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Ministry of Agriculture, Food and Rural Affairs


Trade Names: Conquest A, Sencor 480 F, Sencor 75 DF

Group 5

Site of Action: Inhibitors of photosynthesis at photosystem II, Site A

Following PRE emergent application:

Following POST emergent application:

  • Chlorosis and necrosis are visible between leaf veins

Uptake and Translocation

  • Some uptake through the foliage but the major route is via the roots
  • Translocation upwards in the xylem


  • Varies with the climate
  • Half-life: 1- 2 months

Photographs courtesy of:

F.A Holm and Ken Sapsford at University of Saskatchewan - Department of Plant Sciences - Weeds Research - Herbicide Injury Symptoms:

MetribuzinMetribuzin injury on beanMetribuzin injury on canolaMetribuzin injury on chickpeaMetribuzin injury on chickpeaMetribuzin injury on peaMetribuzin injury on wild buckwheatClick to enlarge.