Fierce® EZ is a new liquid pre-emergent residual herbicide that offers extended activity on emerging spring broadleaf and grassy weeds for soybeans and wheat.

Technical information

Active ingredients: Group 14 (flumioxazin), Group 15 (pyroxasulfone)
Application timing: Pre-emergent for soybeans. Should be applied a minimum of 7 days prior to planting spring wheat, winter wheat, and field corn (no-till only). Apply up to 3 days after planting soybeans
Treatment area: One case (2 x 7.16L) treats 80 acres (at 180 mL/ac.)
Tank-mix order: Fierce EZ, BlackHawk® (if used), glyphosate
Notes: Planting after herbicide application requires the use of minimum disturbance planting systems. Fierce EZ requires moisture to activate in the soil and provides up to 8 weeks of residual control.
PCP #: 33869

Registered crops

  • Soybeans
  • Spring wheat
  • Field corn

Weeds controlled

  • Annual sow-thistle
  • Barnyard grass
  • Canada fleabane
  • Chickweed
  • Cleavers (including Group 2- and glyphosate-resistant biotypes)
  • Common ragweed
  • Dandelion
  • Downy brome (suppression)
  • Eastern black nightshade
  • Foxtail barley (suppression)
  • Green foxtail (including Group 1- and 2-resistant biotypes)
  • Green and redroot pigweed (including Group 2- and 5-resistant biotypes)
  • Hairy nightshade
  • Japanese brome (suppression)
  • Lamb’s-quarters (including Group 2-, 5- and glyphosate-resistant biotypes)
  • Large crabgrass
  • Palmer amaranth
  • Pennsylvania smartweed
  • Russian thistle (suppression)
  • Velvetleaf
  • Volunteer canola (suppression)
  • Waterhemp (including Group 2-, 5-, and glyphosate-resistant biotypes)
  • Wild buckwheat
  • Wild mustard (including Group 2-resistant biotypes)
  • Wild oats (suppression)


  • GRASSY WEED MANAGEMENT for cleaner fields with a different herbicide mode of action
  • LONGER CONTROL with residual activity that lasts up to 8 weeks
  • TWO ACTIVE INGREDIENTS (proven Group 14 and 15) for management of Group 2-, 5- and glyphosate-resistant weeds
  • Tank-mixable with most burndown and pre-emergent herbicides (i.e. glyphosate and BlackHawk®)
  • No surfactant required

Performance tips

  1. Emerged weeds – use with a burndown herbicide partner like glyphosate and BlackHawk
  2. Flushing weeds – residual activity for newly emerging weeds
  3. Flexible application – Fierce EZ alone can be applied pre-plant or up to 3 days post plant
  4. Refer to label for rates and use patterns
  5. DO NOT incorporate after application or prior to planting
  6. Leave a small checkstrip in the field to show performance

For specific crop usage information see label for details