The soil pathogenic fungus Phytophthora cactorum causes the most dangerous diseases occurring in strawberry plantations—strawberry crown rot and leather rot. Modern biotechnology methods, e.g., vitro culture selection molecular diagnostics can be utilized of cultivars that are less susceptible or resistant to diseases. In this study, four microclones: ‘Elsanta’, ‘Feltar’, ‘Teresa’ ‘Plena SVdT’ ...