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Crop Protection Database

Esfenvalerate

Action/Use:
  • Insecticide
Use: For blueberries and caneberries (except California); almond, apple, artichoke, beans (dry, snap), broccoli, cabbage, carrot, cauliflower, collard, corn, cotton, cucumber, eggplant, filbert, grain sorghum, kiwi, kohlrabi (Texas), lentil, lettuce (head), melon, mustard greens, peanut, pear, peas (dry, green), pecan, pepper, potato, pumpkin, radish, soybean, squash (summer, winter), sugar beets, sugarcane, sunflower, stone fruit, tomato, walnut. Noncrop (excluding public lands such as forests, parks, recreational areas), Christmas tree plantings, conifer seed orchards, conifer plantations, forest tree nurseries.
Identification
Common Name(s): Esfenvalerate (ISO, BSI)
Chemistry
Class: Pyrethroid.
Properties: Asana* XL: Amber liquid. Specific gravity: 0.96. Boiling at 305°-332°F. Miscible and stable in up to equal volumes of nonvolatile refined vegetable oils. Sumi-alpha*: Molecular weight 419.9; Physical form at 23°C, viscous liquid or solid; Brown in color; Specific gravity at 26°C/4°C, 1.26; Vapor pressure at 25°C, 5 x 10-7 mm Hg. Soluble in acetone, chloroform, and xylene.
Esfenvalerate
Mode of Action / Resistance Management
Chemical Group: pyrethroids; pyrethrins
Mode of Action: sodium channel modulators
Action Group: IRAC Group 3A
Environmental Guidelines
Hazards: Fish: Highly toxic
Water Solubility: Asana* XL: Good emulsibility (0.025 lb. ai/gal.) in soft water (32 ppm as CaCo3), medium hard water (342 ppm as CaCo3), hard water (900 ppm as CaCo3). Sumi-alpha*: Insoluble in water
Safety Guidelines
Signal Word: WARNING
Toxicity Class: II
Toxicity: Asana* XL: (Rat): Oral LD50 458 mg/kg. (Rabbit): Dermal LD50 >2000 mg/kg. Sumi-alpha*: (Rat): Oral LD50 325 mg/kg. Dermal LD50 >5000 mg/kg
Handling/storage Cautions: Avoid contact with mouth, eyes, and skin. Store in original containers away from food and animal feed
Protective Clothing: Chemical-resistant gloves. Protective eyewear.
Discontinued Names:
Espenva*
Mirage*