Signal® FSU herbicide is an all-in-one wheat herbicide for trusted post-emergent grass and broadleaf weed control.

Technical information

Active ingredients: Group 1 (clodinafop), Group 2 (tribenuron, thifensulfuron), Group 4 (fluroxypyr)
Rainfast: 4 hours
Treatment area: One case treats 40 acres
Tank-mix order: Boost®, Signal F, Enhance
Crop staging: 2 leaf – prior to emergence of 4th tiller
Notes: Always follow tank-mix order

Registered crops

  • Wheat (spring, durum)

Weeds controlled

Grass weeds

  • Barnyard grass
  • Foxtail (green or yellow)
  • Persian darnel
  • Volunteer canary seed
  • Volunteer tame oats
  • Wild oats

Broadleaf weeds

  • Annual smartweed (green smartweed, lady’s thumb)
  • Ball mustard
  • Canada thistle (suppression)
  • Chickweed
  • Cleavers
  • Common groundsel
  • Corn spurry
  • Cow cockle
  • Flixweed
  • Hemp-nettle
  • Kochia
  • Lamb’s-quarters
  • Narrow-leaved hawk’s-beard
  • Redroot pigweed
  • Round-leaved mallow (suppression)
  • Russian thistle
  • Scentless chamomile (suppression)
  • Shepherd’s purse
  • Sow-thistle (suppression)
  • Stinkweed
  • Stork’s bill (suppression)
  • Tartary buckwheat
  • Volunteer canola (excluding Clearfield®)
  • Volunteer flax
  • Volunteer sunflower
  • Wild buckwheat
  • Wild mustard


  • ALL-IN-ONE post-emergent wheat herbicide
  • TRUSTED, PROVEN GRAMINICIDE for wild oat and foxtail control
  • CONTROLS PROBLEM BROADLEAF WEEDS with fluroxypyr, the leading active ingredient in broadleaf control in Western Canada plus the proven benefits of two SU actives for support
  • Contains more fluroxypyr than the competition, to help fight Group 2-resistant weeds like cleavers and kochia
  • Two modes of action target broadleaf weeds to help slow resistance development
  • Contains one of the most trusted wheat graminicides on the market

Weed control challenge

Wheat crops face tough competition every season from weeds. Wild oats and tough-to-kill broadleaf weeds top the list for freeloaders looking to steal vital nutrients and yield from your wheat crop. There are a lot of choices for post-emergent weed control. Choosing the best combination for your wheat in spring conditions can be confusing.

Nufarm solution

Signal FSU delivers winning control in the battle against weeds in wheat. Its four active ingredients (Groups 1, 2 and 4) make Signal FSU a superior all-in-one post-emergent wheat herbicide – with the most trusted graminicide on the market and the number one broadleaf active ingredient. Weeds can’t win.

Tank-mix partners

  • 2,4-D Ester 700
  • MCPA Ester 600