climate change, the frequency of cyanobacteria blooms is increasing, said Swartz, and Twin Lakes has occasionally experienced localized blooms.
As a result, the association will be implementing a pilot testing program with greater frequency and at more locations than currently conducted by the TLA’s limnologist, George Knoecklein. The goal of the pilot program is to work out the process of collecting reliable data over time that helps inform whether cyanobacteria blooms are occurring, where they are most frequently found, and assess the level of risk.
Sample test kits have been ordered for five or six testing sites across East and West Twin, including at the private Salisbury School.
TLA president Grant Bogle invited Swartz to give an update at the association’s upcoming June 14 membership meeting at Camp Isola Bella.
Despite rising lake management costs projected at $500,000 this year, Bogle reported that the TLA is in strong shape financially heading into the 2025 season, as it received another $75,000 grant from DEEP and $25,000 from the Bates Foundation to support the Watershed Study.
Also, the town of Salisbury has earmarked $75,000 for Twin Lakes this season, said Bogle, and the TLA membership has “responded generously” contributing more than $300,000 since August 2024 when the group started its 2025 fundraising campaign.
Bogle also encouraged members to attend the May 12 public meeting of the Salisbury Inland Wetlands & Watercourses Commission, which is expected to address proposed changes to the Upland Review Area encompassing the town’s lakes.
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Students dressed in neon lined the soccer field for senior night under the lights on Thursday, Oct. 16. The game against Lakeview was the last in a series of competitions Thursday night in celebration of Homecoming 2025.
As homecoming week reaches its end and fall sports finish out the season, an air of school spirit and student participation seems to be on the rise across Housatonic Valley Regional High School.
But what can be attributed to this sudden peak of student interest? That’s largely due to SGA. Also known as the Student Government Association, SGA has dedicated itself to creating events to bring the entire student body together. This year, they decided to change some traditions.
Spirit week from Oct. 14-17 was unlike those of the previous years. From wearing Housatonic merch to Boomer vs Baby day, this year’s spirit week held a little friendly competition to see which grade could participate the most.
“I think that students are bored of the same old activities and events, so it’s good to switch things up even slightly to incentivize interest within students,” said SGA president and senior Mollie Ford. “Plus the point system is super beneficial because it gives students a reason to participate.”
The school spirit sentiment can be seen outside of just the school. Senior Simon Markow is known for his photography throughout the community, and has dedicated time to help Housy sports teams’ social media posts.
“Since I’ve started photography, I think school attendance [at sports games] has gone up,” Markow said. “I feel this year, students will be more aware of games and are more likely to be at the games.”
Whether it’s a pink-out volleyball game or an under the lights soccer match, it’s likely you’ll see some familiar faces.
Social media has played a large role in this over the years. Almost every student organization at Housatonic has an Instagram account, and it’s helped reach students more efficiently than a poster or email would.
“The increase of social media use, with the help from me but as well as the teams themselves has definitely increased student interest,” Markow said. “With Housy teams posting more about their upcoming games, and my help showing the cool goals, spikes, or touchdowns, it’s enlightened students to watch the games themselves.”
In a small school, promoting pride has proven to be a challenge. But this year’s senior class has made some adjustments in the hopes to change that.
“The SGA community has spent the last few years really focusing on student participation, because we think it’s the students who contribute to a better climate,” Ford said. While Housatonic’s student body may be small in size, it seems they certainly aren’t small in spirit.
The weekend of Homecoming at HVRHS was packed with events including rival games under the lights, senior night, and a new take on Homecoming that moves it outside — and it wouldn’t have been possible without the students of Housatonic.
Orchestrating was no easy feat, especially considering much of the work was left up to the students.
Historically, HVRHS has hosted night games for boys and girls soccer and the GNH football team, but when members of the soccer team asked the athletic director, Anne MacNeil, she left it up to the students to acquire the lights necessary to host a night game.
“I said, ‘Hey, if you can find the lights, we can make it happen,’” MacNeil said. “I usually take control of it, but I really wanted to have the teams have the initiative and take responsibility for it. I think by having them do that, they have a lot more invested in it.”
Finding lights for the game was a challenge in and of itself, and it fell on the students, parents, and alumni to come together if there was to be a night game at all.
Luckily for the players, Patricia and Dino Labbadia, parents of senior Anthony Labaddia, were able to amass the support of the community and get all the necessary equipment donated for the night game.
