Norflurazon
Action/Use:
- Herbicide
Use:
Preplant incorporated, preemergence, or split applications to control grasses and broadleaf weeds in tree, nut and vine crops, peanuts, cotton, field-grown nursery stock and noncropland; preemergence control of grasses, sedges, and broadleaf weeds in cranberries.
Identification
Common Name(s): Norflurazon (ANSI, BSI, ISOE, WSSA); ; Norflurazone (ISOF)
Chemistry
Class: Pyridazinone.
Formula: C12H9CIF3N3O.
Properties: White odorless crystalline solid. Melting point 177 ± 3°C. Vapor pressure 2 x 10-8 torr at 20°C. Stable under alkaline and acid conditions, non-corrosive, susceptible to light. Solubility (25°C): acetone 50 g/l, ethanol 142 g/l, xylene 2.5 g/l.
Mode of Action / Resistance Management
Chemical Group: Pyridazinone
Mode of Action: Bleaching inhibition of carotenoid biosynthesis at the phytoene desaturase step (PDS)
Action Group: HRAC Group F1; WSSA Group 12
Environmental Guidelines
Hazards: Fish, Invertebrates: Slightly toxic. Bird, Bee: Nontoxic
Water Solubility: 28 ppm
Safety Guidelines
Signal Word: CAUTION
Toxicity Class: III
Toxicity: (Rat): Oral LD5010,000 mg/kg. (Rabbit): Dermal LD50 >20,000 mg/kg. In 90-day feeding tests, the "no-effect" level was 50 mg/kg/day (rat); 12.5 mg/kg/day (dog)
Handling/storage: Stable
Spill Control/cleanup: Control spill at its source and contain to prevent it from spreading, contaminating soil, or entering sewage and drainage systems or any body of water. Clean up immediately. Solid: Sweep up material and lace in compatible disposal container. Liquid: Cover entire spill with absorbing material and place into compatible disposal container. Scrub area with hard water detergent. Pick up wash liquid with additional absorbent and place in container. Seal container and arrange for disposition
Product/waste: Do not reuse product containers. Dispose of product containers, waste containers, and residues according to local, state, and federal health and environmental regulations
Protective Clothing: Long-sleeved shirt and long pants. Waterproof gloves. Shoes plus socks.
Suppliers and Branded Products
Basic Producers:
AMVAC Chemical Corp. (Evital*)
Syngenta (Predict*, Solicam*, Zoliar*, Zorial Rapid 80*)
