| Nicotinanalides | |
| Chemical name | Example trade name |
| Diflufenican | Brodal® |
| Picolinofen | Tigrex® (with MCPA) |
| Jaguar® (with bromoxynil) | |
| Paragon® Sniper ® | |
Diagnosing group F herbicide damage in narrow-leafed lupins
Group F herbicides are registered for selective control of wild radish, wild mustard and wild turnip in cereals, legume crops and legume pastures.
What to look for
- Direct spray damage is uniformly distributed but varies with spray coverage on overlaps or boom turns.
Paddock
- 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.
Plant
What else could it be
| Condition | Similarities | Differences |
|---|---|---|
| Diagnosing contact herbicide damage in narrow-leafed lupins | Pale leaf lesion on sprayed leaves | These rapidly become necrotic and the plant may die. |
Where does it occur?
- These herbicides are more active in moist soil.
- Situations where the herbicide is close to seed. This includes shallow sowing or heavy rain washing herbicide into furrows in ridged seedbeds.
- Topsoils with low adsorption capacity such as sands with low organic matter.
Management strategies
- No treatment - plants can grow out of it
How can it be monitored?
- It is important to observe withholding periods for these herbicides to avoid damage to following crops.
- Take care when spraying not to spray non-tolerant varieties
Further information
Where to go for expert help
Page last updated: Thursday, 5 February 2015 - 3:05pm