Group C herbicide damage

Constraint – Group C herbicide damage

Symptoms

• Rapid yellowing begins on the oldest leaves, often with inter-veinal chlorosis
• Leaf death begins at the leaf tip and edges and moves down to the base of the plant
• Roots are not affected

Damage

• The plant either completely recovers, or dies

Control

There is no treatment. It is important to observe withholding periods for these herbicides to avoid damage to following crops. 

Links and Resources

DAFWA - Group C herbicide damage Introduction, what to look for on plant and in paddock, what else could it be, and treatment.

DEPI VIC - Group C herbicide damage Information on residual herbicide presence, which herbicides are residual, how herbicides break down, and avoidance methods. Page last updated 2013.