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Flumigard Herbicide - Aquatic Weed Killer

$79.95
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About Flumigard™ Herbicide

Flumigard™ Herbicide is a professional-grade, water-soluble granular treatment engineered for rapid control of floating and submerged pond weeds including duckweed, watermeal, hydrilla, milfoil, elodea, and algae. Its active ingredient, 51% flumioxazin, acts at the cellular level to prevent regrowth and restore water clarity within 7–14 days. Designed for convenience, the granules dissolve quickly in water, making application simple and effective without complex mixing or spraying. Unlike many competitors, Flumigard allows swimming and fishing immediately after treatment, so your pond remains usable while weeds are eliminated. Ideal for residential ponds, aquaculture, or golf course water features, Flumigard delivers broad-spectrum, visible results safely and efficiently.

 Cannot ship to: AK, CA, CT, D.C., HI, ME, NJ, NY, RI, VT, WA, or Canada

  • No downtime for swimming
  • Kills tough weeds fast
  • Granular, easy to apply
  • Product Type: Aquatic contact herbicide
  • Formulation: Water-soluble granules (WSG)
  • Active Ingredient: Flumioxazin – 51%
  • Controls: Duckweed, watermeal, hydrilla, milfoil, elodea, algae
  • Results: Visible in 7–14 days
  • Application: Granules applied to water surface or subsurface injection
  • Coverage: Up to 4 acres per container (depending on target and application rate)
  • Water Use Restrictions: None for swimming or fishing
  • Use Areas: Residential ponds, golf course lakes, aquaculture, retention basins
  • Shelf Life: 2–3 years if stored dry
  • EPA Registered: Yes