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Glide Through Winter on State Park Ski Trails

“Can you imagine anything freer and more exciting than when you, swiftly as a bird, zoom down the wood-clad hillsides while country air and spruce twigs whiz by your cheeks and eyes; brain and muscles tense, ready to avoid any unknown obstacle which any moment might be thrown in your path? You are one with your skis and nature. This is something that develops not only the body but the soul as well, and it has a deeper meaning for a people than most of us perceive.”

Fridtjof Nansen – Norwegian explorer, scientist, humanitarian and advocate for cross-country skiing, 1890

The use of skis to cross winter terrain dates back millennia, with the oldest-known image of a person on skis carved about 5,000 years ago into the rock of a Norwegian island.

When winter graces the state with snow, State Parks are a great place to enjoy cross-country skiing, with many miles of ski trails for all abilities, from beginner to expert across 104 state parks and eight historic sites spanning the state.

Known in shorthand as XC (or also as Nordic) skiing, this family-friendly sport is a full-body, low-impact cardio workout as well as a wonderful way to get outdoors during winter to see how beautiful the season can be. Skiing is quiet as well, so skiers often have a chance to spot wildlife (and also get a close look at its tracks) that has not been scared off by their approach.

A 1938 poster by the Works Progress Administration promotes cross-country skiing in New York State. (Photo Credit-Wikipedia Commons)

After a promising December start for XC skiing, this season has suffered from a dearth of snow. Perhaps a snowstorm or two is still to come before spring, or if not, this list can be held until the start of next season. Always call ahead to check on snow conditions.

This online map from the National Oceanic and Atmospheric Administration also is a handy tool for getting a picture of snow cover across the state when planning a ski trip.

Either way, to help decide where to go in State Parks when conditions allow, here are some staff favorites. Check each park’s website for a map of their trails:

Allegany Region

With 24 miles of trails, the Art Roscoe Cross Country Ski Area at Allegany State Park in Salamanca, Cattaraugus County, offers some of best groomed skiing in western New York. Novices can try the 3.5-mile Christian Hollow Trail, a loop with gentle grades, or the multi-use, 3.5-mile Red House Bike Path.

Intermediate skiers can try the 3.3-mile Patterson Trail, which is a former rail bed. There are parking areas at both ends of the gently sloping trail, so a shuttle trip can be done by leaving cars at both ends.

Other more adventurous skiers can tackle the Ridge Trail for a 7.7- mile trek geared to intermediate to advanced skiers.

Ski equipment rentals are available at the park’s gift shop at the Red House Administration Building. Trail reports can be found online here.

Finger Lakes Region

The extensive trail network at Harriet Hollister Spencer State Recreation Area in Springwater, Livingston County, has grooming and is about an hour’s drive south of Rochester. Be prepared to share some of the trails with fat tire bikers on occasion.

A golf course can be a great place for novices to learn and practice, since such terrain is open, free of obstructions and tends not to be very steep. Going doing hill as a beginner? Remember to hold those skis in a “V” shape to control your downhill speed as you test out the friendly terrain at  Soaring Eagles Golf Course at Mark Twain State Park in Horseheads, Chemung County.

Central Region

There are 12 miles of trails at Selkirk Shores State Park in Pulaski, Oswego County. A staff favorite is a beginner/intermediate three-mile loop that incorporates the Front Pond Trail, Pine Grove Trail, a section of the 52C snowmobile trail, and Red Fox Trail, before returning to the Pine Grove Trail

Verona Beach State Park, in Verona Beach, Onedia County, offers miles of trails where they might encounter wildlife like white tailed deer, squirrels, foxes, and more. The two-mile Hog’s Back Trail loop follows a natural rise along Verona Beach’s massive swamp. Keep your eyes open at the overlooks for a potential glimpse of the nest of a mated pair of bald eagles.

There are about 15 miles of trails at Gilbert Lake State Park in Laurens, Otsego County. The mile-long trail around the namesake lake is periodically groomed, as is the two-mile Ice Pond Trail to the Twin Fawns Lake Trail.

