Contact herbicide damage

Constraint - Contact herbicide damage

Symptoms

• General wilting of plants
• Yellowing (chlorosis) of leaves
• Tip death
• in severe cases, plant death

Damage

• Symptoms appear within hours or one or two days of application, depending on the herbicide used, and can be mild or severe.
• The pattern of damage reflects spray coverage 
• Contact herbicide spots may be caused by spray drift, but plants will generally recover
• Serious damage is generally caused by direct spraying and generally causes death within 4 days

Control

There are no treatment options, plants either die or completely recover. As a precaution, spray when the risk of drift is low or when environmental conditions are safe.

Links and Resources

DAFWA - Contact herbicide damage What to look for in paddock and on plant, what else could it be, where does it occur, and treatment.

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