TLAC’s 2012 Invasive Aquatic Vegetation Program

Posted by on Sep 15, 2012 in Programs | Comments Off on TLAC’s 2012 Invasive Aquatic Vegetation Program

TLAC’s 2012 Invasive Aquatic Vegetation Program

More than 150 acres of Hydrilla were treated with herbicides. A fall survey indicated that approximately 1000 acres of the lake are vegetated by non-native aquatic species (Hydrilla, Brazilian elodea, Curlyleaf pondweed, and brittle naiad). The total cost of this year's program exceeded $153,000. All of the funding was provided by the three counties which border Smith Mountain Lake (Bedford, Franklin and Pittsylvania).

Late this summer, with the increasing number of infested acres, and the increasing cost of trying to manage invasive aquatic vegetation with herbicides, another method was considered. TLAC asked the Virginia Department of Game and Inland Fisheries (VDGIF) for approval to utilize triploid (sterile) grass carp for the purpose of controlling invasive aquatic vegetation beginning in 2013. VDGIF's approval was received and TLAC is taking the steps to introduce triploid (sterile) grass carp to Smith Mountain Lake next spring. We are encouraged by the success that other lakes (e.g. Claytor Lake, Lake Norman, etc.) have had with this method; the introduction of the carp addressed the invasive aquatic vegetation as desired and did not harm their fisheries.

TLAC's Tripliod (sterile) Grass Carp Management Plan is available on this website.

If you have questions about TLAC's Invasive Aquatic Vegetation Program, please contact Pam Dinkle, Lake Management and Project Coordinator at