E. R. Hinman & Sons

A Burlington CT Lumber Mill

Forestry Insights (Our Blog)

“Stormwise” Project May Give New Clues in Power Grid Protection

February 13, 2014 Charlie Leigus

Forester’s Note:

I have known Professor Tom Worthley at UConn for many years.

I read this story with great interest and will continue to keep tabs on the Stormwise project.

C.L.

UConn Researchers Go Into The Woods In Search Of New Ways To Protect Power Lines

By BRIAN DOWLING

The Hartford Courant5:30 p.m. EST, February 12, 2014

STORRS- Two professors, a master’s candidate and a research assistant walked into a forest.

Their boots crunching in the snow, the research team made it to their experiment, a young stand of sugar maples and other species that has been thinned out and wired with sensors.

“They are swaying more,” said Jenna Klinck, the master’s candidate, who analyzes how trees react to forest thinning and build up strength afterward.

The group has monitored this site for more than a year as part of its efforts to learn how managing the deeper section of roadside forests could reduce outages from major storms.

UConn Professor Tom Worthley scans a section of UConn Forest that has been thinned to develop storm and tree research. (Mark Mirko / Hartford Courant / February 12, 2014)

UConn Professor Tom Worthley scans a section of
UConn Forest that has been thinned to develop
storm and tree research.(Mark Mirko / Hartford Courant / February 12, 2014)

Tree management plans from the state’s two electric utilities largely ignore this slice of the state’s forest — from about 10 feet to 100 feet in — even though researchers and the state’s top forester say a significant number of outages are caused by trees falling into the lines from farther in the forest.

“When the big storms come, these trees get a big gust and they can’t withstand it,” said Mark Rudnicki, assistant professor of forest ecology at UConn. “We want to then change that forest edge structure so that doesn’t happen as much.”

Trees just inside the forest are generally weaker than the ones along the road that are adapted to wind because they are not regularly exposed to it. To fix this, the team is focusing on thinning out the forest, giving the choice remaining trees more room to grow, which will slowly make them stronger.

The research, though in its initial stages, hopes to offer a management plan, called Stormwise, that mirrors the type of in-depth community-centered approach to tree risk that led to the Firewise program to address wildfire risk.

And the snowy patch of forest might hold some answers to how this could work.

In August 2012, researchers attached sensors to the trees, measuring how they sway back and forth in the wind. A year later, foresters thinned the trees, exposing them to more wind. Though the initial thinning exposes the trees to more wind, the stress pushes them to get stronger and the swaying should lessen.

Just feet inside the forest, many trees lack wind strength because their growth is focused vertically to reach sunlight. When stronger storms blow through the usual protections of the outer forest, the inner, less stable trees topple.

“If you expose a tree to more wind, it will respond by changing its growth strategies, its priorities,” Klinck said. “Instead of focusing on trying to grow taller, it will increase woody growth to the stem, the bowl and to the root structure, really wherever it is feeling most stress from the wind it is going to strengthen those areas.”

Rudnicki said the stress changes the shape of the trees and the properties of the wood itself. The trees develop thicker rings and the tree becomes more flexible. “Trees do phenomenal things when you start to acclimate them to the wind.”

He has researched how trees collide into one another to absorb wind energy during storms.

“There’s a lot of wind energy absorbed by collisions,” he said. “Until you get a sudden burst, and you’re all alone and you can’t rely on your neighbors anymore. We want trees to be more independent, more self-stable.”

One difficulty to this process is it requires more time and resources. The forest would need to be examined, rather than merely trimmed back. Towns would need planning. And homeowners would need to sign off on any work. But the process would not need to keep pace with the five-year trimming plan. Rudnicki said the deeper forest management would operate on a 20- to 30-year cycle.

When the forests are thinned, the researchers plan to arrange that the wood be milled on-site, when possible, for lumber to be sold to support the program or to compensate the land-owner whose trees were cut.

Stormwise has two other experiment locations — one in Portland and another in Litchfield — where the trees have been thinned to stimulate growth and strengthening. They hope to establish two more sites wired with sensors in coming months.

