Valtera™ is a pre-emergent soil active herbicide for early season broadleaf weed control in pulses, wheat and soybeans.

Technical information

Active ingredient:  Group 14 (flumioxazin)
Treatment area:  56 g/acre, One case treats 160 acres
Application:  Tank-mix with glyphosate and/or BlackHawk/GoldWing for enhanced control of emerged weeds
Application timing:  Fall apply as late as possible but prior to freeze up for any registered crop. Pre-plant or pre-emergent for soybeans, field peas and chickpeas. Should be applied a minimum of 7 days prior to seeding field corn, wheat and lentils. Apply up to 3 days after seeding soybeans, chickpeas and field peas. Must be applied 30 days prior to seeding durum wheat
Tank-mix order:  Valtera, BlackHawk or GoldWing (if used), glyphosate
Notes:  Seeding after application requires the use of minimum to zero till drills. Valtera requires moisture to activate in the soil

Registered crops

  • Chickpeas
  • Field corn
  • Field peas
  • Lentils (large green and small red varieties)
  • Soybeans
  • Wheat

Weeds controlled

  • Canada fleabane*
  • Chickweed
  • Dandelion (seedling)
  • Green foxtail (suppression)
  • Kochia (including Group 2-, 4- and glyphosate-resistant biotypes)
  • Lamb’s-quarters
  •  Palmer amaranth*
  • Pigweeds
  • Volunteer canola – all biotypes (suppression)
  • Waterhemp*

*Farmers in Southern Manitoba should watch for these weeds moving northward from the US


  • EARLY SEASON CONTROL helps eliminate broadleaf weed pressure in pulses, wheat and soybeans during critical weed periods
  • EXTENDED CONTROL with soil activity that provides longer lasting control of tough weeds (up to 8 weeks)
  • RESISTANCE MANAGEMENT TOOL that helps control glyphosate-resistant weeds
  • RE-CROPPING FLEXIBILITY – most crops not listed on the label can be seeded 12 months after application
  • Apply in fall or spring (check label for specific crop registrations)
  • No hassle application that doesn’t include the handling and incorporation of bulky granular herbicide products
  • Extended early season control for extra in-crop herbicide flexibility that helps to improve the efficacy of in-crop herbicide applications by targeting fewer, smaller weeds
  • Yield potential is increased through early elimination of weed competition
  • Tank-mixable with most burndown and pre-emergent herbicides (i.e. glyphosate, GoldWing and/or BlackHawk)

Performance tips

  1. Emerged weeds – use with a burndown herbicide partner like glyphosate and BlackHawk or GoldWing
  2. Flushing weeds – residual activity for newly emerging weeds
  3. Emerged crop – Valtera alone can be used up to 3 days post seeding, but prior to emergence of soybeans, chickpeas and field peas
  4. Refer to label for rates and use patterns
  5. DO NOT incorporate after application or prior to seeding
  6. Pre-seed applications require the use of minimum disturbance seeding systems
  7. Non-ionic surfactant required if not tank-mixed with another product
  8. Leave a small checkstrip in the field to show performance

For specific crop usage information see label for details