In pathogens where isolates with reduced sensitivity were detected under field conditions, the current resistance status of the population is shifting as disease pattern/severity and product usage across multiple modes of action changes from year to year. Monitoring at the regional level in specific crop/pathosystems is crucial to understand the resistance status at any given time. As mentioned above, it is also important to understand how the different members of the SDHI group will respond to specific target site mutations within that species and the frequency of those mutations in the field population when deciding on specific product usage