Abiotic constraints in Wheat
Abiotic in-crop constraints for wheat
Contact herbicide damage
Constraint - Contact herbicide damage
- General wilting of plants
- Yellowing (chlorosis) of leaves
- Tip death
- in severe cases, plant death
- 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
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.