Groups D J herbicide damage

Constraint – Group D/J herbicide damage

Damage

• Reduced or poor seedling emergence
• Shortening and thickening (Group D) of coleoptile so that emerging leaves are unable to reach the soil surface
• Emerged shoots are often swollen and bright green (Group J), or have twisted and distorted leaves (Group D)
• Roots are often short and thick with stubby or spade like tips

Control

There are no treatment options, plants either die or completely recover. As a precaution, pray when environmental conditions are optimal, and avoid spray drift.

Links and Resources

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

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