Chaperone® herbicide is a flexible in-crop solution for tough broadleaf weeds in IP, conventional and herbicide-tolerant soybeans.

Technical information

Active ingredient: Group 2 (chlorimuron-ethyl)
Application timing: Burndown, pre-plant, pre-emergent, post-emergent (up to 3-leaf stage)
Treatment area: One case treats 100 acres
PCP #: 30475

Registered crops

  • Soybeans

Weeds controlled

  • Common ragweed* (including glyphosate-resistant biotypes)
  • Dandelion
  • Redroot pigweed*
  • Velvetleaf
  • Yellow nutsedge

*Populations exist that are resistant to Group 2- herbicides.


  • EFFECTIVE, SEASON-LONG control of tough broadleaf weeds
  • ENHANCES THE ACTIVITY OF GLYPHOSATE while adding dependable residual when used as a burndown
  • TAKES DOWN BROADLEAF WEED ESCAPES and prevents secondary flushes when used post-emergent
  • Excellent activity on tough winter annual and perennial weeds
  • Apply from pre-plant to post-emergent up to the 3-leaf stage of soybeans
  • Consistent, strong dandelion control
  • No surfactant required for pre-emergent use
  • Non-ionic surfactant required for post-emergent use
  • Crop safe and easy to use

Weed control challenge

Problem weeds like dandelion, velvetleaf and pigweed can emerge before a crop is planted or after the new crop emerges. These tough weeds are very adaptable and you need a herbicide that is too.

Nufarm solution

Chaperone herbicide delivers outstanding application flexibility – from burndown through post-emergence for consistent control of tough perennial and annual weeds in both IP, conventional and herbicide-tolerant soybean systems. 


For specific crop usage information see label for details