Gateway on Pesticide Hazards and Safe Pest Management

Potassium Phosphite

Mono- and di- potassium salts of phosphorous acid

General Information

• Product Names:

  Agri-Fos Systemic Fungicide (Liquid Fertilizer Pty. Ltd. [Trading as Agrichem Manufacturing Industries Pty Ltd])
  Agri-Fos Systemic Fungicide Plus (Liquid Fertilizer Pty. Ltd. [Trading as Agrichem Manufacturing Industries Pty Ltd])
  Appear (Syngenta)
  Appear Fungicide II (Syngenta Crop Protection, LLC)
  Arborfos (JJ Mauget)
  Arborfos hp (JJ Mauget)
  Calirus 150 (ICL-IP America, Inc.)
  Catamaran (Luxembourg-Pamol, Inc.)
  Confine Extra (Winfield Solutions, Llc)
  Drexel Phiticide (Drexel Chemical Company)
  Es tc006a (Bayer Cropscience LP)
  First Choice Phortress Fungicide (Omex Agrifluids, Inc.)
  Foli-r-fos 400 (Bayer Cropscience LP)
  Foli-r-fos 400 Fungicide (Bayer Cropscience LP)
  Fosphite Fungicide (JH Biotech Inc.)
  Freshprotect (Save Foods, Ltd.)
  Fungi-phite (Verdesian Life Sciences U.S., Llc)
  Fungi-phite ca (Verdesian Life Sciences U.S., Llc)
  Fungi-phite df (Verdesian Life Sciences U.S., Llc)
  Fungi-phite df mup (Verdesian Life Sciences U.S., Llc)
  Fungi-phite mup (Verdesian Life Sciences U.S., Llc)
  Hm-0210-a Systemic PGR & Fungicide (Helena Agri-Enterprises, Llc, D/B/A Helena Chemical Comp)
  Inosco (Syngenta Crop Protection, Llc)
  Jetphiter (Aquatrols Corporation of America)
  K-phite 7lp Fungicide (Plant Food Systems, Inc.)
  Lbg-61 (Luxembourg-Pamol, Inc.)
  Lbg-w (Luxembourg-Pamol, Inc.)
  Lbg-w-mup (Luxembourg-Pamol, Inc.)
  Lpi-37 (Luxembourg-Pamol, Inc.)
  Manco-Phite df (Verdesian Life Sciences U.S., Llc)
  Maxiphite® Fungicide (Plant Food Systems, Inc.)
  Oxiphos (Biosafe Systems, Llc)
  Pfs 516 Systemic Fungicide Bactericide (Plant Food Systems, Inc.)
  Phos Pro Fungicide (Grow More, Inc.)
  Phospho-jet (Arborjet, Inc.)
  Phosphorous acid Systemic Fungicide (Winfield Solutions, Llc)
  Phostrol Agricultural Fungicide (Nufarm Americas, Inc.)
  Potassium Phosphite Technical (Luxembourg-Pamol, Inc.)
  Prophyt (Luxembourg-Pamol, Inc.)
  Prophyt-phc (Luxembourg-Pamol, Inc.)
  Prosoy ppt (Luxembourg-Pamol, Inc)
  Rampart Fungicide (Loveland Products, Inc.)
  Reliant Systemic Fungicide (Quest Products Llc)
  Resist (Actagro, Llc)
  Ssystem-K Blue (Agro-K Corporation)
  Vital (Luxembourg-Pamol, Inc.)
  Vital Green Xtra (Luxembourg-Pamol, Inc.)
  Vital-sign (Luxembourg-Pamol, Inc.)
  Vitalonil (Luxembourg-Pamol, Inc.)
  Whippet Fungicide (Arborsystems, Inc.)

• Chemical Class: Systemic Phosphonate Fungicide
• Uses: To control a broad spectrum of diseases on large variety of corps; control of several foliar and soil-borne diseases of field crops, grapes, herbs, orchards, pecans and vegetables.
  
• Alternatives: Organic agriculture, Organic lanwn care
• Beyond Pesticides rating: Toxic

Health and Environmental Effects

• Cancer: Not documented
• Endocrine Disruption: Not documented
• Reproductive Effects: Not documented
• Neurotoxicity: Not documented
• Kidney/Liver Damage: Not documented
• Sensitizer/ Irritant: No (27, 142)
• Birth/Developmental: Not documented
• Detected in Groundwater: Not documented
• Potential Leacher: Not documented
• Toxic to Birds: Not documented
• Toxic to Fish/Aquatic Organisms: Possible (142)
• Toxic to Bees: Not documented

Additional Information

• Regulatory Status:
  • Mono- and di-potassium salts of phosphorous acid (076416) Fact sheet (10/01/1998)
• Supporting information:
  • PAN Pesticides Database: PAN (Pesticide Action Network)