Turf management in fire ant restricted areas
Turf from fire ant biosecurity zones is considered a high risk for the spread of fire ants.
The Biosecurity Regulation 2016 outlines what management methods you must follow when producing, storing and moving turf in a fire ant biosecurity zone.
Moving turf in, across or outside the fire ant biosecurity zones
You may move turf in, across or outside the fire ant fire ant biosecurity zones if you:
- move material from zone 1 directly to a waste facility in zone 1 or 2
- move material from zone 2 directly to a waste facility in zone 2 only
- move the material within 24 hours of it arriving at the original place
- follow the management methods outlined in the section below.
You can also use our fire ant advice tool to find out what requirements apply to you.
If you are unable to comply with these conditions then you must request a biosecurity instrument permit from an inspector.
You can minimise the risk of fire ant infestation in turf by:
- applying insecticide correctly and at the required times
- storing turf correctly.
Treatment of turf
The Australian Pesticides and Veterinary Medicines Authority (APVMA) has approved the use of bifenthrin for the control of fire ants on commercial turf farms as outlined below:
- 80g/L bifenthrin—refer to APVMA permit number PER14317 (expires 31 December 2021).
You can search for permits on the APVMA website.
All use of insecticides must be in accordance with the conditions of the permit and in conjunction with the product's label.
Treating with bifenthrin
Bifenthrin is the preferred method of fire ant treatment for turf. Apply 2 consecutive treatments of bifenthrin 7 days apart. Do not lift the turf for at least 28 days after the second application. This method provides 12 weeks of protection.
If you don't harvest the treated turf, you should treat it again 7 weeks after the second treatment to maintain ongoing protection.
Irrigate the treated area immediately after each application.
Any variations to the treatment regime may not provide appropriate protection against fire ants before the turf is harvested, sold and moved.
For further information, contact a National Red Imported Fire Ant Eradication Program inspector on 13 25 23.
Storage of turf
If turf will be stored on the property for more than 24 hours, you must use 1 of the following storage options:
- off-ground and covered (e.g. in a shed, under a shade cloth or tarpaulin)
- on-ground, and covered, on 1 of the following surfaces:
- concrete or bitumen (no cracks)
- a barrier that cannot be penetrated by fire ants (e.g. 200 micron unperforated plastic sheeting)
- compacted ground (other than sand) that has been treated with an appropriate chemical product before storage.
Chemical treatment must be applied around the perimeter of the on-ground storage area. This should be done by applying a 30cm-wide strip of insecticide containing 80g/L bifenthrin. If soil is stored on compacted ground, the whole surface area must also be treated.
Keep the treated area free of material that could form an untreated bridge to the soil.
For an insecticide registered as a horizontal or perimeter barrier for fire ants, refer to Australian Pesticides and Veterinary Medicines Authority (APVMA) permit PER14317 (expires 31 December 2021).
Keeping a record
You should keep a written record of the steps you have taken to ensure you have managed the turf in accordance with these guidelines and the permit. Keep these records for a minimum of 2 years.