Germany and Switzerland are neighboring countries located in the middle of Europe. Both countries have vineyards and orchards with different fruit tree species in which various incidences of phytoplasma diseases are present. Despite similar environmental conditions, regional climatic and biogeographic particularities may influence the epidemiology and ecology of a specific disease and of its vectors. During the COST action a survey based on questionnaires was carried out asking members to report the distribution of phytoplasma diseases and of their vectors in their countries. This chapter describes the current situation in Germany and Switzerland, based on compiled information from questionnaire data during these activities and on additional reports from national researchers.