EPPO Global Database

EPPO Reporting Service no. 10 - 2011 Num. article: 2011/213

Drosophila suzukii continues to spread in the USA and Canada

In mainland USA, Drosophila suzukii (Diptera: Drosophilidae – EPPO A2 List) was first detected in California in 2008 and subsequently in Oregon, Washington and Florida (see EPPO RS 2010/007). In 2010, it was found in Louisiana, North Carolina, South Carolina and Utah. In 2011, its presence was also reported from Maryland, Michigan, Montana, New Jersey, Pennsylvania, Virginia, and Wisconsin.
The situation of Drosophila suzukii in the USA can be described as follows: Present, first detected in California in 2008, now recorded in California, Florida, Hawaii, Louisiana, Maryland, Michigan, Montana, New Jersey, North Carolina, Oregon, Pennsylvania, South Carolina, Utah, Virginia, Wisconsin, and Washington.

In Canada, D. suzukii was first detected in 2009 in British Columbia (see EPPO RS 2010/007). The presence of the pest was then reported in Alberta, Manitoba, Québec and Ontario.
The situation of Drosophila suzukii in Canada can be described as follows: Present, first detected in British Columbia in 2009, now recorded in Alberta, British Columbia, Manitoba, Ontario, and Québec.

It is noted that although D. suzukii has been recorded from many US states and Canadian provinces, it has not established in all areas, and the main economic damage is restricted to the western part of North America.


Hauser M (2011) A historic account of the invasion of Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) in the continental United States, with remarks on their identification. Pest Management Science 67(11), 1352–1357.
Lee JC, Bruck DJ, Dreves AJ, Ioriatti C, Vogt H, Baufeld P (2011) In focus: spotted wing drosophila, Drosophila suzukii, across perspectives. Pest Management Science 67(11), 1349–1351.
Ministère de l’Agriculture, des Pêcheries et de l’Alimentation. Québec. Laboratoire de diagnostic en phytoprotection. La drosophile à ailes tachetées. Fiche rédigée par Michèle Roy, Jean-Philippe Légaré, Mario Fréchette (Mai 2011). http://www.agrireseau.qc.ca/petitsfruits/navigation.aspx?sid=1206