NSW DPI and Local Land Services is leading the response to yellow crazy ant in the Lismore region first discovered in May 2018. The infestation is restricted to two sites; the Lismore CBD and Terania Creek North of Lismore.
Yellow crazy ants are highly invasive and can build super colonies and devastate local flora and fauna and impact on agricultural production and the horticultural industry.
Yellow crazy ants, although not a direct threat to humans, are serious and classified as a prohibited matter event under the Biosecurity Act 2015 as they are a serious environmental pest which pose a risk to our economy, environment and communities.
The provisions of the Act include a duty to notify NSW DPI if you become aware of, or suspect the presence of yellow crazy ants.
Extensive surveillance has been conducted in the local area and the two known infestations are receiving ongoing treatment. The treatment program is subject to strict conditions to ensure there is no “off target” damage.
The program has been progressing well with a clear reduction in the number and vigour of nests at both the CBD and Terania Creek infestations. It is expected that treatment will continue throughout the summer months.
The response team has put a lot of effort into locating specific nests within the CBD infestation and has trained a odour detection dog to accurately locate any additional nests. Further surveillance will be conducted in the broader region in early December 2018 using State Emergency Services and Rural Fire Service members. This surveillance will determine if there are any outlying infestations. A river survey will also be conducted at the same time to see if the ants have been moved during flood events.
We are working hard to stop the spread and eradicate Yellow Crazy Ant in NSW and we need your help. Remember - the sooner we know about an infestation, the sooner we are able to put in place measures to contain and eradicate yellow crazy ant.
Yellow crazy ant can be spread with the movement of plants and soil. While the ants themselves spread relatively slowly, it is critical that the community works hard to prevent these pests from spreading by hitchhiking on garden materials, soil and with people and their belongings
To help us prevent the spread of yellow crazy ant, NSW DPI has put movement restrictions in place, preventing the carrying of vegetative matter and soil within a 5km radius of the Lismore CBD. For more information, please refer to the General Biosecurity Direction (GBD).
Individual or General Biosecurity Directions are being given to infested properties. Any movement of yellow crazy ant material off these properties require a permit.
People within the 5km area (other than infested properties) are now only required to satisfy an online risk assessment by submitting a risk assessment and notification declaration form to move yellow crazy ant materials.
High risk businesses within the 5km area, or businesses identified by NSW DPI as high risk will require a Biosecurity Permit to move yellow crazy ant material.
Yellow crazy ant materials moved directly to the Lismore Recycling & Recovery Centre 313 Wyrallah Road East Lismore NSW 2480 are exempt from the above requirements.
Penalties apply to people breaking these restrictions.
These provisions will remain in place until 30 June 2019.
You can help stop the spread of Yellow Crazy Ant by:
Follow the requirements of our biosecurity controls outlined in the General Biosecurity Direction. This means not moving certain things such as vegetation, plant matter or soil except in accordance with strict rules outlined in the GBD.
Report any suspicious sightings immediately by visiting the online form: https://www.dpi.nsw.gov.au/antreport
Yellow Crazy Ant is recognised by their pale yellow body colour, unusually long legs and antennae. The name 'crazy ant’ is derived from their frantic movements and frequent changes in direction, especially when disturbed.
Yellow Crazy Ants form super colonies with several queens and once a super colony is established, it can expand rapidly, in some cases doubling in size in 12 months.
In order to effectively eradicate the ant, NSW DPI and its partners have applied bait in and around the Lismore CBD to directly treat known nests. Care has been taken to ensure safe application of the baits and treatments.
NSW DPI, Local Land Services and Council identified strategic areas to treat the ant colony using the following methods:
Fipronil is specifically designed to target invertebrate animals (animals without backbones) This product has been tested extensively and there is no evidence that Fipronil is harmful to humans.
The application method used, and the low-strength formulation chosen, present very low risk to non-target species.
Fipronil is not well absorbed by plants and is broken down by sunlight.
As part of the permit conditions the baits were not be placed near waterways or storm water drains.
