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Crop Protection Database

Fenvalerate

Action/Use:
  • Insecticide
Use: Belmark*, Sumicidin* for Coleoptera, Diptera, Hemiptera, Lepidoptera, Orthoptera on Christmas tree plantings, pine seed orchards, forest tree nurseries, noncropland (except public land such as forests, parks, recreational areas).
Identification
Common Name(s): Fenvalerate (ISO, BSI)
Chemistry
Class: Pyrethroid.
Properties: Molecular weight 419.9. At 23°C: clear viscous yellow liquid, mild odor; density 1.17 g/ml. Vapor pressure at 25°C, 2.8 x 10-7 mm Hg. Moderately soluble in a range of organic solvents. Soluble in acetone, alcohol, ether, xylene, kerosene. More stable in acidic solution than in alkaline solution. High thermal stability. Relatively nonvolatile. Stable to heat, moisture, most organic solvents except alcohols.
Fenvalerate
Mode of Action / Resistance Management
Chemical Group: Pyrethroid
Mode of Action: Sodium channel modulator
Action Group: IRAC Group 3
Registration
Outside U.S.A.: Belmark*, Azomark* (BASF Corporation).
Environmental Guidelines
Hazards: Fish: LC50 0.42 ppb (96 h) (bluegill). Bird: Oral LD50 9932 mg/kg (mallard). Dietary: LC50 >10,000 ppm (quail); 5500 ppm (mallard)
Soil Particle Adsorption: Field studies indicate residues remain in 0"-4" layer with half-life of 1-2 months. After 183 days, residues were at negligible or undetectable levels. Confined and field rotational crop data show residues likely to occur in root crops at intervals of < 9 months
Water Solubility: Insoluble
Safety Guidelines
Signal Word: WARNING
Toxicity Class: II
Toxicity: DMSO (Rat): Oral LD50 451 mg/kg. Dermal >5000 mg/kg. (Rabbit): Dermal LD50 2500 mg/kg
Handling/storage Cautions: Avoid eye, skin, mouth contact. Store in original containers away from food and feed
Protective Clothing: Chemical-resistant gloves. Protective eyewear.
Suppliers and Branded Products
Premix Products:
Discontinued Names:
Agrocidin*
Basu*
Deltan*
Fenachem*
Fenpaz*
Fensul*
Khatau Fen*
Milfen*
Pydrin*
Sang-Nong Dimfen*
Sang-Nong Fenbis*
Stalker*