Trade name(s) Lambient, Olympus

Manufacturer(s) Bayer CropScience, Bayer Environmental Science

Formulation(s) 70% water-dispersible granule

Remarks Postemergence herbicide used primarily to control annual grasses and some broadleaf weeds in winter wheat.

Water solubility 2,900 ppm at pH 4; 42,000 ppm at pH 7 and pH 9

Storage conditions Store in cool, dry place.

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

Action in plant Inhibits the acetolactate synthase (ALS) enzyme, resulting in rapid cessation of cell division and plant growth in both roots and shoots.

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

Chemical family Sulfonylaminocarbonyltriazolinone