For the rest of the story please click here!

 

 

Standing Tall

January 10, 2014 Charlie Leigus

A Notable Tree that is a Champion Measures up at UConn

 

In October 2013, a group of Connecticut Botanical Society folks met at the Waxman Conifer Collection at the UConn Storrs Campus, located at the corner of Rte. 195 and East Road.  The collection, adjoining the UConn Research Farm is the result of years of work by the late Dr. Sidney Waxman who collected many witch’s brooms from which he developed a number of small statured plants (dwarf conifers) popular in today’s nursery trade. Behind the small 18th century farmhouse where the Waxman family lived are numerous mature trees including a Veitch fir (Abies veitchii), Cinnamon flake maple(Acer griseum ‘Cinnamon Flake’), several Japanese umbrella pines (Sciadopitys verticillata), and a weeping larch ( Larix decidua ‘Varied Directions’).  Ed Richardson a member of both the CT Botanical Society and the Notable Trees Project was on hand to point out a large Miyabe Maple, (Acer miyabei).  On this day Ed measured the tree which he then verified as a CT Champion Notable Tree.

Notable Trees are identified by the Notable Trees Project, established in 1985, the Project it is made up of a group of knowledgeable volunteers who collect and distribute information about Connecticut’s largest and most historic trees, both native and introduced. Sponsored by the Connecticut Botanical Society, The Connecticut College Arboretum, and the Connecticut Urban Forest Council, members work to educate folks about the importance of our state’s natural heritage.

Ed Richardson of Glastonbury Photo by Frank Kaputa (Oct 26, 2013)

Ed Richardson of Glastonbury
Photo by Frank Kaputa (Oct 26, 2013)

The Connecticut College Arboretum maintains a computer database that includes records of over three thousand individual ‘Notable Trees’ in the state. The champion tree lists are derived from this database which records tree size, location, ownership, and condition. The website list the Notable Trees by scientific and common name as well as National Champions, their tree lists include: Species for a Town, Full List by Town, Full List by Species, Biggest Trees, Tallest Trees and Largest-Trunked Trees.

The Miyable Maple is little-known species from Hokkaido in northern Japan. It is hardy in USDA Zones 4-7 is considered an outstanding maple known for its durability, adaptability, and multiple seasons of interest. This beautiful maple grows to 20-25′ tall to 15-20′ wide in 15 years, and matures to 40-50′ tall and 30-35′ wide. It is a uniform growing tree more densely branched than most maples, making it an excellent shade tree.

 

Story Source:

University of Connecticut Home & Garden Education Center Blog/posted by uconnladybug

What Falls Down Should Be Composted!

October 11, 2013 Charlie Leigus

As the fall foliage season passes, what was once viewed as “spectacular” and “beautiful” as far as foliage gazing, now looks like a scattered mess or eyesore on your property.  One way we can “give back” for the show that Mother Nature has given us is by composting our leaves in our yard.

Recycling the nutrients that give life to the trees in our yard also gives nutrients to the soil and the ground that supports new plant life in the spring. Composting is an easy and inexpensive way to contribute and be green in your own back yard.  It should not take too much of your time to get started and best of all, it’s free! For more information I urge you to visit the Connecticut Agricultural Experiment Station website to learn more.  I have attached a link about backyard composting here

Now you know what I will be doing next weekend!.

 

Bye Bye Chlorophyll

October 9, 2013 Charlie Leigus

I am on a job site today in Scotland Connecticut. Everywhere I look, the view is quite spectacular. I have snapped a few images to share with you on my cell phone.

The fall colors this year are better than they have been in quite some time, as far as I can remember.

The forester in me began asking…  Why? Why is it more beautiful this year than last? Why are the reds and yellows more brilliant?

One answer is that in the absence of any major tropical storm or hurricane activity, the leaves have been able to hang on. We have not had an early killing frost.  Due to warmer and wetter conditions in the spring and early summer, tree root structures were well fed and thus, prolific leaf growth was made possible. Later in the summer and early autumn, it has been fairly dry and the sugar maples, especially, are making a lot of glucose. That is a key ingredient for red and purple leaves in fall color making.

