Trade name(s) Prism, Select, Envoy, Volunteer, Arrow, Section, Trigger, SelectMax, Shadow, Intensity

Manufacturer(s) Valent, Tenkoz, Albaugh, Arysta, Winfield, Loveland, ADAMA

Formulation(s) 0.94, 0.97 and 2 lb/gal emulsifiable concentrate

Remarks A selective postemergence grass-control herbicide. Controls most annual and perennial grasses except fine fescues. Using a crop oil concentrate enhances activity.

Storage conditions Stable

Acute toxicity LD50 - 2,920 mg/kg

Action in plant Inhibits growing points in grasses.

Site of action Group 1: acetyl CoA carboxylase (ACCase) inhibitor

Chemical family Cyclohexanedione