Details of this species in Western Australia Status: Alien
Invasiveness: Not specified
Occurrence: Reported
Source: Vera et al. 2002 Arrival Date:
Introduction: Species Notes for this Location:
The medfly was first introduced into Western Australia from Europe around 1897. It is now established from Esperance in the south to Derby in the north, with highest populations between Bunbury and Carnarvon. Late in the 1890s, it spread to the eastern states colonizing the East Coast from north of the Clarence river to south of Sydney with infestations also recorded inland as far as Albury and the Murrumbidgee Irrigation Area, and from Melbourne and Tasmania. C. capitata appears to have been displaced gradually from eastern Australia by the Queensland fruit fly Bactrocera (Dacus) tryoni, as the latter expanded into southern parts of its range early in the 20th century. There have been sporadic outbreaks of medfly reported in Adelaide in South Australia (Vera et al.2002). Management Notes for this Location:
The Department of Agriculture, Governement of Western Australia in their advisory on managing C. capitata list out the various management options that can be used for control ((listed under management). A study Meats et al. 2003, which examined data from 75 infestations of the medfly and 286 of the Queensland fruit fly (Qfly) that have occurred in quarantined and normally fly-free zones in Australia for a period of over 20 years, from 1974 to 2000 found that the radius of occurrence of both adult male flies and infested fruit was almost always less than 1 km. In the few cases where there was an isolated detection beyond 1 km of an epicentre it could be treated as and was most likely to be a separate introduction.
Last Modified: 17/05/2005 12:49:01 p.m.
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