The map above is from a report complied by Martin Damus of the Canadian Food Inspection Agency and hosted on the website for the Oregon spotted wing drosophila workgroup. It illustrates the areas with temperature suitable for spotted wing drosophila survival. The methods used to develop this map are summarized in the report and rely heavily on data from the fly's native range, but it is a striking illustration that the eastern US is potentially at greater risk that the west. This greater potential risk has not necessarily translated to greater emphasis on this on preventing and/or detecting this pest. I was impressed with the steps taken by the Oregon group and will be following their activities over the winter.
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