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

Solution Sheet

 

 

 

Technical Information

Active ingredient:  Group 14 (sulfentrazone)
Rainfast:  Rain required for activation
Treatment area:  88-118 mL/acre, one case treats 120-160 acres (consult label for more information)
Application:  Tank-mix with glyphosate and BlackHawk for enhanced control of emerged weeds
Application timing: Pre-emergent for wheat, field peas and soybeans. 
Tank-mix order:  Astir, BlackHawk (if used), glyphosate
Notes:  Seeding after application requires the use of minimum to zero-tillage drills. Astir requires moisture to activate in the soil.

Registered crops

  • Wheat (spring)
  • Field peas
  • Soybeans
  • Flax
  • Sunflower

Weeds controlled

  • Common groundsel
  • Common purslane
  • Common waterhemp
  • Eastern black nightshade
  • Lamb’s quarters
  • Large crabgrass
  • Powell pigweed
  • Redroot pigweed
  • Smooth crabgrass
  • Wild buckwheat
  • Yellow woodsorrel

Benefits

  • EARLY SEASON CONTROL helps eliminate broadleaf weed pressure in soybeans, wheat and pulses soybeans during critical growth periods
  • EXTENDED SOIL ACTIVITY for residual control of flushing weeds
  • RESISTANCE MANAGEMENT TOOL that helps manage weeds on the Astir product label that are Group 2-, 4- and glyphosate-resistant
  • FLEXIBLE RATE to fit your soil type and crop program
  • FAST ABILITY TO SEED with only a 3-day seeding interval after application
  • 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

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. Application flexibility – Astir alone can be used up to 3 days post-seeding
  4. DO NOT incorporate after application or prior to seeding

For specific crop usage information see label for details