Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

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Gantner M. 2003. LEPIDOPTERA OF HAZEL PLANTS IN POLAND (Part II). THE NATURAL REGULATION OF LEPIDOPTERA SPECIES IN DIFFERENT HABITATS, EJPAU 6(2), #03.
Available Online: http://www.ejpau.media.pl/volume6/issue2/horticulture/abs-03.html

ABSTRACT

The species composition of parasitoids and the level of parasitization of Lepidoptera species feeding on hazel shrubs in different habitat conditions was studied during the three years period. Twenty-two species of parasitic hymenoptera (Hymenoptera, Parasitica) and 2 species of diptera (Diptera, Tachinidae) were collected. Even infrequent treatments of insecticides on hazel plantations have limited the population of parasitoids and reduced their species richness. Ichneumonidae (Hymenoptera, Parasitica) played the greatest role in parasitization of leaf rollers, while Lyphia dubia (Diptera, Tachinidae) and Macrocentrus marginator (Hymenoptera, Parasitica) of Operophtera brumata.

Key words: Hymenoptera parasitica, Diptera, Tachinidae, Lepidoptera, parasitization, hazelnut..

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