We all know from our elementary science class that trees utilize sunlight and a chemical called chlorophyll to make food and sustain tree growth. The chemical chlorophyll in the leaves is what gives the leaves their green color.  In the fall, as the amount of available sunlight diminishes, chlorophyll production slowly halts. As this process occurs, other chemicals that are in the leaves but hidden by the abundance of chlorophyll are exposed to sunlight and we begin to see “the splendor” of autumn all around us.

The color spectrum ranging from bright red shades to deep purple foliage colors come from anthocyanin pigments. Brown foliage colors come from tannin. Other colors, which have been there all along, become visible when the chlorophyll disappears. The orange colors come from carotene and the yellows from xanthophylls.

The bottom line is that there is a complex dance of chemicals triggered when the available sunlight begins to diminish and what we interpret as “beauty” across the landscape was actually there all along.

Mother Nature just needed fewer hours of sunlight and cooler temperatures to begin the chemical process.

I hope you are taking a few minutes to enjoy the beautiful views that Connecticut trees are offering this autumn. I sure am. -Charlie

Mosquitoes with EEE virus identified in Connecticut

September 12, 2013 Charlie Leigus

Mosquitoes with Eastern Equine Encephalitis (EEE) virus have been identified in Hampton, Plainfield and Voluntown.

Eastern equine encephalitis is a rare but serious disease caused by a virus that is spread by adult mosquitoes. The numbers and types of mosquitoes with EEE identified in the Pachaug State Forest in Voluntown prompted the Department of Energy and Environmental Protection to close two of the campgrounds at the forest and to temporarily close part of the forest to recreational activities. People, especially those in the immediate area surrounding the forest, are warned to take precautions to avoid mosquito bites when outdoors.


Photo credit: The State of Connecticut Mosquito Management Program

To reduce the risk of being bitten by mosquitoes residents should:
1. Minimize time spent outdoors between dusk and dawn when mosquitoes are most active.
2. Be sure door and window screens are tight-fitting and in good repair.
3. Wear shoes, socks, long pants, and a long-sleeved shirt when outdoors for long periods of time, or when mosquitoes are most active. Clothing should be light colored and made of tightly woven materials that keep mosquitoes away from the skin.
4. Use mosquito netting when sleeping outdoors or in an unscreened structure and to protect small babies when outdoors.
5. Consider the use of mosquito repellent, according to directions, when it is necessary to be outdoors.

To learn more about protecting yourself from mosquitoes and the disease organisms they transmit, visit Connecticut’s Mosquito Management website at http://www.ct.gov/mosquito

Click here for a link to common FAQ’s about mosquitos.

 

When you are in Hartford… I spy…

August 18, 2013 Charlie Leigus

Forester’s Note:

A great day trip to Hartford for tree lovers, or nature lovers of any sort, really,  is a trip to the Cedar Hill Cemetery.  I think this fall will be particularly beautiful. The grounds are comprised of  270 acres of woodlands, fields, wetlands and ponds.  According tho the website, there is quite a bit of wildlife. Animals spotted in Cedar Hill’s wooded areas include white-tailed deer, red fox, eastern coyote, raccoon and cottontail rabbit. Cedar Hill’s songbirds include the vireo, chickadee, towhee, red-winged blackbird, catbird and yellow warbler. The Canada goose, bob-white quail, ring-neck pheasant, wild turkey, mallard and wood duck are a few of the land and water fowl found.

C.L.

 

From the web:

“Cedar Hill’s landscape contains many notable trees, several of which are state champions. Cedar Hill is a member of the Connecticut Tree Protective Association and has been honored by that organization for its “exemplary professionalism and dedication to the protection and care of Connecticut trees.”

In addition to the wildlife, Cedar Hill’s landscape contains rare trees specifically imported for its arboretum, many of which are state champions. Chinese witch-hazel, flowering dogwood, weeping cherry, tulip, magnolia and ginkgo biloba are some of Cedar Hill’s wide variety of trees. Others are cedar, white ash, black birch, red oak, elm, hemlock, and silver, red and sugar maple. Horticulture specialists maintain an inventory of Cedar Hill’s trees to serve as an educational resource and enhance future planning of this distinguished arboretum.”

