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Hmyzí škůdci slivoní v Bílých Karpatech
Borýsek, Daniel
The bachelor thesis focuses on plum pests that were studied in the village of Horní Němčí in the White Carpathians in 2022. The monitoring was carried out in a plum orchard on four plum varieties, medium to late Jojo, late Topend, very late Tophit and Haganta. The focus was on the Eurytoma schreineri which is considered an important pest in the area. The occurrence of Eurytoma schreineri was assessed by the number of infested stones and fruits. White glue plates were used to detect sawflies of genus Hoplocampa, and the infes-tation of plums by their larvae was assessed. The occurrence of wood pests was assessed by visual inspection of trees, and the occurrence of overwintering pests by inspection of twigs in early February. In addition to Eurytoma schreineri, the following pests were de-tected in the orchard: sawflies of genus Hoplocampa, Scolytus mali, Parthenolecanium cor-ni, Diaspidiotus pernicious and Panonychus ulmi. Occurrences above the pest threshold were recorded for the Parthenolecanium corni and the Diaspidiotus pernicious. Other pest species were found in low abundance. There were no significant differences in pest infes-tation among varieties. There was a slight trend towards higher infestation of very late varieties by the dark Eurytoma schreineri, Diaspidiotus perniciosus, Panonychus ulmi and sawflies of genus Hoplocampa.
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