Lettuce aphid (Nasonovia ribisnigri) has been recently detected in Victoria (mid May 2005). The first recorded presence of the aphid in Australian was identified in Tasmania during March 2004. The pest had been introduced into New Zealand in early 2002 and it is believed that due to unusual wind patterns the aphid was ‘blown’ across the Tasman Sea in early 2004 establishing in Tasmania in January/February of that year. There have been plant movement protocols in effect since the 2004 detection with host material requiring treatment and certification prior to despatch to the Australian mainland.