Among the notables resting in Cedar Hill are Gideon Welles, Secretary of the Navy under President Abraham Lincoln and Katherine Hepburn.

Protecting the Preserve

August 10, 2013 Charlie Leigus

Forester’s Note:
I found this article very interesting. I have a few questions and welcome a thoughtful discussion.

  • What is the “long term plan” for the care of the forest associated with this parcel?
  • What do you think about the purchase price and the fundraising needed to execute this effort?
  • Are you opposed to any and all development plans that could happen?
  • Is ALL development, bad development?

Shoreline Times

 

 

 

 

 

THE PRESERVE: Environmental groups strike deal with developers after 15 years of wrangling over 1,000 acres of coastal forest

By Ann Gamble

OLD SAYBROOK – The Trust for Public Land recently announced an agreement with River Sound Development, LLC to purchase the 1,000 acre tract of uninterrupted coastal forest known as The Preserve.

River Sound tried unsuccessfully over the past 15 years to develop the property. Plans ranged in scope from the original proposal of more than 200 homes and a golf course, to smaller “pod” developments with the carrot of town ball fields added to the mix. All proposals met with strong opposition and lawsuits from environmental groups and local residents.

“I’m delighted, and it’s about time,” abutting property owner Bob Lorenz, a local photographer, said. He still lives on the 40-acre parcel of land his parents purchased in the 1950s, and has personally filed several lawsuits over the years aimed at defeating River Sound’s plans. “I thought it was important, and it needed to be done,” he said of his personal crusade. Lorenz, who serves on the board of the Old Saybrook Land Trust, sued the developer as a property owner and not as a member of the trust.

Lorenz grew up “in a rural environment, playing in the woods, eating fresh food in season, canning and freezing everything.” He worked to preserve the land to provide future children the wild opportunities he enjoyed. “Old Saybrook has a lot of open space, but there’s also a lot of pressure to develop it,” he added.

Of the years to come, Lorenz said that while it’s a huge positive step, “there is still a lot of work to be done, details to figure out,” such as where the funds will come from and what the final ownership and use status will be.

The purchase agreement requires a $10 to $11 million fundraising effort by June, 2014. If successful, “the land will be permanently protected from future development and open to the public to enjoy for passive recreational activities such as hiking and wildlife viewing,” Kate Brown of the TPL said in a statement, announcing the agreement.

“I am truly excited that an agreement has been negotiated and will work with the TPL, and all interested parties, towards closure on this beautiful piece of property,” Old Saybrook First Selectman Carl Fortuna said. “I was approached early in 2012 by reps from the TPL about their interest in attempting to negotiate a deal with the then owner,” at about the same time, River Sound approached him with a much smaller development plan than previously proposed. “Obviously, a lot of work remains. Money needs to be secured from the state and, likely, the federal government. In addition, a significant amount of private funds will have to be raised. The town’s contribution, if any, will be dictated by our bonding model. Old Saybrook residents will be asked to borrow money for a new police station, school projects and the WPCA project over the course of the next year so funds for this purchase from the town will be dependent on the cost of those other capital projects,” he added.

The majority of the Preserve’s acreage is in Old Saybrook with smaller parcels in Essex and Westbrook. The area includes 38 vernal pools and 114 acres of wetlands and more than 3,100 linear feet of watercourses. Migratory birds use the area as a stop-over, and the forest’s many vernal pools support amphibian species such as the northern dusky salamander, spotted turtles and box turtles. Bobcats and fisher cats have also been spotted on the property, along with rare plant species such as the eastern prickly pear.

State Representative from the 36th District, former Essex First Selectman and tenacious opponent to the development of the Preserve, Phil Miller, describes the land as a “wet rocky sponge,” which helps to drain surface waters on the property to important watersheds: the Oyster River, Mud River and Trout Brook and then into Long Island Sound.

For the full story click here!

