Information on the Argentine ant, an invasive ant species which poses a risk to crops, exports and human health in Hawke's Bay.
The Argentine ant (Linepithema humile) are an invasive ant species which pose a risk to crops, exports and human health. They are aggressively invasive and can quickly form super-colonies, pushing out native ant species. They invade buildings and can impact on our outdoor lifestyle. Argentine ant bites are not poisonous but can be irritating and cause allergic-type reactions in some people.
Argentine ants are a uniform light brown or honey colour compared to the dark colours of more common ants. They measure 2-3 mm in length and the workers are all the same size. They travel in distinctive trails, moving over an object in their path rather than going around.
Argentine ants can spread naturally up to 150 m per year. However, the majority of infestations begin with people inadvertently transporting infested pot plants, firewood, soil, caravans, cars, freight etc to new locations.
The main impact on horticulture is the ability of Argentine ants to ‘farm’ sap-sucking aphids and scale insects, leading to a higher risk of disease transmission, reduction of crop yield and/or quality, disruption of biological control agents and an increase in spray regimes.
We provide an advisory service. We are mapping known infestations and provide advice and subsidized product to property owners so they can control the infestations on their land.
Please contact our Argentine ant advisor on 006468338083.
Disclaimers and Copyright
While every endeavour has been taken by the Hawke's Bay Regional Council to ensure that the information on this website is accurate and up to date, Hawke's Bay Regional Council shall not be liable for any loss suffered through the use, directly or indirectly, of information on this website. Information contained has been assembled in good faith. Some of the information available in this site is from the New Zealand Public domain and supplied by relevant government agencies. Hawke's Bay Regional Council cannot accept any liability for its accuracy or content. Portions of the information and material on this site, including data, pages, documents, online graphics and images are protected by copyright, unless specifically notified to the contrary. Externally sourced information or material is copyright to the respective provider.
© Hawke's Bay Regional Council - www.hbrc.govt.nz / +64 6 835 9200 / firstname.lastname@example.org