0Weed Harvesting Schedule*
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(subject to change without notice)

2010 Harvesting Update

At this time, due to fiscal constraints, there are no plans to conduct a weed harvesting program in 2010.  The Lake Hopatcong Commission applied for a grant through the I BOAT NJ Program administered by the New Department of Transportation (DOT) Office of Maritime Resources to fund the harvesting operation.  In February, 2010 the Commission received notification that due to concerns regarding the economic future of the I BOAT NJ Program, all grant proposals submitted are being tabled at this time until further notice. 

2009 Harvesting Update

The weed harvesting operation began on July 20 and due to very limited funding concluded on September 9. 

JUNE 10, 2009 PRESS RELEASE - COMMISSION RECEIVES ASSISTANCE TO OPERATE SMALL-SCALE WEED HARVESTING EFFORT

Prevent Water Chestnut from spreading to Lake Hopatcong

Help prevent the spread of an extremely aggressive, non-native aquatic plant called Water Chestnut that is rapidly taking over nearby Lake Musconetcong. First step is to educate yourself, your family and friends and everyone that enjoys Lake Hopatcong on how to identify the plant.  Second, if you find the plant on the Lake Hopatcong, contact the Lake Hopatcong Commission immediately at 973-601-1070.  View photos of the devastation caused by Water Chestnut on Lake Musconetcong and learn more ways to prevent the spread to Lake Hopatcong.

Weed Disposal

Each of the four lake municipality (Jefferson, Mount Arlington, Hopatcong and Roxbury) have different weed disposal arrangements for its residents.  Check with your local municipality for details. 

Weed Harvesting on Lake Hopatcong

The 2008 weed harvesting program began the week of May 26.  The harvesting teams try to reach as many locations as possible during the season. 

During harvesting season, two harvesting crews are deployed.  Many shallow sections of Lake Hopatcong are susceptible to an abundant density of rooted aquatic plants, commonly referred to as weeds.  To harvest these areas, the harvester operator cuts the weeds toward the center of an  infested area typically closer to the middle of the lake and will remove weeds closer to the shoreline as the harvesting is completed in that area.   Before moving to another section of the lake, the operator will pick up floating weeds (floaters) with the harvester near the shoreline.  The operator will not harvest weeds near rocks, in shallow water or near bulkheads. 

When cutting weeds, the harvesters move at less than 5 mph and move considerably slower if the water is choppy or if it is windy.  As an example, on a beautiful sunny day with no wind or waves, it takes the harvester approximately 15 minutes just to travel from the Point Pleasant in Hopatcong to the beach at the State Park when the harvester is not cutting weeds.  Under the same conditions, if the harvester was cutting one pass from Point Pleasant to the State Park beach, it would take at least 30 minutes to harvest that distance.

In the 2008, approximately 1,100 tons of aquatic vegetation was removed from the Lake.  Due to the 60-inch drawdown of the lake which was scheduled to begin the day after Labor Day, the harvesting operations concluded on September 17, 2008 which was contingent upon the water level and/or the amount of weeds being removed.

During the off season, the LHC field staff maintains and repairs the harvesting equipment.  Additionally, through shared service agreements with the local municipalities and County of Sussex, the field staff clean and maintain catch basins within the Lake Hopatcong Watershed.

Click here to learn more about the benefits of weed harvesting.  To learn why the weed growth in 2006 was so heavy, click here. 

Are you interested in identifying the types of native and invasive aquatic plants found in Lake Hopatcong or to learn about notorious invasive species currently not found in the lake?  If so, the Identification Manual of Aquatic Plants in Lake Hopatcong and Potential Future Invasive Species is a great learning tool. 

Before Harvesting Picture furnished by a Woodport Cove homeowner.	After Harvesting Homeowner sent before and after photos to former Governor McGreevey in support of continual funding for Commission.	Weed Growth Under ideal conditions, some weeds can grow as much as 14 inches in length in a single week.
Eurasian Water Milfoil The plant stems commonly grow to lengths of 6 to 9 feet and is one of the most common weeds found in Lake Hopatcong.	Lily Pads Only limited sections of lily pads are harvested. Others remain for fish habitat and protection.	Phosphorous fuels weed growth Use lake-friendly, phosphorous-free fertilizer to reduce weed growth.
Early Start Weather permitting, harvesters head out early each weekday morning.	Harvester Fleet The LHC has a fleet of six harvesters and two transport barges.	Can it Fit? All harvesters were specifically designed to fit under Brady Bridge.
Less Weed Growth River Styx Cove has significantly less weed growth now than it did when this photo was taken on June 6, 2003.	Harvesting Access Hopatcong State Park is one of eight access locations used to harvest Lake Hopatcong.	Weed Disposal Weeds disposed at Morris County MUA are used to make top soil.

Updated:  03/02/2010