Sampling potentially vector insects of Xylella fastidiosa in France showed that the most common potential vectors in France are Philaenus spumarius, Cicadella viridis, Neophilaenus campestris and Cercopis vulnerata. It was confirmed that P. spumarius is the most common species in France among potential vector species. Four methods to collect insects in the fields have been tested. No method is specific to Xf vectors. The method, which combines the most abundant harvest and specificity, is the sweeping net. The Barber trap is only suitable for leafhoppers living at the soil surface and yellow pan trap and sticky traps are not sufficiently specific.