Population dynamics in tobacco blue mold incidences as a consequence of pathogen control and virulence performance of Peronospora tabacina phenotypes

► First population study on tobacco blue mold incidences in Europe over 10 years. ► PCR-based detection of the two currently recognized subpopulations. ► New phenotypic characters of the two subpopulations. ► First experiment to test population shifts due to virulence differences.