Tuesday, September 25, 2012

Weevils successfully destroy acres of lake-invading plants


(Phys.org)-A weevil that feeds exclusively on giant salvinia has successfully destroyed about 150 acres of the invasive plant this summer on B.A. Steinhagen Lake near Woodville in East Texas, according to personnel involved in a statewide giant salvinia management program.

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Posted by at 3:20 PM
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Monday, September 24, 2012

Aquatic threat found in Erie canal


NORTH TONAWANDA — A highly aggressive invasive species from Korea has been found in the North Tonawanda portion of the Erie Canal as state and federal authorities rush to identify the extent of the impending threat.

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Posted by at 6:23 PM
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Fenton residents have mixed reactions to weed control in lakes


Fenton Twp. — Weed treatment in the lakes of Fenton Township has brought mixed reactions amongst residents. At Monday’s board of trustees meeting, Aquatic Nuisance Plant Control was given approval to treat Lake Ponemah and three other lakes.

Residents on the lakes agreed that the weeds needed to be addressed. However, there was some debate as to whether chemicals should be used to treat the weeds.

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Posted by at 6:20 PM
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Caged grass carp effective against aquatic weeds - study


A Ministry for Primary Industries trial has found grass carp kept in enclosures are effective in eliminating early infestations of aquatic weeds.

As part of the trial, six 2.5 metre by six metre cages were placed in beds of hornwort weed in Lake Karapiro.

Within nine weeks, the three to five fish contained in each cage had removed the weed.

MPI senior adviser Andrew Bell says once the hornwort was eradicated, the fish and the enclosures were removed safely.

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Posted by at 6:13 PM
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Cascade Water Alliance targeting milfoil beds for manual removal


After two successful summers of chemical treatment to remove the eurasian milfoil in Lake Tapps, Cascade Water Alliance is taking a more targeted approach this year: pulling out the invasive weed by hand.

"We're hoping from here on out it will just be maintenance," said Jon Shimada, capital projects director for Cascade.

Beginning this past week, divers from AquaTechnex are patrolling the lake's shores and yanking out what milfoil remains. According to Aquatic Biolgist Terry McNabb, two years worth of herbicides have made "huge strides" in battling milfoil, which can be dangerous to swimmers in large quantities, as well as the ecosystem of a body of water.

"People tend to forget that two years ago there was a bay this size you couldn't see the water," McNabb said Wednesday from the company's boat, located in a cove near then north end of the lake.

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Posted by at 6:10 PM
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Aquatic plant survey needs you


The Lake Gaston Association is again teaming with N.C. State

University's Aquatic and Non-Cropland Weed Management section of the Crop Science Department to survey the Lake Gaston shoreline for the different types of aquatic vegetation.

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Posted by at 6:05 PM
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Freeport, area residents asked to conserve water


FREEPORT, TX (KTRK) -- Dow officials say while employees were spraying a common aquatic herbicide in the Dow freshwater canal on Monday, the Brazosport Water Authority's intake area also was accidentally sprayed…As a result, officials with the Brazosport Water Authority temporarily shut down the water plant until officials can run tests on the water to see if it has been affected by the chemical.

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Posted by at 5:59 PM
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Indiana Department of Natural Resources bans 28 invasive aquatic plants


Come Friday, it will be illegal to give away, buy or sell any of more than two dozen common aquatic plants found in fish tanks, backyard water sculptures and koi ponds.

The invasive non-native aquatic plants -- 28 of them in all -- have increasingly choked the state's rivers, ponds, lakes and canals. As a result, the Indiana Natural Resources Commission voted in May to take action. READ MORE
Posted by at 5:49 PM
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Macatawa Marsh phragmites spraying


The Outdoor Discovery Center Macatawa Greenway will begin spraying an herbicide to invasive phragmites in the Macatawa Marsh sometime this week through the end of September. The herbicide will be applied by a helicopter and target phragmites with chemicals designed to be used in an aquatic environment.

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Posted by at 5:44 PM
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We're Working to Keep Lake Pinehurst Healthy


The presence of hydrilla in Lake Pinehurst has been confirmed by the aquatic weed control program within the N. C. Division of Water Resources (NCDWR) and by four state-licensed aquatic contractors who bid on the Lake Pinehurst restoration contract...

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Posted by at 5:41 PM
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Water Weed Dispute


A four-year battle over aquatic plants is pitting neighbor against neighbor at Haven Lake in Mason County. The bitter dispute over how to treat the common waterweed and big leaf pondweed that grow on the lake bottom has spawned two lawsuits, accusations of threats and gunfire and thousands of calls and emails to the Governor’s office, State agencies and the Mason County Sheriff's Office.

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Posted by at 5:31 PM
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Sandpoint begins milfoil treatment plan


SANDPOINT — Thanks to a little financial help from several institutions, the city is ready to kick off its treatment plan for invasive aquatic weeds. City Beach and Windbag Marina are due to receive much-needed attention on Monday to counter the invasion of Eurasian milfoil. Rather than using herbicides, however, the cleanup crew will employ a mix of manual techniques to keep chemicals out of the lake.

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Posted by at 5:24 PM
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