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Lake Environment Committee

Maintaining the environmental well being of Lake Gaston

Results and analysis of the 2020 Lake Gaston Vegetation Survey have been made available. This annual survey has been funded by the Lake Gaston Weed Control Council (LGWCC) since 2012. This is a collaborative effort between volunteers of the Lake Gaston Association (LGA) and staff from North Carolina State University (NCSU). Both point and sonar surveys cover the entire 350 miles of shoreline. Jessica R. Baumann, NCSU Extension Associate gave a presentation of the results to the LGA board at our April 7th meeting.

35 teams of 67 volunteer’s surveyed 4,487 sites, while. NCSU staff surveyed 881 sites.  In total 5,368 sites were surveyed in 212 hours. This level is comparable to previous annual surveys.

71% of sites had some form of aquatic vegetation. Water willow makes up the largest percentage of vegetation (45%) followed by Lyngbya (17%) and chara/nitella (7%). While water willow and chara/nitella are native and considered beneficial species, Lyngbya is considered noxious.

Hydrilla is estimated to be found in small patchy sites totaling only 104 acres. This compares to 1,541 acres found in 2012. Results from the December tuber bank study also indicates a drastic decrease from samples collected in 2012.

Lyngbya acreage has been steadily increasing since 2014, now estimated to cover 1,194 acres. Few areas of the lake are void of Lyngbya. NCSU research efforts funded by the LGWCC continue in the development of an effective Lyngbya management protocol.

The Lake Gaston Weed Control Council (LGWCC) continues to fund herbicide treatments based upon recommendations from a Technical Advisory Group with support from the Lake Gaston Stakeholders Group.  Aqua Services, Inc. www.asilakemanagement.com  was awarded the application contract for Lyngbya Treatments which will increase to +/-300 acres in 2021.  PLM Lake and Land Management Corp. www.plmcorp.net  was once again selected as the application contractor for Hydrilla treatments. No specific treatment areas have been designated at this time. Should infestations occur, treatments will be scheduled.

 Treatments for Lyngbya are scheduled : April 19th-23rd, and every +/-30 days through September

 

The products to be used are Captain XTR, Cutrine Ultra, and AMP.  There are no swimming, irrigation, or fish consumption restrictions. Maps showing the specific treatment areas can be found at: http://www.lgwcc.org/.

 

The Lake Gaston Weed Control Council (LGWCC) continues to fund herbicide treatments based upon recommendations from a Technical Advisory Group with support from the Lake Gaston Stakeholders Group.  PLM Lake and Land Management was once again selected as the application contractor for these treatments in 2020.

As of June 17, treatments for Hydrilla have not been scheduled. The treatment area will be in Lizard Creek north of River Road.

Treatments for Lyngbya are scheduled :

April 27, 28, 29

May 26, 27, 28

June 23, 24, 26

July 21, 22, 23  August and September dates TBD

Maps showing the specific treatment areas can be found at: http://www.lgwcc.org

POSTPONED


The Dominion Energy public meeting to receive input on its Shoreline Management Plan scheduled at 9:30 AM on April 14, 2020 at 100 Oakwood Avene, Roanoke Rapids was postponed.

No information on a rescheduled time is available.