“We’re fortunate with our communities. Our parents know people in communities and they were able to ask… [and] find the resources,” MacNeil said. “We’ve got a great senior group and senior parent group who have really taken charge … and really made the whole season possible.”
In the end, the night came together spectacularly, and the senior ceremonies, rivalry games, and nighttime fixtures made for a memorable night on the day before Homecoming.
The action began at 4 p.m. Thursday, when the JV Girls Volleyball team played rivals Lakeview High School at home.
At 4:30, the middle school boys soccer team as well as the cross country team faced Northwestern at Housatonic’s lower field and cross country course respectively. Also at 4:30, the JV boys soccer team took on rival Lakeview at Housatonic’s upper field.
At 5:15, the girls varsity volleyball team honored their seniors at Housatonic’s Senior Night ceremony, including captains Katie Crane and Victoria Brooks, before an intense match against Lakeview.
At 6:15, the boys varsity soccer team honored their seniors, including captains Everet Belancik and Abram Kirshner, before kicking off under the lights at Housatonic’s upper field against the Bobcats.
Friday night changes
Typically, Homecoming is hosted in the cafeteria with a DJ and the entire room open as a dance floor. Dancing is the main event, with a small photo op stationed next to one of the exits.
The typical formal dance filled with LED lights and glitter looked a bit different this year. For the HVRHS 2025 Homecoming, the activities all took place outside. There was a large bonfire for students to hang around, a tented area perfect for dancing, and lawn games to play.
The inspiration for this change comes from the Homecoming hosted during the COVID-19 social distancing restrictions put into place at the time. Senior class President Madison Graney said “Other years passed, graduating classes really enjoyed it and we wanted to give it a try.”
Although the theme of Homecoming remains the same, new tasks came in preparation for the event. Including the Bonfire “adds a whole new component,” Graney said. “[We] have to contact the fire department to ensure that the bonfire is being contained.” Hosting the dance outside also demanded “more preparation the day before … set up the tents and make sure it’s a safe and fun space for everyone to enjoy.”
Opinions about Homecoming’s new look vary amongst the student body, with some excited for change and others comfortable with the familiarity of an inside dance. Alexa Meach, an HVRHS senior, expressed that “Everyone that I’ve talked to’s plan is to get dressed up, take photos, and then change into more comfortable clothes because it’s going to be freezing. I feel like we could have had a different event for the bonfire. I think they could have been two separate events.”
Graney said the change is “A really great way to change up the tradition ... [and] another good way to get to know your peers and your teachers and interact with the student body all at once.”
As the chilly breeze settles in, Halloween approaches and the community yearns for spooky festivities — HVRHS has answered that calling. An event held annually for the past eight years, the HVRHS haunted house has returned.
The event is organized by the current senior and junior year classes — 2026 and 2027 respectively — and held to raise money that goes toward the junior and senior class’s activities such as senior week, prom, the senior class trip, and more.
The haunted house is a significant event for HVRHS students, with the Class of 2026’s Vice President Richie Crane saying it is “actually one of our bigger fundraising events.” The profits raised by the classes are split based on how much either class participates, as Crane explained: “We split evenly between the juniors and the seniors, so if the juniors help as much as the seniors then we split the profit with them.” The profits shared between the classes is typically “a couple thousand dollars,” said Anne MacNeil, HVRHS’s sports director and one of the chaperones at the first haunted house.
In regards to planning such a large event, there are “several meetings that first start off with getting a theme … then finding a leader for each section … and then recruiting the people to participate.” MacNeil said. Costs going into planning the event are minimal, as they try to reuse as much materials as possible. If there are materials that need to be purchased, the cost is covered from the profits made at the end of the event, Crane said.
Working at the HVRHS haunted house provides students with an invaluable experience where they learn leadership skills, organizational skills, and teamwork. During the planning process, some students volunteer for leadership roles, where they are in charge of a designated section of the school and the people within that section. As a section leader, the student is in charge of setting up props, managing their area, and ensuring the people in their section are on task. Leaders dedicate “almost 12 hours of [their] day to a section of Housy” said Crane, giving the students a great opportunity to practice leadership skills.
The HVRHS haunted house is a holiday tradition that brings fun, community, and opportunities to the high school. MacNeil finds it to be “a lot of fun for the students to put on and a great thing for the community to enjoy.” Come support the Class of 2026 and 2027 and see the HVRHS haunted house for yourself on Nov. 1, 2025.