Trade name(s) Valor, Chateau, SureGuard, Payload, BroadStar, Outflank, Warfox
Manufacturer(s) Valent, ADAMA
Formulation(s) 41% and 51% water-dispersible granule, 0.25% granular
Remarks A preemergence and postemergence herbicide for controlling some broadleaf weeds. Has some residual effect when used preemergence. Rapidly burns down broadleaf weeds when used postemergence.
Water solubility 1.78 ppm
Storage conditions Stable under normal storage conditions.
Acute toxicity LD50 - greater than 5,000 ppm
Action in plant Inhibits protoporphyrinogen oxidase, an enzyme important in the synthesis of chlorophyll; acts as a contact herbicide.
Site of action Group 14: protoporphyrinogen oxidase inhibitor
Chemical family N-phenylphthalimide