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Ministry of Agriculture, Food and Rural Affairs

TRIclopyr

Trade Names: Garlon 4, Garlon ULTRA, Garlon XRT, Garlon RTU, Release

Group 4

Site of Action: Synthetic auxins

Symptoms

  • At first symptoms include:
    • Bending, twisting, swelling and elongation of stems
    • Leaf cupping and curling
  • Followed by:
    • Chlorosis at the growing points
    • Growth inhibition
    • Wilting
    • Necrosis, and death of susceptible plants within 3- 5 weeks
    • Low concentration may cause young leaves to look puckered

Uptake and Translocation

  • Absorbed by both plant leaves and roots.
  • Tends to accumulate in meristematic tissues and is not readily metabolized in susceptible plants.

Persistence

  • Half-life in soil is approximately 30 days under conditions that are favourable for microbial decomposition.

 

Triclopyr injury on squashClick to enlarge.