and maize (armyworms). Also for control of larvae of mushroom flies in mushroom casing (1 g/m2); mosquito larvae (25-100 g/ha); fly larvae in animal housings (0.5-1 g/m2 surface); and locusts and grasshoppers (60-67.5 g/ha). Formulation types GR; HN; OF; SC; UL; WG; WP.
Form Colourless crystals; (tech., off-white to yellow crystals). M.p. 228 °C; (tech., 210-230°C, decomp.) V.p. 1.2 ?10-4 mPa (25 °C) (gas saturation method) KOW logP = 3.89 S.g./density 1.56 Solubility In water 0.08 mg/l (pH 7, 25°C). In n-hexane 0.063, toluene 0.29, dichloromethane 1.8, methanol 1.1 (all in g/l, 20 °C). Stability Light-sensitive when in solution, but stable to sunlight as a solid. <0.5% decomposition after 1 d storage at 100 °C; <0.5% after 7 d at 50 °C. In aqueous solution (20 °C), stable at pH 5 and 7 (DT50 >150 d), at pH 9 DT50 42 d.
Mode of Action
Non-systemic insect growth regulator with contact and stomach action. Acts at time of insect moulting, or at hatching of eggs.
Oral Acute oral LD50 for rats and mice >4640 mg/kg. Skin and eye Acute percutaneous LD50 for rabbits >2000, rats >10 000 mg/kg. Not a skin irritant; slight eye irritant (rabbits). Not a skin sensitiser (guinea-pigs). Inhalation LC50 for rats >2.88 mg/l.