EMERALD ASH BORER FOUND IN TWO NEW COUNTIES IN CONNECTICUT, HARTFORD AND LITCHFIELD

August 9, 2013 Charlie Leigus

Forester’s Note: A public hearing on the expansion of the existing EAB quarantine to Fairfield, Litchfield, and Hartford Counties will be held at the Prospect Town Hall at 7PM on Wednesday, August 28, 2013.

Emerald Ash Borer Collage

 

 

 

 

 

 

 

New Haven, CT – The Connecticut Agricultural Experiment Station (CAES) announced today that the emerald ash borer (EAB) (Agrilus planipennis) has been detected in two additional Connecticut counties – Hartford and Litchfield – in the towns of Southington and Watertown on July 29 and August 1, 2013, respectively. This invasive insect has now been found in four Connecticut counties and fifteen towns. The identification of EAB in Southington and Watertown has been confirmed by the federal regulatory officials in the USDA Animal and Plant Health Inspection Service, Plant Protection and Quarantine (USDA-APHIS-PPQ). The Watertown detection was made through the Experiment Station’s Cerceris wasp biosurveillance program and the Southington detection was through the purple prism trap program run by the University of Connecticut Cooperative Extension System.

In Connecticut, a quarantine was previously established that regulates the movement of ash logs, ash materials, ash nursery stock, and hardwood firewood from within New Haven County to any area outside of that county. The New Haven County quarantine mirrors a federal quarantine also imposed on New Haven County. The Hartford and Litchfield detection, in addition to the earlier Fairfield County detection in Sherman, CT will result in the expansion of the state and federal quarantines in Connecticut. The emerald ash borer is responsible for the death and decline of tens of millions of ash trees and has been detected in 20 states from Kansas and Michigan to New Hampshire and south to North Carolina. Ash makes up about 4% to 15% of Connecticut’s forests and is a common urban tree.

In Connecticut, the insects were previously confirmed in Prospect, Naugatuck, Bethany, Beacon Falls, Waterbury, Cheshire, Oxford, Middlebury, Hamden, North Branford, and Southbury, all in New Haven County, and Sherman in Fairfield County as part of surveys conducted by CAES, the Department of Energy and Environmental Protection (DEEP), the U.S. Forest Service, and the University of Connecticut Cooperative Extension via an agreement with USDA APHIS PPQ in joint efforts to detect the presence of EAB in the state or determine the extent of the current New Haven County infestation. More recently, EAB has also been detected in Newtown, CT. EAB has also been identified in Dutchess County, New York, Berkshire County, Massachusetts and Merrimack County, New Hampshire.

A single specimen of EAB was recovered in Watertown by a burrow of the ground-nesting, native wasp (Cerceris fumipennis), which hunts beetles in the family Buprestidae, including the emerald ash borer. The wasp is an efficient and effective “biosurveillance” survey tool and does not sting people or pets. Another single specimen of EAB was detected in a purple prism trap in Southington. There are 307 purple prism detection traps set across the state, excluding New Haven County, by the University of Connecticut Cooperative Extension System. The EAB surveillance program is supported by the USDA-APHIS-PPQ.

“These latest detections are largely near or adjacent to our known infestations and most are likely part of the original New Haven infestation. Nevertheless, we are seeing more and more of our ash trees at risk.” said State Entomologist Kirby C. Stafford III. “Not moving firewood or ash still remains one of the best ways to help slow the spread of EAB.”

“It is disturbing to see the spread of EAB to two new Connecticut counties and reinforces the need to curb its spread by preventing the movement of wood products out of affected areas,” said DEEP Commissioner Daniel C. Esty. “We will continue to work closely with The Connecticut Agricultural Experiment Station, the Department of Transportation, and other state and local agencies to limit the spread of EAB and minimize the impact this invasive beetle will have on Connecticut’s ash trees.”

Regulations are also in effect regulating the movement of firewood from out-of-state into Connecticut or within Connecticut, including the requirement of a permit to bring out-of-state firewood into Connecticut. These regulations were put in place to ensure that EAB and other invasive insects arenot carried into Connecticut, or spread throughout New England, through the movement of firewood.