The yellow crazy ant (Anoplolepis gracilipes) is a highly invasive exotic pest that can build super colonies and seriously impact local fauna, agricultural production and ecosystems.
Unchecked, it poses a serious economic and environmental threat, so it is important that we prevent it taking hold in NSW.
Yellow crazy ants were found at various sites in Lismore CBD in May 2018. Ongoing surveillance by the NSW Department of Primary Industries and Local Land Services has identified several smaller infestations in outlying areas which are currently being treated.
The exact source of the infestation is speculative and we may never know how yellow crazy ant came to Lismore.
Yellow crazy ant tends to walk rather than fly and are generally very slow in expanding their range by themselves.
However, they can hitchhike in organic materials, or on people’s belongings, resulting in the infestation spreading. This is why it is critical for people to be aware and check for yellow crazy ant before moving equipment and materials.
When they achieve great enough numbers they are known to kill small animals. Although they do not sting, they squirt formic acid into the eyes of the prey which blinds the animal and they starve. The ants also tend to sap sucking insects which impact vegetation. This can change the composition of the vegetation in native forests.
Department of Primary Industries and Local Land Services have prepared a strategic surveillance plan which has several elements:
NSW Department of Primary Industries is undertaking a targeted luring and baiting program to eradicate the ants, with follow up treatments to ensure all ants have been removed. For more information, please visit www.dpi.nsw.gov.au/yca
You can help stop the spread of yellow crazy ant by:
The ant nests are not obvious and are therefore hard to spot. As such, we do not have pictures of the ant nests but the best place to look for Yellow Crazy Ant is on the trunks of trees because they harvest sap sucking insects in the trees.
The Yellow Crazy Ant can be identified as follows:
The restrictions apply until the end of June 2019. The boundaries of the restricted area are outlined on the attached map. For movement restriction updates, please visit www.dpi.nsw.gov.au/yca
Movement restrictions are in place, preventing the carrying of vegetative matter and soil within a 5km radius of the Lismore CBD.
Individual or General Biosecurity Directions are being given to infested properties. Any movement of yellow crazy ant material off these properties requires a permit.
People within the 5km area (other than infested properties) are now only required to satisfy an online risk assessment and submit a movement notification to move yellow crazy ant materials.
High risk businesses within the 5km area, or businesses identified by NSW DPI as high risk will require a Biosecurity Permit to move yellow crazy ant material. Yellow crazy ant materials moved directly to the Lismore Recycling and Recovery Centre 313 Wyrallah Road East Lismore NSW 2480 are exempt from the above requirements.
People needing to move these materials can apply for a permit to move restricted material by completing the permit application at www.dpi.nsw.gov.au/yca
No. The restrictions won’t include food waste.
Mowers and mowing equipment should be cleaned before being moved outside the restricted zone. The grass clippings can be taken to the waste depot after being inspected for yellow crazy ant.
The Lismore Recycling and Recovery Centre will be exempted from the restrictions, and appropriate mitigation put in place on site following a risk assessment. Residents are encouraged to continue to use the centre as normal.
Yes. Garden materials, including mulch, plants, and other organic matter can be moved into the restricted zone.
People within the restricted zone will be subject to movement restrictions covering soil, green waste and organic materials. However there will be a permit process in place to allow restricted movements of these materials when needed.
This shouldn’t prevent construction certificates being issued.
It would help prevent the movement of ants if people did not park cars on grassed areas within the restricted zone. You may see Lismore Council officers or notifications giving direction on this issue.
Machines that move and shift soil or vegetation will need to be cleaned and free of material before being moved.
No. The restriction is not expected to impact the movement of vehicles or caravans, although we encourage you to check your vehicle and belongings before leaving the restricted zone.
The restricted zone will be reassessed as required to take into account any newly discovered colonies.
Surveillance activity is ongoing and we are encouraging people outside the restricted zone to report any suspected sightings of yellow crazy ant.
Community and sporting events are not affected and can continue as normal.
Residents are reminded that ants can hitchhike on personal belongings and equipment so please inspect your gear before leaving the restricted zone.
Brush down your belongings and ensure they are free of ants before leaving the restricted zone.