Genesee Region

In Wyoming County, head for Letchworth State Park in Castile, and its Humphrey Nature Center and the Winter Recreation Area at Trailside Lodge. Here, there are three beginner trails, each about 1.5 miles long.

The park contains seven different parking areas to access about 15 miles of (usually ungroomed) trails. Glide through old-growth forest on the Gravel Loop and the Bishop Woods Loop. For great views of the spectacular Great Bend Gorge, check out the Chestnut Lawn Loop.

Long Island Region

There are two ungroomed trails at the Caleb Smith State Park Preserve in Smithtown, Suffolk County _ the 1.5-mile beginner Green Trail that goes through woods, fields and wetlands, and the 1-mile Orange Trail that offers view of Willow Pond.

At the Connetquot River State Park Preserve in Oakdale, Suffolk County, there are many miles of marked hiking trails that can be skied. There is no grooming, and trails range from one to eight miles in length. The preserve includes an historic former sportsmen’s club and a newly-restored 18th century gristmill.

About six miles of ungroomed trails, ranging from intermediate to advance, are found at Sunken Meadow State Park in Kings Park, Suffolk County. Take the Field 4 Trail to ski through woods before reaching overlooks for Sunken Meadow Creek and Long Island Sound. No skiing is allowed on the golf course.

Niagara Region

At Knox Farm State Park in East Aurora, Erie County, explore the Outer Loop Trail that begins at the Red Barn Parking Lot. A 2.7-mile trail suitable for beginners, it meanders through open pastures and fields, with some short legs through forests and views of farmlands and valleys.

Explore trails at Evangola State Park in Irving, Chautauqua County, to capture views of Lake Erie. The trail network covers about five miles, with the Rim Trail running along the edge of the lake.

Saratoga/Capital Region

At Mine Kill State Park in North Blenheim, Schoharie County, start at the park office for the moderate, three-mile Long Path/Bluebird Trail Loop, which offers sweeping views of the Schoharie Valley and the Blenheim-Gilboa Reservoir. Snowshoes and a small assortment of XC skis are free to borrow from the Park Office with a small deposit.

The moderate/intermediate Shaver Pond Trail at Grafton Lakes State Park in Grafton, Rensselaer County is a two-mile loop around the pond, where you can often see signs of beaver activity. The trail has some roots and rocks, so be mindful of snow cover. The park office rents snowshoes, but not skis.

Skiers have been going to Thacher State Park in Voorheesville, Albany County, for years because of its extensive trail network. Try out the lesser-used North Zone of the park, and its Fred Schroeder Memorial Trail, a three-mile intermediate loop through fields and forests. Use the Carrick Road parking area.

Beginners can practice on groomed trails that run for a total of three miles through the camping loops and around the lake at Moreau Lake State Park in Moreau, Saratoga County. There is skiing on ungroomed trails through the rest of the park.

Taconic Region

While there are no marked or groomed trails for skiing at James Baird State Park in Pleasant Valley, Dutchess County, the park’s golf course and many small, undulating hills there are a great place for beginners to practice climbing, turning, slowing and (maybe a little) falling.

Skiers could spend days touring the 25 miles of carriage roads at Rockefeller State Park Preserve in Pleasantville, Westchester County. Some favorites are the beginners’ 1.15-mile Brothers Path/Swan Lake Carriage Road, with views of the lake; the Thirteen Bridges/Gory Brook Carriage Roads, which along 2.5 miles of intermediate terrain offer view of the Pocantico River and waterfalls; and the intermediate Rockwood Hall Middle, Lower and Foundation Loop Carriage Roads, that go past the Hudson River.

There are 12 miles of trails at Fahnestock Winter Park in Carmel, Putnam County. Equipment rentals are available at the lodge, which also marks the start of the popular Lake Trail. Weather permitting, trails are also groomed on the lake. The trail will take you by a beaver lodge, over the dam built by the Civil Conservation Corps during the Great Depression, and past many small islands.

