Trade name(s) Hyvar X, Hyvar X-L

Manufacturer(s) Corteva

Formulation(s) 80% wettable powder, 2 lb/gal water-soluble liquid

Remarks A substituted uracil compound used preemergence or as a spot-treatment on brush. A nonselective soil-residual herbicide; controls a wide range of weeds and brush.

Water solubility 815 ppm

Storage conditions Stable to 0°F, but water-soluble formulations become less soluble when exposed to air.

Acute toxicity LD50 - 5,200 mg/kg

Action in plant Inhibits photosynthesis.

Site of action Group 5: photosystem II inhibitor

Chemical family Uracil

Koc Average is 32 mL/g