Aquatic Weeds

Lake George Milfoil Removal

 Lake George,

Lake George,

     The Lake George Park Commission removed more than 67,000 lbs of Eurasian Watermilfoil from the lake this year. Tommy Thompson, owner of Aquatic Invasive Management LLC and one of the contractors employed by the Commission, said his company had been targeting the densest concentrations of the plant, instead of dealing with the lake as a whole. "That was taking time away from other areas that could really use the milfoil eradication," said Tommy.

     With the most milfoil removed from the Northwest Bay area, other areas weren't as well covered this year (the Village area only had 21 bags removed this year, compared to 536 bags out of the same area last year). "It's tough to negotiate and work around people when we're trying to focus on a specific area," said Thompson.

     Added to dealing with schedules, tourist season and the weather, boats on the lake often drive through patches of the weed; once fragmented, every fragmented bit can go on to found new colonies/patches of the invasive. Making it very hard to control.

     The full article from is available here or through the link below.


Invasives Costly for California Marinas

 Egeria densa. Credit: Lara Gudmundsdottir,

Egeria densa. Credit: Lara Gudmundsdottir,

     In the Sacramento-San Joaquin Delta, egeria and water hyacinth are costly for marinas. Collecting around slips, docks and other structures, the invasives grow throughout the summer season, and by late summer are blocking entrances, damaging propellers and even shutting down marinas.

     Herbicides are not an option for marina operators in the area, and so removal and control is done manually. This involves simply removing infestations by hand, or placing booms to "fence out" nascent infestations (booms, however, come with restrictions on their location).

     A survey of around 50 marinas has shown that water hyacinth cost marinas about $30,000 in lost business annually, with an additional $20,000 in treatment costs.

     For the full article from click here or on the link available below.

Clearcast in Parts of Seneca River

 A section of the Seneca. Credit: MTBradley -

A section of the Seneca. Credit: MTBradley -

     In an effort to curb the invasive water chestnut in Seneca River, officials will be applying Clearcast and Rodeo into the river near Baldwinsville and the Three Rivers areas from July 25 to July 29.

     Rooted plants, water chestnut is a thick plant that is capable of hindering navigation and water flow, crowding native plants and reducing fish habitat.

     Signs will be posted in the areas while they are being treated in order to inform the public.

     The full article from is available here or through the link available below.