Cross-country skiing at Old Croton Aqueduct State Historic Park in Dobbs Ferry, Westchester County can be as near as one’s own backyard, as most of the ungroomed 26-mile trail is bordered by homes.  As the park is level, the area is great for those who are new to the sport. 

The Aqueduct is crossed by many streets, and the best cross-country skiing is found in the sections with the fewest road crossings.  Top on the list is the section from Gory Brook Road in Sleepy Hollow to Country Club Lane in Scarborough, about two and a half miles of level trail through the woods.  This section connects to Rockefeller State Park Preserve.   Those who like hills should enter Rockefeller Preserve just north of the Weir chamber and follow the Peggy’s Way trail south for some gentle hills before returning to the Aqueduct.

Another popular area is at the northernmost section by the Croton Dam.  Here the trail clings to the sides of a steep gorge through which runs the Croton River.  The Gorge is a park of its own, operated by the Department of Environmental Conservation and called the Croton Unique Area.  Only two lightly-traveled roads cross the 2.5 miles of wooded Aqueduct trail as it heads south to Croton.

Curiously the most densely-populated area through which the trail runs also features a fine area for skiing.  This section, likewise of about 2.5 miles, has two road crossings, but almost all of it runs through the woods, with unparalleled winter views of the Hudson River and Palisades. 

Palisades Region

There are stunning clifftop views from trails at Minnewaska State Park Preserve in Kerhonkson, Ulster County. Being free of rocks, roots and other obstructions, the 16-mile network of carriage trails are wide and “skiable” even with only a few inches of snow.

Thousand Island Region

At Robert Moses State Park in Massena, St. Lawrence County, there are more than five miles of trails through the woods and along the St. Lawrence River in  NY. The Nicandri Nature Center offers ski and snowshoe loans for all ages as well as ski instruction.

In the western Adirondacks, Higley Flow State Park in Colton, St. Lawrence County, has the popular 1.3-mile Overlook Trail that passes through a pine and spruce forest.  This trail connects with the Backcountry Trail (1.9 miles) and the Warm Brook trail (1.6 miles) for those wishing to challenge themselves further.

This is just a sampling of the ski trails at State Parks. So, when snow is on the ground, grab your skis, and get out there!


Cover Photo: Skiers at Saratoga Spa State Park. All photos by State Parks.

By Brian Nearing, Deputy Public Information Officer for NYS Parks


Read this history of cross-country skiing in the Adirondacks.

Efforts to Control Invasive Species in Parks Gain a Four-Footed Team Member

One sniff at a time, an energetic Labrador retriever named Dia is changing the way we combat invasive species in New York State Parks.

Along with her handler Joshua Beese, this invasives-fighting team from the nonprofit New York-New Jersey Trail Conference is on the hunt for Scotch broom, a threat to the native ecosystems in Bear Mountain and Harriman state parks in the Lower Hudson Valley.

Dia uses her powerful sense of smell to help find small and sparsely distributed invasive species that might be missed by human searchers. Since November 2018, her incredible nose has been specially trained to sniff out the invasive plant Scotch broom.

Joshua Beese with Dia. Photo by nynjtc.org

Scotch broom (Cytisus scoparius)is one of the most destructive invasives on the Pacific Coast, where it has had costly implications for agricultural industries. When it began showing up in New York’s parks, land managers became concerned. Scotch broom forms dense clusters that can displace native plant species and reduce biodiversity that is essential for a healthy ecosystem.

The Lower Hudson Partnership for Regional Invasive Species Management (LHPRISM), which works to minimize the harm caused by invasives, ranks Scotch broom as a tier 2 priority invasive species. That means it is present in such low numbers in the Lower Hudson Valley that with proper action it could be completely eradicated from the area before the population becomes established.

Scotch broom plant in flower on May 2015 at Harriman State Park. Photo by Shelby Timm, nynjtc.org.

