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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 buckwheat Metribuzin injury on cucumber Metribuzin injury on potato Metribuzin injury on tomatoClick to enlarge.