A single male fruit fly has been detected in a trap in East Launceston this week.
Biosecurity Tasmania detected the Queensland fruit fly on Monday in one of the about 1000 permanent fruit fly traps across Tasmania.
Chief plant health manager Andrew Bishop said there was no cause for alarm.
IN OTHER NEWS:
"The detection of a male Queensland fruit fly has occurred in the past, it does not constitute an outbreak requiring an incursion response and it will not impact on the state's Pest Free Area status," he said.
"Biosecurity Tasmania has responded to this single detection in accordance with Australia's national management arrangements for fruit fly, which includes setting of supplementary traps and checking of fruit trees on other properties in the surrounding area.
"Given this detection, we are reminded that good biosecurity is a shared responsibility relying on the community, industry and government working together."
The fruit fly traps are checked weekly.
Anyone who suspects they have seen fruit fly in Tasmania, or has seen suspicious behaviour, is encouraged to contact Biosecurity Tasmania on 6165 3777.