The New York State Parks Invasive Species Strike Team and the Trail Conference’s Invasives Strike Force (ISF) Crew of AmeriCorps members, volunteers, and interns have collaborated over the past several years in a bid to eradicate Scotch broom in the region. The ISF Crew has been finding and removing Scotch broom in state parks since 2014, when 37 separate populations were recorded at Bear Mountain and Harriman.

A Scotch broom infestation at Harriman State Park in 2014. Photo by Jennifer Breen, nynjtc.org
After the Scotch broom removal . Photo by Jennifer Breen, nynjtc.org

While a few locations no longer have any plants, other locations are harder to manage. It becomes challenging to find the few remaining individuals among all the other vegetation, which means this destructive plant could still propagate. That’s where Dia comes in!

“Dia first comes into the field with her nose up, smelling what’s in the air, working to detect the Scotch broom scent,” explains handler Beese. “She’s using what are called scent cones; she works her way into a cone and uses that cone to help her narrow down the source.”

Once in a cone, she will search until she gets to the source and put her nose to the ground to sniff out smaller plants that may be tiny and low to the ground. She alerts Beese that she’s found the species by standing or sitting. “The most important thing is that she’s committed to an area where she’s detected the plant until I come and reward her,” Beese says. “Then we can mark it and remove it.”

Dia’s reward: Her ball on a rope with a game of tug and fetch. See Dia in action by following her on Instagram @diasavestheforest.

Dia on the hunt for invasives. Photo by Arden Blumenthal, nynjtc.org

Utilizing their exceptional sense of smell, dogs have been commonly used for search and rescue, as well as weapons and narcotics detection. These tracking and detection skills are now being used to protect our wild spaces. In 2010, the journal Invasive Plant Science and Management published a study that concluded trained dogs could smell and detect twice the number of invasive plants that humans could observe with their eyes.

Although other groups have used dogs for short projects to detect of invasive species, the Trail Conference’s Conservation Dog Program is the first permanent program of its kind in the Northeast.

This is Dia’s first season in the field; she has already been on more than 20 surveying trips. In several instances, the Trail Conference’s Invasives Strike Force Crew had been to a site and completely removed every plant they were able to find—and then Dia found a few more.

Trail Conference Conservation Corps members removing Scotch broom plants in 2016. The flags indicate where plants have been removed. Photo by Matt Simonelli, nynjtc.org

Dia came to the Trail Conference from a farm in Wisconsin that breeds dogs for hunting competitions. She was selected for the program by Beese, an experienced search and rescue dog handler, who is assisted by volunteer Arden Blumenthal. He has trained Dia with the mentorship of Aimee Hurt from Working Dogs for Conservation in Montana, an organization that has been working with dogs on conservation projects for more than 20 years.

In a metropolitan region highly prone to invasive infestations, early detection when populations are small is a key component of successful invasive species management. Not only does Dia make search-and-destroy efforts more thorough within infestations, she is also able to find stray plants outside the known boundaries where people had focused their searches. Dia helps make sure the area is really cleared to reduce the potential for reinfestation or further spread. With better search efficiency, it should be possible to declare New York State parks Scotch broom-free in the near future. 

Crew from New York State Parks Invasive Species Strike Team removing a Scotch broom plant. Phot by Linda Rohleder, nynjtc.org

Up next for Dia is slender false brome (Brachypodium sylvaticum), an invasive grass that can outcompete existing vegetation, including threatened and endangered species, and harm wildlife populations by altering food sources. Slender false brome has recently been found in Letchworth State Park, and this location will serve as a training ground for Dia.

***UPDATE: Dia and her team recently went to Letchworth State Park, where they did find the invasive slender false brome in areas where surveyors had missed it.

Conservation dogs can learn to detect up to three new species each year, meaning Dia’s incredible talents will continue to develop. “In three or four years,” Beese says, “we’ll be pushing forward the science on what can be done with invasive species detection using dogs.”

