Fighting the threat from spotted wing drosophila in Swiss stone fruits: where from and where to from there


Abstract: Ever since the first detection of spotted wing drosophila (Drosophila suzukii) in Switzerland in 2011, baited traps deployed in and around sensitive crops across the country provide records of occurrence and estimates of abundance at different spatial scales. We report results from a local monitoring survey spanning twelve representative habitats. Adult capture data gathered between January 2013 and September 2014 are discussed in relation to prevailing weather conditions. On the basis of commonly cultivated host plants grown at selected sites, we infer the temporal dynamics of crop infestation. Finally, we address issues relating to the use of recommended monitoring practices to inform management decisions.

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