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Ministry of Agriculture, Food and Rural Affairs


Trade Names: Dual Magnum, Dual II Magnum

Group 15

Site of Action: Conjugation of acetyl co-enyme A

Following PRE emergent application:

Following POST emergent application:
  • Seedlings are deformed
  • Leaves may be trapped or emerge underground

Uptake and Translocation

  • Absorbed by germinating grasses mainly through shoot just above seed
  • Absorbed by germinating broadleaf weeds through roots and shoots
  • Translocated to growing points


  • Activity will normally be maintained for 10- 14 weeks
S-metolachlor injury on Cucurbits S-metolachlor injury on Cucurbits
Click to enlarge.