Butafenacil
Action/Use:
- Herbicide
Use:
Fur use in citrus, fruit orchards, noncropland, and vineyards. Also used as a cotton defoliant.
Identification
Common Name(s): Butafenacil (BSI, ISOPA)
Chemistry
Class: Pyrimidindione.
Properties: Fine white powder, with a slight odor. Melting point 113°C.
Mode of Action / Resistance Management
Chemical Group: Pyrimidindione
Mode of Action: Inhibition of protoporphyrinogen oxidase (PPO)
Action Group: HRAC Group E; WSSA Group 14
Registration
U.S.A.: Not registered.
Environmental Guidelines
Hazards: Fish: LC50 (96 h) 3.9 mg/l (trout); (48 h) >8.6 mg/l (Daphnia). Bird: Oral LD50 2250 mg/kg (bobwhite quail, mallard duck); Dietary LC50 5620 mg/kg (bobwhite quail, mallard duck). Bee: LD50 (oral) >20 µg/bee; (contact) >100 µg/bee
Water Solubility: 10 mg/l (25°C)
Safety Guidelines
Signal Word: CAUTION
Toxicity Class: III
Toxicity: (Rat): Oral LD50 >5000 mg/kg; Dermal LD50 >2000 mg/kg; Inhalation LC50 >5100 mg/m3
