Winter temperature and Flavescence dorée vector ecology

Abstract: The invasive leafhopper Scaphoideus titanus is spreading in Europe from ca. 35 to50°N. According to the origin area of this insect, we hypothesized that its Southern limit ofdistribution could partly be the consequence of the lack of cold temperatures that are essential tobreak egg diapause. We investigated the effects of winter incubation temperature on hatching andpost hatching development. Here, we conclude that winter temperatures could be one from otherkey factors explaining the weak colonization of Southern vineyards in Europe by S. titanus.