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7 PM Thursday, March 23rd, 2006:
The Cochituate State Park Advisory Committee (CSPAC), Protect
Our Water Resources (POWR) and the Mass. Congress of Lakes and
Ponds (COLAP) invite you to a public meeting in the Natick Kennedy
Senior Center, 117 East Central St. (Rte. 135), one in a series
regarding the Management of Invasive Aquatic Weeds in Lake Cochituate.
Chris Knud-Hansen, a Ph.D. limnologist
from Colorado, visits Lake Cochituate to
present a non-chemical method for controlling aquatic-weed
infestations of lakes.
solar-powered up-flow water circulator has successfully removed
Eurasian water milfoil and other problem growths from lakes.
One preferred mode of operation permits up to 40-acre coverage
by one device, without disturbing bottom sediments. Although
this approach has worked well in other states and in the Province
of Quebec since 1997, it has not yet been used in Massachusetts.
Local and State officials and the public will learn about this
application of these devices, and will ask the questions necessary
to decide upon local action.
More information on up-flow water circulators is online
|February 20, 2006
Controversy over chemicals
is common throughout state: Milford to seek funding to get
rid of weeds. By Claudia Torrens. Metro West Daily News.
... After years of debate over herbicides,
the town finally opted for manual weed pulling and mechanical
weed harvesting as short-term solutions. Harvard is also
trying a deep drawdown pumping project to lower the water
levels in the winter, exposing the milfoil so it freezes
|February 19, 2006
Town resists weed plan:
Residents speak out against herbicides at Lake Cochituate.
By Katie Liesener. Metro West Daily News.
... But chemicals are not a magic bullet,
said Griffin, who has worked as an environmental engineer
for the EPA and U.S. Department of Energy. She
pointed out that Dudley Pond had been treated with fluridone
five times, every three years, and weeds continue to be
State seeking OK to treat
invasive plants in Cochituate.
By Emily Shartin. Boston Globe.
The state is asking the towns of Natick,
Framingham, and Wayland for permission to use a combination
of chemicals and other methods to clear invasive plants
from Lake Cochituate... Each town's conservation commission
will decide whether to allow the state to move forward with
plans to attack the plants... Vanessa Gulati, a spokeswoman
for the state's Executive Office of Environmental Affairs,
said the state wants to use the herbicide Sonar in Natick...
comment period ends
directly affected by these pesticide applications:
* New Mexico
* North Dakota
* South Dakota
petition to Bureau of Land Management
The Bureau of Land Management (BLM) has proposed to apply
massive amounts of pesticides to public lands in 17 Western
states. The BLM claims these pesticides need to be applied
to forests, rangelands and aquatic areas in order to reduce
the risk of fire and slow the spread of invasive weeds.
Under the proposal 932,000 acres would undergo chemical
application in 17 western states, including National Monuments
and National Conservation areas. The pesticides that would
be used include persistent and mobile chemicals, including
known developmental and reproductive toxins. The list of
pesticides includes 4 new chemicals and 14 other pesticides,
including 2,4-D, bromacil, chlorsulfuron, diquat, diuron,
fluridone, hexazinone, teburthiruon,
triclopyr, and picloram. The proposal would also allow the
use of "new chemicals that may be developed in the
chain likely to continue weed killing. By Daphne Sashin.
Experts say the need for research has become more urgent because
the state has largely lost its best weapon against the exotic
weed, the herbicide fluridone, commercially known as Sonar.
Hydrilla has grown resistant to the chemical in the Kissimmee
Chain of Lakes, Lake Istokpoga in Highlands County, several
Polk County lakes and others throughout the state...
a Troublesome Change in Hydrilla. Mutation seems to cause recently
found resistance to a key herbicide. USDA
Agricultural Research magazine.
Resistance to Herbicide Gives Scientists a New Challenge.
By Luis Pons. USDA Agricultural Research Service.
researchers--at ARS' Natural Products Utilization Research
Unit in Oxford, Miss., and with SePRO Corp., a Carmel, Ind.-based
plant-protection management firm--found
that a form of hydrilla (Hydrilla verticillata) has developed
resistance to fluridone, the most effective herbicide against
|August 27, 2005
Lake Cochituate herbicide
plan slows to a crawl. By Claudia Torrens. Metro West
and slippery creature at Lake Cochituate could change an upcoming
state plan to use herbicides to control milfoil at the lake...
The Boreal Turret Snail, also known
as Valvata sincera, is listed under the Massachusetts Endangered
Species Act as endangered...
|August 26, 2005
Maddocks: Time for a new
treatment. By Philip Maddocks. Natick Bulletin & Tab.,
state Department of Conservation and Recreation, which owns
Cochituate, will likely file an application
next month with the Conservation Commission that will include
a proposal to use the herbicide fluridone...
those lake weeds? County urged to do study. By Bill Novak.
