Interceptions of Bactrocera dorsalis in Austria
Surveys for Bactrocera species, using fruit fly traps combined with highly attractive lures, were conducted in Vienna and other Austrian provinces from 2012 to 2018. Traps were placed in 40 sites including 16 in Vienna. Identification of the caught flies was carried out on a morphological basis, confirmed with molecular diagnostic methods and supported by sequencing analyses. Nine adult individuals of Bactrocera dorsalis sensu lato (Diptera: Tephritidae – EPPO A1 List), were trapped at 4 sites in Vienna, between 2012 and 2018. All findings were in urban areas in Vienna. No specimens were found in fruits or traps in agricultural areas outside Vienna. Because the Austrian climate and environment are unsuitable for the establishment of B. dorsalis and molecular sequencing showed that the specimens caught were from genetically different origins, it is considered that the findings in Vienna are linked to repeated entries of larvae in infested fruit and not to an outbreak.
The pest status of Bactrocera dorsalis in Austria is officially declared as: Absent, confirmed by survey.
Sources
Egartner A, Lethmayer C, Gottsberger RA, Blümel S (2019) Survey on Bactrocera spp. (Tephritidae, Diptera) in Austria. Bulletin OEPP/EPPO Bulletin 49(3). https://doi.org/10.1111/epp.12604
NPPO of Austria (2019-05).