Phosphorous Acid
Action/Use:
- Fungicide
Use:
For control of various diseases on agricultural and commercial turf.
Chemistry
Class: Inorganic salt.
Properties: Clear to blue colored water-based liquid. Specific gravity 1.34; pH 5.5-6.
Mode of Action / Resistance Management
Taget Site: unknown
Mode of Action: unknown mode of action
Action Group: FRAC Code 33
Comments / Risk Notes: Low risk
Registration
Outside U.S.A.: Agri-fos* in Australia, Columbia, Egypt, Indonesia, Jordon, Kenya, Syria, Thailand, UAE, and Uruguay.
Environmental Guidelines
Water Solubility: Soluble
Hazards: Fish, Bird, Bee: Practically nontoxic
Safety Guidelines
Signal Word: CAUTION
Toxicity Class: III
Toxicity: (Rat): Oral LD50 >5000 mg/kg. (Rat): Dermal LD50 >5000 mg/kg
Spill Control/cleanup: Contain spill with absorbent material and dispose in sealed container
Product/waste Disposal: Dispose in accordance with federal, state, and local regulations
Handling/storage Cautions: Store above 0°C. Do not apply above 28°C
Suppliers and Branded Products
Basic Producers:
ArborSystems (Whippet*)
JH Biotech, Inc. (Fosphite*)
Nufarm Americas Inc. (Magellan*, Phostrol*)
Plant Food Systems, Inc. (K-Phite*)
Plant Protectants, LLC (Fungi-Phite*)
Formulators' Trade Names:
Agri Sciences Co., Ltd. (Agriguard*, Agrizate*)
Cleary Chemical LLC (Alude*)
Villa Crop Protection (Phosphite*)
Zelam Ltd. (Foschek*)
Discontinued Names:
Topaz*
