Occurrence of marmelade fly Episyrphus balteatus (Deg.) (Diptera, Syrphidae) in apple orchards with integrated production of fruit and their surroundings.

摘要

The study was carried out in two orchards with integrated fruit production situated near Poznan. The first one was the orchard of Experimental Farm and Orchard at Przybroda and the other one was the orchard of Agricultural Corporation in Gorzyczki. Two areas were chosen for the study in each location: the orchard and surrounding shrubs. In Przybroda the experiment was carried out using 4 years (1999-2001 and 2004), in Gorzyczki in 2 years (2000-2001). The research was carried out by the method of yellow Moericke traps. During the study 2 728 specimens of the Episyrphus balteatus (Deg.) were caught.