Dithiopyr
Action/Use:
- Herbicide
Use:
Selective control of many grasses and certain annual broadleaf weeds. Dimension* and Dictran* for turf. Scoop* for rice and other crops.
Identification
Common Name(s): Dithiopyr (ANSI, BSI, ISOE)
Chemistry
Class: Pyridine.
Properties: (a.i.) Pale, yellow, crystalline solid; faint sulfur-like odor. Melting point 65°C. Vapor pressure (25°C) 4 x 10-6 mm Hg.
Mode of Action / Resistance Management
Chemical Group: Pyridine
Mode of Action: Microtubule assembly inhibition
Action Group: HRAC Group K1; WSSA Group 3
Registration
Outside U.S.A.: Dictran* in Japan. Scoop* in Egypt, Korea.
Environmental Guidelines
Hazards: Tech: Fish: LC50 (96 h) 0.7 mg/l (bluegill). Bird: Oral LD50 >2250 (bobwhite quail). Bee: Dermal LD50 81 µg/bee (honeybee)
Water Solubility: 0.7 ppm
Safety Guidelines
Signal Word: WARNING
Toxicity Class: II
Toxicity: (Rat): Oral LD50 >5000 mg/kg. Dermal LD50 >5000 mg/kg
Handling/storage Cautions: Store abovd 32°F
Suppliers and Branded Products
Basic Producers:
Dow AgroSciences LLC (Dictran*, Dimension*, Scoop*)
Nufarm Americas Inc. (Dynamo*)
Discontinued Names:
Kalcorn*
Lyton*
