Benzobicyclon
Action/Use:
- Herbicide
Use:
Controls annual and prennial paddy weeds in direct-seeded or transplanted rice.
Identification
Common Name(s): Benzobicyclon (BSI, ISOPA); ; Benzobicyclone (ISOF)
Chemistry
Formula: C22H19CIO4S2.
Properties: Slightly yellow, odorless crystals. Melting point 187.3°C. Vapor pressure <5.6 x 10-2 mPa (25°C).
Mode of Action / Resistance Management
Mode of Action: Bleaching inhibition of 4-hydroxyphenyl-pyruvate-dioxygenase (4-HPPD)
Action Group: HRAC Group F2; WSSA Group 27.
Environmental Guidelines
Hazards: Fish: LC50 (48 h) >10 ppm (carp); LC50 (3 h) >1 ppm (Daphnia). Bird: LD50 >2250 mg/kg (bobwhite quail, mallard duck). LC50 (5 d) >5620 mg/kg (bobwhite quail, mallard duck). Bee: LD50 (Oral, Contact) >200 µg/bee
Water Solubility: 0.052 mg/l at 20°C
Safety Guidelines
Toxicity: (Rat): Oral LD50 >5000 mg/kg. Dermal LD50 >2000 mg/kg. Inhalation LC50 (4 h) >2720 mg/m3. Not a skin irritant
Suppliers and Branded Products
Basic Producers:
