DPI&F veterinary officer Jack Shield said Biosecurity Queensland was working on the basis that there was at least one more hive in the Cairns area.
"One of the techniques that may assist in the search is bee-lining," Mr Shield
"This is a method of locating a bee nest by following the working bees from flowers to nest."The DPI&F
found five nests within three weeks in May, and a surveillance team was appointed to monitor the Cairns area for 12 months.The latest finding was in the same locality as the previous detections.
"Though it is disappointing that there is evidence of more bees, it is reassuring that the monitoring system we put in place is working," Mr Shield
The Apis cerana found in May was the Java strain, which did not carry the appropriately-named Varroa destructor mite.
However, Apis cerana was still not welcome because it aggressively competed with the European honey bee (Apis mellifera) and native honey bees for food.Mr Shield
called on businesses in the Portsmith area to remain vigilant and contact DPI&F
urgently if they noticed any unusual bees or congregations of bees on their premises.
"The initial success of the response in May could not have been achieved without the assistance and support of Portsmith businesses," he
"Hives were found in boat masts, boat holds, cable wheels and in between concrete blocks," Mr Shield