Weed control techniques

Techniques for controlling weeds

It is important to identify weed infestations properly and to choose the most appropriate method of control while taking into account the costs of control and the potential environmental impacts.

Try non-chemical control methods first

Use non-chemical control methods wherever they are practical and likely to be effective.

Your legal obligations when using herbicides

When using herbicide to control weeds the user has a legal obligation to read the herbicide manufacturer's label and apply the herbicide in accordance with that label.

Responsible use of herbicides protects human health and the natural environment.

Weed management techniques

Follow these step-by-step instructions for effective weed management.


Hand pull

  1. Remove and bag seed heads and flowers.
  2. Grasp the plant firmly from the base of the stem.
  3. Gently pull the plant out with constant pressure.
  4. Shake off any excess dirt attached to the roots.

Cut and paint

  1. Cut the stem as near to the ground as possible, leaving a horizontal surface so the herbicide does not run off.
  2. Within 30 seconds of cutting the stem, paint herbicide evenly across the whole surface of the open wounds.
  3. Make sure that each stem has been treated in the same way.

Scrape and paint

  1. Scrape a vertical section of the bark off both sides of the stem (with a sharp knife) approximately five centimetres in length, near the ground, without ringbarking the plant.
  2. Apply herbicide on the open wound (as per the cut and paint method).
  3. Make sure that each stem has been treated in the same way.

Foliar spray

  1. Spray designated areas using a herbicide.
  2. Make sure that when spraying the whole plant is treated.
  3. Only spray healthy actively growing plants.
  4. Do not spray in windy conditions; do not spray plants heavy with dew, and do not spray if rain is expected in the next four hours.

For more information on weed control techniques go to www.sydneyweeds.org.au 

Last Updated: 24 October 2022
Back to top