... Description:NOMENCLATURECommon name: terbuthylazineIUPAC name: N2-tert-butyl-6-chloro-N4-ethyl-1,3,5-triazine-2,4- ... controlling a wide range of weeds, at rates of 0.6-3 kg a.i./ha; high rates are only ... rainbow trout 3.8-4.6, bluegill sunfish 7.5, carp and catfish 7.0 mg/l.Daphnia: LC50 (48 ... mg/l.Algae: EC50 (72 h) for Scenedesmus subspicatus 0.016-0.024 mg/l.Bees: LD50 (oral and contact) ...