PRESS RELEASE

Friday, August 9, 2013

MEDIA CONTACTS:

Dr. Kirby C. Stafford III, Ph.D. Dr. Victoria L. Smith

Acting Director, Vice Director, State Entomologist Deputy State Entomologist

The Connecticut Agricultural Experiment Station The Connecticut Agricultural Experiment Station

123 Huntington Street (zip 06511) 123 Huntington Street (zip 06511)

P.O. Box 1106 P.O. Box 1106

New Haven, CT 06504 New Haven, CT 06504

Phone: (203) 974-8485 Phone: (203) 974-8474

Email: Kirby.Stafford@ct.gov Email: Victoria.Smith@ct.gov ‘

 

For the LOVE of Trees!

July 16, 2013 Charlie Leigus

Forester’s Note:

If you have a tree of interest in your yard, take a picture and e-mail it to me at E.R. Hinman.

We are always interested in investigating new and unusual shapes and displays of nature.

C.L.

Volunteer Carries On Mission To Find The State’s Largest, Most Notable Trees

July 15, 2013|By ERIK HESSELBERG, SPECIAL TO THE COURANT, The Hartford Courant

EAST HAMPTON — When Ed Richardson speaks of “Connecticut champions,” he doesn’t mean the UConn Huskies. He’s talking about Fagus sylvatica – the colossal European beech in Pomfret that is 27 feet in circumference and towers 100 feet in the air.

Then again, he may mean Platanus occidentalis, Simsbury’s huge “Pinchot Sycamore,” which was there beside the Farmington River before the Declaration of Independence was signed and is there still. The mammoth tree has a circumference of nearly 28 feet.

“That’s a monster,” says Richardson, who should know, having measured the Pinchot Sycamore along with 1,000 others for the Connecticut Botanical Society.

Ed Richardson loves trees, the bigger the better. For more than two decades, Richardson, an 88-year-old former insurance executive, has been tramping around the state in search of arboreal giants worthy of designation as “Connecticut’s Notable Trees,” a listing of the state’s largest and most historic species. The volunteer effort, begun in 1985 and called the Connecticut Notable Project, is sponsored by the Connecticut Botanical Society, The Connecticut College Arboretum, and the Connecticut Urban Forest Council.

“I’ve always been interested in trees,” says Richardson, who lives in Glastonbury. “They are the largest living things we’ve got. They are bigger than whales and certainly older.”

Richardson shared his prodigious knowledge of Connecticut trees during a recent walk through East Hampton’s downtown. Along the way, he pointed out notable trees gracing the town’s landscape, including a “champion” sycamore maple on Main Street with a girth of 14 feet. But the tree expert said the sycamore was svelte compared to the town’s champion sliver maple (acer saccharimum) which measures 26 feet in circumference, making it the largest of its kind in the state.

“Ed is very knowledgeable,” said Marty Podskoch, who organized the tour as part of the town’s “Explore East Hampton” series of guided walks through local history. “He hiked the area twice to scout out interesting trees. He really prepares. ”

Richardson began identifying and measuring big trees for the Connecticut Botanical Society in 1987. His hunt usually begins with a tip from a resident, although he sometimes happens upon a giant out of the blue.

“People call us to say they have a tree that’s bigger than one we have listed, and sometimes they do,” Richardson says. “Sometimes they’re wrong about the species. The European beech in Pomfret, I stumbled upon. I heard about an old estate in Pomfret where I suspected there might be some big trees. Sure enough, there it was. It’s a monster! Trees need to be taken care of, but it costs money. That’s why some of the oldest species are found where people can afford to take care of them – estates, hospital grounds, parks, college campuses. Wesleyan [University in Middletown] has a number of fine old trees.”

Richardson’s favorite tree is the majestic bur oak on the grounds of the Institute of Living in Hartford. It was planted by the great landscape designer, Hartford-born Frederick Law Olmsted, in 1862, one year into the Civil War. At the Institute is also seen one of the state’s largest ginkgo trees, a primitive species native to eastern China and known for is pretty fan-shaped leaves.

