Diafenthiuron
Action/Use:
- Acaricide/Miticide
- ;
- Insecticide
Use:
Pegasus* for use on cotton. Polo* for use on cotton and vegetables.
Identification
Common Name(s): Diafenthiuron (ISO, BSI)
Chemistry
Formula: C23H32N2OS.
Properties: Form: White powder. Melting point 144.6°-147.7°C. Vapor pressure <2 x 10-3 mPa (25°C). Solubility at 25°C: acetone 320 g/l, ethanol 43 g/l, n-hexane 9.6 g/l, n-octanol 26 g/l, toluene 330 g/l.
Mode of Action / Resistance Management
Mode of Action: Inhibitor of oxidative phosphorylation, via distruption of ATP formation (inhibitor of ATP synthase)
Action Group: IRAC Group 12
Registration
Outside U.S.A.: Pegasus*: New South Wales, Queensland, and western Australia. Polo*: Asia Pacific, Latin America.
Environmental Guidelines
Hazards: Fish: LC50 (96 h) 0.0038 mg/l (carp); 0.0007 (rainbow trout); 0.0013 (bluegill sunfish); (48 h) <0.5 mg/l (Daphnia). Bird: Acute oral LD50 >1500 mg/kg (bobwhite quail, mallard duck). Dietary LC50 (8 d) >1500 mg/kg (bobwhite quail, mallard duck). Bee: Toxic; LD50 (48 h) (oral) 2.1 µg/bee; (contact) 1.5 µg/bee
Water Solubility: 0.06 mg/l (25°C)
Safety Guidelines
Toxicity: (Rat): Oral LD50 2068 mg/kg. Dermal LD50 >2000 mg/kg. Inhalation LC50 (4 h) 0.558 mg/l air
Suppliers and Branded Products
Basic Producers:
Agro-Care Chemical Industry Group Limited (Pegastar*)
Hualong Chemical Industry Co., Ltd. (Negri*)
Levant Overseas Developments Ltd. (LOD) (Akarilod*)
Syngenta (Pegasus*, Polo*)
Wangs Crop-Science Co., Ltd. (Defense*)
Formulators' Trade Names:
Hektas Ticaret T.A.S. (Diapol*)
Ivorychem Pte. Ltd. (Duparc*)
SAFA TARIM A.S. (Poleron*)
B.V. Industrie- & Handelsonderneming Simonis (Wopro-diafenthiuron*)
Premix Products:
+ Profenofos
- Dicare* — Syngenta
Discontinued Names:
Troll*