The Capital Times.
use on several Wisconsin lakes has resulted in mixed results,
with milfoil growing back a couple of years after treatments
with the herbicide, according to DNR
research scientist Jennifer Hauxwell.
of legal notice helped foil weed plan. By Keith Kinnaird.
Bonner County Daily Bee.
also sought delay because of swim classes.. A lack of legal
notification about revised plans to use herbicide to combat
milfoil off City Beach appears to have played a role in the
demise of the noxious weed control project...
Beach milfoil plans hit the rocks. By Keith Kinnaird.
Bonner County Daily Bee.
the county is cutting its losses with the permit for Sonar,
it is pushing head with plans to apply another herbicide called
Renovate in the Pend Oreille River at Springy Point, Willow
Bay, Albeni Cove, Laclede and Priest River...
Matters. Habitat management with chemicals. By Mike Pehanich.
explains milfoil and various options to control it. It compares
two lakes in Tazewell County, Illinois: one treated with 2,4D
(!) and the other with fluridone. FAN does not recommend the
use of these two chemicals.
Beach milfoil plans are on hold. County awaits IDEQ permit.
By Keith Kinnaird. Bonner County Daily Bee.
herbicide application project is in limbo because the Idaho
Department of Environmental Quality said it has not received
new maps delineating the proposed treatment areas, said Brad
Bluemer, Bonner County's noxious weed supervisor... Sonar
will be used in a concentration of 10 parts per billion ...
Public Works officials issued a statement Friday saying they
expect no adverse impacts on drinking water. They also point
out the intake for the city's lake water treatment plant is
located in the Pend Oreille River channel, a quarter-mile
upstream of the application site.
the active ingredient in Sonar PR is readily absorbed by organic
matter. Since water treatment at the Lake Plant includes the
use of activated carbon absorption, any residues of the herbicide
that might reach the Lake Plant intake should be removed by
the treatment process," the statement said.
like milfoil? 'Bomb' the lake. Rutland Herald.
weed problem defies simple solution. Wisconsin State Journal.
Prompted by success stories trumpeted by a company that sells
fluridone treatments, several Dane County residents are promoting
the chemical for use on local lakes. Lakeshore
property owners already may pay for chemical spot treatments
for weeds, under state Department of Natural Resources' supervision.
But the goal of the fluridone boosters is to use the chemical
in a whole-lake weed treatment aimed at eradicating watermilfoil.
A petition is circulating to request the DNR to approve fluridone's
as DNR researchers are well aware, fluridone is hardly an
unqualified success. It has been employed on several lakes
nationwide with mixed results. The chief problems include
the temporary nature of fluridone's effectiveness. Watermilfoil
tends to return in two to five years, sometimes thicker than
sure, fluridone has yielded some success stories. At Houghton
Lake in Michigan, state DNR officials were skeptical of a
2002 fluridone whole-lake treatment. But three years later
residents report satisfaction with the results. The Houghton
Lake treatment came at a steep price, however. Lake
residents and businesses within two miles of the lake were
assessed $1.4 million to pay for it. Moreover, follow-up
spot treatments are needed to keep watermilfoil in check...
PR being used to treat Sand Creek milfoil. By R.J. Cohn.
Bonner County Daily Bee.
say the public has nothing to fear about an herbicide being
dumped into the pristine waters at the
mouth of Sand Creek and City Marina. The herbicide,
which is being used to combat Eurasian water milfoil in the
lake, will be applied starting Monday and lasting through
all of August... Floridone has been used to control milfoil
on a lake-wide basis without harming native plants,
although its use is not allowed in Minnesota lakes...
marks success in fight with milfoil. By Tom Mitchell.
key to the success of the Sonar treatment has been using a
higher dose of the herbicide for a longer period of time,
according to Robert Moore, former president of the lake association.
The treatment cost roughly $300,000, for which the association
got $27,000 from the state, much
less than they had counted on...
says no to controversial herbicide. By Michael Cox. The
By a vote of 4-1 and following three public
hearings on the matter, Wellelsey's Natural Resource Committee
has said no to the use of the controversial herbicide fluridone
to cure the ailing Morses Pond... NRC
vice-chairman Heidi Gross, who voted against the herbicide,
said the decision was an easy one because it is consistent with
Pest Management Policy the NRC, School Committee and Board of
Health passed two years ago. That policy prohibits the use of
herbicides and pesticides on public land or public water supplies,
unless there is a direct danger to human health or environmental
health, and where no other viable alternatives exist...