As to the age of Simsbury’s famed Pinchot Sycamore (named for the pioneer American conservationist Gifford Pinchot) Richardson believes it has stood beside the Farmington for at least 300 years. Its true age, however, will likely remain a mystery. “I suspect the trunk is hollow,” Richardson says. “That’s usually the case with old sycamores. You can’t count the rings on a hollow trunk.”

Storms take their toll on trees, especially old trees, and Hurricane Irene and the October snowstorm in 2011 claimed many a giant. Here Richardson – perhaps from his years in the life insurance business – is philosophical. “Well, of course, trees are mortal, just like we are. But they do grow back.”

For a link to a list of Connecticut’s Notable trees (and their history) please check out our ER Hinman Facebook page and Like us!

Releasing a “Natural Enemy” to Do What it Does Best!

May 30, 2013 Charlie Leigus

PARASITOID WASP RELEASED IN CONNECTICUT FOR BIOCONTROL OF THE EMERALD ASH BORER

New Haven, CT – The Connecticut Agricultural Experiment Station (CAES) announced that small stingless parasitoid wasps, Tetrastichus planipennisi, will be released Thursday by Dr. Claire Rutledge in the towns of Prospect and Middlebury for the biocontrol of the emerald ash borer (Agrilus planipennis) (EAB). This biocontrol release is conducted in cooperation with Juli Gould of the USDA Animal Health Inspection Service (APHIS) under specific guidelines for the release of EAB parasitoids. The female Tetrastichus wasp lays eggs inside EAB larvae where the developing parasitoid larvae kill the ash borer larvae.

The emerald ash borer is responsible for the death and decline of tens of millions of ash trees from the mid-west to New York State and south to Tennessee. Ash makes up about 4% to 15% of Connecticut’s forests and is a common urban tree.

This destructive insect was first detected in Connecticut in the town of Prospect in July 2012 and was subsequently found in eight other towns, all in New Haven County, as part of surveys conducted by CAES, The Department of Energy and Environmental Protection (DEEP), and the University of Connecticut Cooperative Extension or from reports by the public. The other eight towns are Naugatuck, Bethany, Beacon Falls, Waterbury, Cheshire, Oxford, Middlebury, and Hamden. EAB has also been identified in Dutchess County, New York, Berkshire County, Massachusetts, and Merrimack County, New Hampshire.

“The release of this natural enemy of EAB is another valuable approach in our efforts to manage and slow the spread of the emerald ash borer” said State Entomologist Kirby C. Stafford III.

Another parasitoid, Oobius agrili, which can kill up to 80% of EAB eggs laid in the summer will be released at a later date by Dr. Rutledge. Each female wasp can parasitize up to 62 EAB eggs in her lifetime. So far, these two wasps have been released in 14 of the 19 states where EAB has been found. The wasps, which are extremely specific to EAB, were discovered in China, where EAB originated. They are being reared by the USDA in a laboratory in Brighton, Michigan.

In Connecticut, a quarantine has previously been established that regulates the movement of ash logs, ash materials, ash nursery stock, and hardwood firewood from within New Haven County to any area outside of that county. The quarantine currently applies to only that part of the state and mirrors a federal quarantine also imposed on New Haven County.

In addition to the quarantine, regulations are in effect regulating the movement of firewood from out-of-state into Connecticut or within Connecticut. These regulations were put in place to ensure that EAB and other invasive insects are not carried into Connecticut, or spread throughout New England, through the shipment of firewood.

Detailed information about the quarantine and the firewood regulations can be found at www.ct.gov/deep/eab or www.ct.gov/caes.

The emerald ash borer is a regulated plant pest under federal (7 CFR 301.53) and state (CT Gen. Statute Sec. 22-84-5d, e, and f) regulations. For more information about the EAB, please visit the following website: www.emeraldashborer.info. A fact sheet providing guidelines on the treatment of ash trees to protect them from EAB is also available at www.ct.gov/caes. A factsheet on the biological control of the emerald ash borer is available at http://www.aphis.usda.gov/plant_health/plant_pest_info/emerald_ash_b/downloads/eab-biocontrol.pdf

 

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