First report of Drosophila suzukii in the Netherlands
The presence of Drosophila suzukii (Diptera: Drosophilidae – EPPO A2 list) was detected for the first time in the Netherlands at the beginning of October 2012. An official survey for D. suzukii was initiated at the end of September 2012 using McPhail traps filled with 100 ml of a mixture (1:1) of red wine and vinegar with a few drops of detergent. Traps were placed in the southern half of the Netherlands, in private gardens (10 traps) and in forests (2 traps), and they were checked on a weekly basis for a maximum period of 4 weeks. D.;suzukii was captured in 8 traps out of 12, in both private gardens and forests. In total 9 adult females and 13 males were captured. No particular damage was noticed on fruit or plants. The origin of the introduction of D. suzukii in the Netherlands is unknown but it is presumed that both natural spread and trade of infested fruits from other parts of Europe are the most probable pathways. In view of the already wide distribution of the pest in Europe, no phytosanitary measures are considered in the Netherlands at the present time.
The pest status of Drosophila suzukii in the Netherlands is officially declared as: Present, at low prevalence.
Sources
NPPO of the Netherlands (2012-11).