Reelfoot Lake Aquatic Weed Control ; TWRA

2026-11-03

1 . Contractor shall supply all labor , materials , and equipment required by these specifications to treat aquatic macrophytes on Reelfoot Lake as requested by the contract administrator . 2 . The Contractor shall treat , but is not limited to , the following species : a . Swamp Loosestrife ( Decodon Verticillatus ) b . American Frog ’ s Bit ( Lymnobium Spongia ) c . Marsh Pennywort ( Hydrocotyle Ranunculoides ) d . Curly - Leafed Pondweed ( Potamogeton Crispus ) Additional weeds to be treated shall be determined by the TWRA Reelfoot Lake Manager . 3 . Swamp Loosestrife , Frog ’ s Bit , and Marsh Pennywort are aquatic macrophytes that shall be treated with overcast applications of a mixture of aquatic herbicides . a . This mix shall consist of monopotassium salt of glyphosate ( such as Refuge or equivalent ) with a weight of 52 . 3 % at a rate of 64 oz . mixed with isopropylamine salt of imazapyr ( such as Habitat or equivalent ) with a weight of 27 . 8 % at a rate of 32 oz ., and a nonionic surfactant methylated seed oil ( such as SunEnergy or equivalent ) at a rate of 32 oz . These herbicides shall be mixed in 50 gallons of water and shall cover 1 acre of emergent and floating - leaved species . b . Herbicide 2 , 4 - D ( Dimethylamine Salt of 2 , 4 - Dichlorophenoxyacetic Acid ) 2 , 4 - D shall be applied at minimal of 0 . 5 gallon of 2 , 4 - D and 1 pint of surfactant per acre . All chemicals shall be approved by the U . S . EPA and shall have been proven environmentally safe for aquatic weed control . 4 . Curly - leafed pondweed shall be treated with Diquat or equivalent . a . The active ingredient in Diquat is diquat dibromide [ 6 , 7 - dihydrodipyrido ( 1 , 2 - a : 2 ’, 1 ’- c ). This herbicide shall be applied at minimal of 1 . 5 gallons of diquat dibromide and 3 gallons of copper per acre ...

Tennessee

2026-05-15