New York-New Jersey Trail Conference Conservation Dog team, from left, Arden Blumenthal, Dia, and Joshua Beese. Photo by Heather Darley, nynjtc.org

Post by Linda Rohleder, Director of Land Stewardship, New York – New Jersey Trail Conference and Coordinator, Lower Hudson Partnership for Regional Invasive Species Management (PRISM)

Letchworth State Park Snowmobile Trails

Snowmobile trails at Letchworth State Park offer more than 25 miles of trail passing through some of the most beautiful scenery in Wyoming and Livingston Counties.  The corridor trail (C3) extends through most of the length of this 17-mile-long park.  Entering the park in the North from the Genesee Valley Greenway, the corridor trail follows along the main park road.

Between the Perry and Castile entrances, the trail is the main park road.  This stretch of the corridor gives riders spectacular views of park gorge overlooks not seen by many patrons during the winter months.  On the corridor, south of the Castile entrance, riders can view the iconic Archery Field Overlook of the Genesee River Gorge.  Continuing south, the corridor trail passes by the Humphrey Nature Center and Trailside Lodge where it then traverses the mature oak-hemlock forests of the park.

Parking areas to offload snowmobiles are located at the Highbanks Recreation Area, the Highbanks Campground Parking Lot, and at the Trailside Lodge.  The South Highbanks Shelter and Trailside Lodge are available as winter warming shelters with comfort stations available nearby.

Riding at night requires a Genesee Region night time snowmobile riding permit.  For more information regarding snowmobiling, winter accommodations, trail conditions, and permits online or call the Letchworth State Park Visitor Center at (585) 493-3600.

State Parks reminds all snowmobilers that their machines must be registered and insured to enjoy the trails in Letchworth State Park and the over 10,000 miles of additional trails throughout the state. The bulk of the registration fees is directed to the many volunteer-run snowmobile clubs across the state for trail development and maintenance. For information on joining a snowmobile club, visit New York State Snowmobile Association.

To help ensure a safe and enjoyable season, OPRHP offers the following tips:

– Young riders are required to attend a snowmobile safety course, but all riders can benefit from safety education. State Parks maintains a list of snowmobiling safety classes, check for course availability and age requirements.

– Use caution while traveling across frozen waterways. Check local ice conditions (ice should be at least 5” thick,) carry or wear a flotation device and self-rescue picks, limit travel at night, and “if you don’t know, don’t go.”

– Use the buddy system, leave a travel plan, and emergency contact information with someone at home.

– Wear proper clothing and remember that helmet use is required whenever operating a snowmobile. Using of a rigid chest and back protector is also recommended.

 

Grafton Lakes State Park is another great place to go snowmobiling. Grafton Trail Blazers will be offering free snowmobile rides during WinterFest, January 27, 2018.

Post by Bennett Campbell and Doug Kelly, State Parks

Fall in Love with Autumn Camping

If you think camping in a state park campground is enjoyable in the summer, wait until you experience an overnight getaway in September or early October, when New York’s outdoors is awash in enough colors and sounds of the season to overwhelm the senses.

The autumn mist rising from the water’s surface on a brisk morning, paddling along a tree-lined shore edged in spectacular reds, oranges and golds, the crunch of leaves underfoot on a hike, the aroma of coffee over a crackling fire — these are just a few of the experiences awaiting those campers who prefer to camp once the crowds thin, schools are back in session, and Labor Day is in the rearview mirror.

Benefits to fall camping include fewer neighbors, fewer bugs, and a greater selection of sites from the peak summer season.  With the right clothes and gear, the slightly cooler temperatures make fall camping more comfortable than in the commonly muggy dog days of summer.

Plan to extend a leaf-peeping day trip and sleep under the autumn stars. You can book ahead to reserve a spot or opt for a spontaneous adventure and just grab your gear and go. Many state park campgrounds throughout New York are still open with availability for tent and trailer sites, yurts, cabins, and cottages.

Here are just a few of our fall favorites:

Red House CG, Fall Camping
Listen to the rustling leaves while you camp at Allegany State Park, photo by State Parks.

