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Ministry of Agriculture, Food and Rural Affairs

SETHOXYDIM

Trade Name: Poast Ultra

Group 1

Site of Action: Inhibitors of acetyl CoA carboxylase (ACCase)

Symptoms

Following PRE emergent application:

  • The growth of the primary root is inhibited and leaves fail to emerge

Following POST emergent application:

  • Young, rapidly growing tissues are the first to exhibit symptoms
  • Within a few days growth is inhibited
  • Within 1- 3 weeks chlorosis and necrosis occur
  • Older leaves may change colour to purple, orange, or red before undergoing necrosis
  • Leaf sheaths turn brown and mushy

Uptake and Translocation

  • Absorbed by foliage
  • Translocated upward and downward in the plant

Persistence

  • Half-life: 5 days