Imazaquin

Trade name(s) Scepter

Manufacturer(s) AMVAC

Formulation(s) 70% dispersible granule

Remarks A selective preplant-incorporated, preemergence or postemergence herbicide effective in controlling broadleaf weeds and some grasses. A nonionic surfactant or oil adjuvant improves efficacy of postemergence treatments.

Water solubility 60 ppm

Storage conditions Stable in normal storage conditions.

Acute toxicity LD50 - greater than 5,000 mg/kg

Action in plant Inhibits plant enzyme acetolactate synthase.

Site of action Group 2: acetolactate synthase (ALS) inhibitor

Chemical family Imidazolinone

Koc Average is 20 mL/g (estimated) at pH 7, but varies with pH