At 65,000 acres, Allegany State Park is the perfect setting for embracing nature’s colorful palette in the fall months.  Lakes, ponds, and miles of trails, beckon outdoor lovers for hiking, biking, nature walks, fishing, paddling, and more.  Choose from tent and trailer sites, cabins, and cottages.

The Middle Falls At Letchworth State Park
Ballooning at Letchworth State Park, photo by Jim Vallee.

In the Genesee Valley, the sweeping views at Letchworth State Park are jaw-dropping in every season, but add vibrant foliage to the mix and prepare to be amazed by the sheer grandeur.  For campers, the park offers tent and trailer sites and cabins.  Visit the new Humphrey Nature Center or explore the gorge trail on your own — views from Inspiration Point and Middle Falls are a must-see.

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Enjoy the waterfalls at Taughannock Falls State Park, photo by State Parks.

The Finger Lakes gorge parks also provide a stunning backdrop for camping this time of year.  Take a break from campfire cooking and enjoy the bounty of farm-to-table restaurants or the premier wineries in the area. Home to 19 waterfalls, Watkins Glen State Park on Seneca Lake welcomes campers to an array of wooded campsites (many with electric hookups) and rustic cabins.  Walk along the winding paths of the gorge or take a bike ride on the nearby Catharine Valley TrailTaughannock Falls State Park on Cayuga Lake leaves visitors spellbound with its namesake waterfall and rocky cliffs that perch high above the gorge.

Green Lakes (15)
Fall camping with a furry friend at Green Lakes State Park, photo by State Parks.

The only thing more colorful than the fall foliage at Green Lakes State Park is the actual Caribbean-like hues of the glacial lakes themselves.  With campsites nearby including many full-service sites and renovated cabins, campers also have easy access to the park’s 20 miles of hiking trails and championship golf course.

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If you camp at Moreau Lake State Park, take a hike around the lake, photo by State Parks.

Moreau Lake State Park is situated in the foothills of the Adirondacks with tent and trailer sites, cabins and cottages. Hike or bike on the 27 miles of trails and enjoy paddling and fishing on the scenic waters of the park’s beautiful lake or the Hudson River.  Wildlife viewing is a favorite!

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Autumn campers at Taconic State Park, photo by State Parks

Taconic State Park offers autumn campers incredible sites for tents or trailers, cabins and cottages, and plenty to see and do including biking, hiking, fishing, paddling, and more.  As part of the adventure, be sure to check out the Harlem Valley Trail, the South Taconic Trail, Bash Bish Falls, and the Copake Iron Works Museum.

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Fall colors at Bennington Battlefield State Historic Site, photo by State Parks

Tip:  Whether planning a fall camping adventure or taking a leaf-peeping day-trip, a good resource to determine peak color location is the I Love NY Fall Foliage Report issued weekly.

Lose the Loosestrife: Beetles for Biocontrol

Purple loosestrife (Lythrum salicaria) is an invasive plant from Europe and Asia that can overcrowd native wetland plants. It is easily recognized by its tall and showy purple spike of flowers in the summer, lance-shaped leaves and square stems. As an invasive species, it lacks its natural predators and can spread quickly, producing as many as 2.7 million seeds a year.

Loosestrife flower, photo by A McGinnis
Purple loosestrife flower spikes at Silver Lake State Park. Photo by Amy McGinnis

Wetlands are rich habitats that support a diversity of plant, insect and animal species, such as marsh marigold (Caltha palustris,) twelve-spotted skimmer dragonfly (Libellula pulchella,) painted turtle (Chrysemys picta,) green heron (Butorides virescens.)  The introduction and spread of purple loosestrife has resulted in the loss of native plant and animals that depend on wetland habitats. In addition, purple loosestrife limits the growth of rare plants and can clog drainage ways and ditches, negatively affecting adjacent land and crops.

