Valtera™ is a pre-emergent residual herbicide that offers up to 8 weeks of early season broadleaf weed control in pulses, soybeans and wheat.

Technical Information

Active ingredient: Group 14 (flumioxazin)
Rainfast: Rain is required for activation
Treatment rate: One case treats 160 acres (at 56 g/ac. rate)
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 and spring wheat, apply up to 3 days after seeding soybeans, chickpeas and field peas
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 (fall application prior to large green and small red varieties)
  • Soybeans
  • Wheat

Weeds Controlled

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

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

Weed Control Challenge

Early season weeds like kochia, chickweed, pigweed, lamb’s-quarters, and seedling dandelion put serious pressure on your crop. They compete with the young pulse, wheat and soybean plants for nutrients, moisture and sunlight- making it much harder to get off to a strong start.

Nufarm Solution

Valtera herbicide knocks out troublesome broadleaf weeds with long-term (up to 8 weeks) residual control in wheat, pulses, and soybeans. Using Valtera (in the fall, pre-seed or pre-emergent) with glyphosate and or BlackHawk burndown provides residual control, boosts yields, and provides flexibility to seed wheat if cropping plans change.


  • RE-CROPPING FLEXIBILITY means crops can be seeded 12 months after application 
  • EARLY SEASON CONTROL eliminates early season broadleaf weed pressure in lentils, field peas, chickpeas, wheat and soybeans
  • EXTENDED CONTROL with residual activity that provides longer-lasting control of tough weeds (up to 8 weeks)
  • RESISTANCE MANAGEMENT TOOL helps controls glyphosate-resistant weeds
  • 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 (ie. glyphosate, GoldWing and BlackHawk)

Performance Tips

  • Emerged weeds – use with  a burndown herbicide partner like glyphosate, BlackHawk and/or GoldWing
  • Flushing weeds – residual activity for newly emerging weeds
  • Emerged crop – Valtera alone can be used up to 3 days post seeding, but prior to emergence of registered crops other than wheat, corn and lentils
  • Refer to label for rates and use patterns
  • DO NOT incorporate after application or prior to seeding
  • Pre-seed applications require the use of minimum disturbance seeding systems
  • Non-ionic surfactant required if glyphosate is not being tank-mixed
  • Leave a small check-strip in the field to show performance

Spring Weed Control


For specific crop usage information see label for details