By keeping irrigation systems clear of unwanted aquatic weeds, Alligare’s Magnacide H helps providers deliver a continuous supply of water to their customers without interrupting irrigation.


Performance Highlights

  • Environmentally friendly and does not accumulate in crops, soil, or groundwater
  • Offers a closed application process that protects the applicator and environment
  • Weeds disintegrate with no removal or disposal required and canal capacity is restored within 24 hours
  • Water and soil are left residue-free with no corrosive or damaging impact on irrigation equipment and structures
  • Biodegrades into carbon dioxide and water
  • Registered for use in Australia, Canada, Chile, South Africa, and the United States
  • Can be applied while irrigation water is in use

States registered: AZ, CA, CO, ID, MT, NE, NV, NM, OR, SD, UT, WA, WY

All certified applicators participating in the application during setting up and breaking down of application of equipment and during visual inspection must wear:

  • Coveralls over long-sleeved shirt and long pants
  • Shoes and socks
  • Chemical-resistant gloves made of butyl rubber
    • A NIOSH-approved full face respirator with either organic-vapor removing cartridges with a prefilter approved for pesticides (MSHA/NIOSH approval number prefix TC-23C)
    • A canister approved for pesticides (MSHA/NIOSH approval number prefix TX-14G)

  • Water starwort
  • Water stargrass
  • Blue-green algae
  • Waterweed
  • Hornwort
  • Stonewort
  • Eurasian watermilfoil
  • Naiad
  • Green algae
  • Pondweed
  • Leafy pondweed
  • Freshwater diaton

See product label for complete list.

  • irrigation canals and systems
  • reservoirs

See product label for complete list.