Diagnosing group F herbicide damage in field peas

Group F herbicides are registered for selective control of wild radish, wild mustard and wild turnip in cereals, legume crops and legume pastures.

White chlorosis on tendrils and spray contact points
Yellow chlorosis that has become necrotic
Plants recover from damage
Nicotinanalides
Chemical name Example trade name
Diflufenican Brodal®
Picolinofen

Tigrex® (with MCPA)

Jaguar® (with bromoxynil)

Paragon®

Sniper®

 

What to look for

    Paddock

  • Direct spray damage is uniformly distributed but varies with spray coverage on overlaps or boom turns.

      Paddock

    • Direct spray damage is uniformly distributed but varies with spray coverage on overlaps or boom turns.
  • Bright white or yellow bleaching of young leaves or parts of leaves that slowly fades.
  • Plants generally recover.
  • Stressed plants are more liable to develop symptoms. Causes include cold, wet conditions, or frost or high temperatures after spraying.

What else could it be

Condition Similarities Differences
Diagnosing contact herbicide damage in field peas Pale leaf lesion on sprayed leaves These rapidly become necrotic and the plant may die

Further information

Page last updated: Wednesday, 13 May 2015 - 2:09pm