Oryzalin
Action/Use:
- Herbicide
Use:
A selective preemergence herbicide for annual grasses, broadleaf weeds in bearing and nonbearing fruit trees, nut trees, vineyards, established bermudagrass turf, and established ornamentals.
Identification
Common Name(s): Oryzalin (ANSI, ISO, BSI, WSSA)
Chemistry
Class: Dinitroaniline.
Properties: Pure: yellow-orange crystalline solid. Melting point 141-142°C. Vapor pressure is 1 x 10-7 mm Hg at 25°C. Surflan* A.S.: Bright orange opaque liquid; slight aromatic odor. Soluble in organic solvents such as acetone, ethanol, methanol, acetonitrole; slightly soluble in benzene, xylene; insoluble in hexane.
Mode of Action / Resistance Management
Chemical Group: Dinitroaniline
Mode of Action: Microtubule assembly inhibition
Action Group: HRAC Group K1; WSSA Group 3
Environmental Guidelines
Hazards: Fish: LC50 2.88 mg/l (bluegill). Bird: (Oral) >1000 mg/kg (hen)
Water Solubility: 2.5 ppm
Safety Guidelines
Signal Word: CAUTION
Toxicity Class: III
Toxicity: (Rat): Oral LD50 10,000 mg/kg
Handling/storage Cautions: Store above 40°F. If frozen, warm and agitate
Suppliers and Branded Products
Basic Producers:
Formulators' Trade Names:
Premix Products:
+ Benefin
- Surflan* XL — United Phosphorus Inc.
- XL 2G* — Helena Chemical Co.
+ Diuron
- Surflan* D — United Phosphorus Ltd.
+ Trifluralin
- Yield* — United Phosphorus Ltd.
Discontinued Names:
Snapshot*