The herbicide had also drawn opposition
from the Wellesley Cancer Prevention Project and the town's
Department of Public Health...
Lake a model in EWM fight. By Cheryl Holladay. Houghton
... Professional Lake Management of Caledonia and Aquatic Control
of Indiana launched six boats to treat the lake in May, 2002,
by inserting (not spraying as the common
misconception) six parts per billion fluridone at a one-foot
works to stem spread of hydrilla in Limerick pond. By Seth
Harkness. Portland Press Herald.
... They used a highly accurate global
positioning system to chart their course as they applied
a minute dose of fluridone, a herbicide
that costs $1,500 a gallon and kills hydrilla without affecting
people or fish...
rejects herbicide for Morses Pond. By Lisa Keen. Boston
the Wellesley Natural Resources Commission voted 4 to 1 against
relaxing its policy to allow the consideration of fluridone...
Cochituate milfoil situation worsens. By Claudia Torrens.
is no assurance that these chemicals applications are going
to get the problem under control," said Levin. "The
state is failing to implement non-chemical alternatives."
... Levin's two dozen clients appealed the herbicide plan the
state put together in 2003 to control milfoil. When the appeal
was denied last year, the group challenged that decision to
the state Division of Administrative Law Appeals...
poses minimal threat to humans, officials say. By Christen
Kelleher. Shore Line Times.
Pending Connecticut Department of Environmental
Protection agency approval, parts of the north and south cove
in Lake Quonnipaug will be treated
with the herbicide known as Sonar SRP... Spraying, which began
this week and continues through June 30, is
part of a research effort on the control of aquatic weeds by
the Connecticut Agricultural Experiment Station.
outsmarts herbicide, threatens Florida's lakes anew. By
Daphne Sashin. Orlando Sentinel.
...Scientists have found their best treatment
is losing its effectiveness because the fast-spreading weeds
are becoming tolerant to the chemical in lakes where it's used
the pond: Is an herbicide really the best solution? By Michael
Cox. The Wellesley Townsman.
... Ken Wagner, a specialist with the environmental firm ENSR
and the town's consultant on Morse's Pond, defended fluridone's
use, saying he does not believe the pesticide poses an undue
risk for the benefits it provides... Wagner
pointed out that the federal government has approved fluridone
for use in drinking water at twice the level he would be proposing
to use it. He said the fluridone would be applied at eight parts
per billion, or roughly a drop for the size of a swimming
OK's use of weed killer in pond. Sonar treatment to begin this
month. By Christine Wallgren. Boston Globe.
... The town's Conservation Commission
last week lost a long-running fight to keep the weed-killer
Sonar from being used in East Monponsett Pond, opening
the way for preparations for the treatment to begin almost immediately.The
state Department of Environmental Protection ruled that Sonar
can be used as long as the welfare of
three endangered species known to live in the pond is closely
Chicot to be drawn down to combat hydrilla. The Advocate
... The herbicide purchased for this application is SONAR PR
brand of fluridone.
in Lake George "Sonar" case appears to be unprecedented
in NY state. News release from John Sheehan of the NY Adirondack
what appears to be an unprecedented ruling in New York State,
an administrative law judge has found that the State Office
of General Services agreed to destroy
rare, protected plants in Lake George when it consented to
work with the Lake George Park Commission on a plan to reduce
Eurasian watermilfoil last year.
Administrative Law Judge Molly McBride has ruled that OGS
gave its consent to destroy rare, threatened and endangered
plant species that are growing in the same location when it
agreed to be a co-applicant with the LGPC in seeking an Adirondack
Park Agency (APA) permit for the experimental
use of the chemical pesticide fluoridone (brand name
Sonar) in four locations...
Pesticide Sonar: Lake George Pesticide Plan on Hold. New
York Adirondack Council Newsletter.
... There are 48 plants native to Lake George. Despite claims
from the consultant that Sonar is safe, the
applicant's environmental impact statement admits that they
have no data on what will happen to 32 of those 48 species when
Sonar is applied...
Environmental Quality Review. Statement of Findings of Lake
George Park Commission for the Lake George Sonar® Demonstration
|| New York
of Herbicide Is Proposed in Weed-Choked Lake George. By
Winnie Hu. New York Times.
... several environmental groups have
voiced concern that the use of Sonar would undermine their efforts
to persuade towns in the Adirondacks to refrain from using pesticides.
"We're worried that the idea would be expanded to the other
2,800 lakes and ponds and we'll be fighting it over and over,"
said John F. Sheehan, a spokesman for the Adirondack Council,
an advocacy group... The consultant recommended using more than
2,000 pounds of the chemical at four sites in Lake George.