Metoxuron
Action/Use:
- Herbicide
Use:
For use in cereals and carrots against black grass, silky bentgrass, wild oat, ryegrass, and most annual broadleaf weeds. Winter and some spring wheats, winter barley at early/late postemergence. Most winter wheat, winter barley, and some spring wheat varieties show a high tolerance. Pre- and postemergence on carrots. Purivel* for preharvest defoliation of hemp, flax, potatoes and tomatoes.
Identification
Common Name(s): Metoxuron (ISO, BSI)
Chemistry
Class: Urea.
Formula: C10H13CIN2O2.
Properties: Colorless, odorless, crystalline powder. Melting point 126°-127°C. Vapor pressure 3.2 x 10-8 Torr at 20°C. Soluble in acetone, hot ethanol. Moderately soluble in benzene, toluene.
Mode of Action / Resistance Management
Chemical Group: urea
Mode of Action: inhibition of photosynthesis at photosystem II
Action Group: HRAC Group C2; WSSA Group 7
Registration
U.S.A.: Not registered.
Environmental Guidelines
Hazards: Fish: Slightly toxic. Bee: Nontoxic
Water Solubility: 678 mg/l at 24°C
Safety Guidelines
Signal Word: CAUTION
Toxicity Class: III
Toxicity: (Rat): Oral LD50 3200 mg/kg. Dermal >2000 mg/kg. No significant abnormalities for chicks fed 1250 mg/kg (42 day)
Suppliers and Branded Products
Basic Producers:
Syngenta (Dosaflo*, Dosanex*, Purivel*)
Formulators' Trade Names:
Bayer CropScience (Deftor*)
United Phosphorus Ltd. (Kaabu*)
Discontinued Names:
Dosagran*
Dosamix*
Investt*
Sulerex*