Loosestrife in bloom, photo by Amy McGinnis
Purple loosestrife plants in bloom at Silver Lake State Park. Photo by Amy McGinnis, State Parks

Since purple loosestrife grows in wetlands, methods to control this plant and promote native biodiversity aren’t always easy. Small young infestations can be removed using hand tools, but care must be taken to dig out all of the root portions to avoid regrowth. This may not be feasible for larger, more established infestations. The flower heads cut be cut, bagged and disposed of to prevent seed production and the spread of this plant. Chemical herbicides can be utilized by licensed applicators that follow strict protocols to avoid contaminating water bodies and non-target native species. However, there is an easier way to fight this invasive: biological control or biocontrol. Biocontrol is the control of an invasive species by introducing a natural predator of that species following very specific federal and state regulations and testing to make sure there will be no other negative impacts on the ecosystem. In this case, the biocontrol is the small purple loosestrife beetle, a beetle of the genus Galerucella. These are native to Europe and Asia and feed on purple loosestrife in its native range, keeping the plant in check.

Scientists must thoroughly test any biocontrol species to make sure they only affect the target invasive species and don’t negatively impact native species. In the U.S., studies have shown the beetles to be very host-specific, feeding and reproducing predominately on purple loosestrife. The beetles do not completely eradicate purple loosestrife, but they suppress the plants’ growth and ability to reproduce by feeding on its stems, buds and leaves. Thus, they reduce the plants’ dominance and impact within the ecosystem.  Since 1992, biologists working under state and federal permits have released millions of these beetles at numerous sites across the northeast, including at several New York State Parks, such as Silver Lake State Park in western NY.  In NY, the Department of Environmental Conservation continues to monitor the numbers and effectiveness of the beetles and to ensure there are no unforeseen problems.

The beetles are released in the summer when loosestrife is actively growing. They overwinter in the soil near the host plants and emerge in the spring to reproduce, with females laying eggs from May to June. When they hatch, the larvae feed on the loosestrife’s young growth and work their way down the plant where they eventually enter the soil to pupate. They emerge as adults in the summer and the cycle continues. Though they are not strong fliers, occasionally the beetles have been found 10-12 miles away from the initial release site.

Release sites for the beetles are determined by the dominance of purple loosestrife. These sites usually have a high percentage of loosestrife plants where hand removal of them is difficult. Biologists must submit an application to the Department of Environmental Conservation to justify the need for the beetles and receive a permit. The number of beetles depends on the size of the purple loosestrife infestation. Silver Lake State Park is one location where the beetles have been used as a biocontrol for this invasive plant. Silver Lake has an approximate 40 acre wetland with a purple loosestrife population of about 15%. In 2010, 800 Galerucella beetles were released in an effort to control the loosestrife. One meter by one meter plots were established in order to monitor the survivorship of the beetles and the defoliation, or the loss of leaves, stems and flowers, of the plants where the beetles have fed on them. Each summer after the beetles have emerged, the plots are assessed to determine the effectiveness of the beetles and if any more should be released. This is done by looking at the number of loosestrife plants that are defoliated (eaten, not flowering) vs. the number that are flowering, as well as the number of beetles that are seen. More beetles have been released at Silver Lake State Park since the initial 800 in 2010; the purple loosestrife plants have remained contained to that area and their growth has been restricted.  In 2016, State Parks biologists expanded the program to Letchworth State Park.

The extent of purple loosestrife has declined dramatically in areas with this biocontrol. It is unlikely that the beetles will eliminate purple loosestrife populations entirely. The hope is that as more Galerucella beetles are released across the state, the invasive loosestrife will be diminished, making room once again for the native flora and fauna at these sites.

Beetle on loosestrife at Silver Lake SP, photo by A McGinnis
Galerucella calmariensis beetle on a purple loosestrife leaf at Silver Lake State Park, photo by Amy McGinnis, State Parks

Post by Amy McGinnis, State Parks

Featured image, Galerucella calmariensis beetle on a purple loosestrife, by Amy McGinnis, State Parks