Herbicides

harpoon granular

Harpoon® Granular Aquatic Herbicide

Treat from the bottom up! Granules sink down to effectively control bottom-growing copper sensitive aquatic species.

No general water use restrictions applicable at label rates.*

  • Available in 40 pound bags
  • Active ingredients: contains 3.41% elemental copper in the form of copper-ethylenediamine complexes (9.87%)
  • Dosing rates vary by species and density between 40 to 80 pounds per acre-ft.
  • Broadcast evenly using spreader, blower or hand scoop
  • US EPA Registration No. 8959-55

Harpoon® Granular Aquatic Herbicide Product Information Sheet

Harpoon® Granular Case Study

harpoon liquid

Harpoon® Aquatic Herbicide

Controls Hydrilla, Naiads, Coontail, Elodea, Water Lettuce, Water Hyacinth, Giant Salvinia and other species that have a sensitivity to copper absorption. 

No general water use restrictions are applicable at label rates.*

  • Available in 2.5 (2 units in a case), 30 and 275 gallon containers
  • Active ingredients: 24.0% copper-ethylenediamine complex (8% metallic copper equivalent)
  • Dosing rates vary by species and density between 1.7 and 3.3 gallons per acre-ft.
  • Dilute and spray
  • US EPA Registration No. 8959-54

Harpoon® Aquatic Herbicide Product Information Sheet

Weedtrine® D

Weedtrine® D Aquatic Herbicide

An aquatic herbicide that controls submersed, floating and emergent weeds including duckweed. A surfactant is necessary when using this product with any weed on or above the water surface. 

Water use is restricted for irrigation, drinking (animal or human) and swimming.*

  • Available in 1 gallon (4 units in a case) and 5 gallon containers
  • Active ingredient: 8.53% diquat dibromide
  • Dosing rates:
    • Submersed weeds: rates vary by species between 5 and 10 gallons per surface acre of vegetation
    • Floating weeds: rates vary by season between 2.5 and 3.75 gallons per surface acre of vegetation
    • Marginal weeds: 5 gallons per surface acre of vegetation
    • Duckweed: 5 gallons per acre of vegetation
  • Dilute and spray
  • Use with AB™ Brand Adjuvant on any weed on or above the water surface
  • Tank mix with Cutrine-Plus® Algaecide for tough-to-kill weeds
  • US EPA Registration No. 8959-9

*Some States may require permits or restrict the use of this product. Check with your local authorities.