The Occurrence of Tortricids (Lepidoptera, Tortricidae) in Apple Orchards of the Lublin Area
Izabela Kot
Department of Entomology, Agricultural University of LublinBożenna Jaśkiewicz
Department of Entomology, Agricultural University of LublinAbstract
The studies were carried out in the years 1999–2001 in three apple orchards in the vicinity of Lublin. The purpose of these studies was to establish the species composition and the dates of occurrence of particular developmental stages of some leaf tortricids colonizing apple orchards. The studies found out the presence of 13 species of leaf tortricids. The presence of the first caterpillars of tortricids was observed at the end of April and those were the larvae of Spilonota ocellana (Den. et Schiff.), Hedya nubiferana (Haw.) and the caterpillars of Adoxophyes orana (Fisch. v. Rösl.) first generation. The shortest flight of moths was observed in the case of Pandemis cerasana (Hbn.) and it lasted about 4 weeks, while the longest was found for Acleris holmiana (L.) – 7 weeks. The occurrence of the second generation was observed in the case of Pandemis heparana (Den. et Schiff.), Pandemis cerasana (Hbn.) and Adoxophyes orana (Fisch. v. Rösl.). The caterpillars of the second generation were observed between the third 10 days’ period of July and the first of August. The flight of the second generation lasted from one to three weeks, depending on the species.
Keywords:
tortricids, apple orchards, developmental stagesDepartment of Entomology, Agricultural University of Lublin
Department of Entomology, Agricultural University of Lublin
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