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Ministry of Agriculture, Food and Rural Affairs

Amitrole

Trade Name: Amitrol 240

Group 11

Site of Action: Inhibitors of carotenoid biosynthesis

Symptoms

  • Bleaching in leaves and shoots (most evident in meristems and developing leaves)
  • Necrosis
  • Wilting

Uptake and Translocation

  • Absorbed by foliage and roots
    Translocates well in xylem and phloem
    Accumulates in growing regions of plant

Persistence

  • Average persistence
  • Half life in field: 14 days

Photographs courtesy of:

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

 

Amitrole injury on barleyAmitrole injury on canada thistleAmitrole injury on canary seedAmitrole injury on canolaAmitrole injury on flax