Trade name(s) Karmex, Diuron, Direx, Parrot
Manufacturer(s) Corteva, Griffin Corp., Platte Chemical Co., Corteva, ADAMA
Formulation(s) 80% wettable powder, 80% dry flowable, 4 lb/gal water dispersible liquid
Remarks A substituted urea compound used preemergence to control annual weeds and certain perennials in noncropland and certain agricultural crops. Plant roots absorb and translocate material. It is foliar absorbed when used with a wetting agent. Diuron may persist several months in soil.
Water solubility 42 ppm
Storage conditions Stable at moderate temperatures.
Acute toxicity LD50 - 3,400 mg/kg
Action in plant Inhibits photosynthesis.
Site of action Group 7: photosystem II inhibitor
Chemical family Substituted urea
Koc Average is 480 mL/g