A case study on the occurrence of pyrimethanil, cyprodinil and cyflufenamid residues in soil and on apple leaves, blossoms and pollen, and their transfer by worker bees to the hive oleh Bartosz Piechowicz, Aleksandra Kuliga, Damian Kobylarz, Anna Koziorowska, Lech Zaręba, Magdalena Podbielska, Iwona Piechowicz, Stanisław Sadło