The effect of vegetation in apple orchard edges on the phenology of parasitoids from the subfamily Pimplinae (Hymenoptera, Ichneumonidae) by Hanna Piekarska-Boniecka, Joanna Zyprych-Walczak, Idzi Siatkowski, Tadeusz Barczak

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Parasitisation of Yponomeuta malinellus feeding on Crataegus monogyna in the allotment gardens in the city of Poznań, Poland by Hanna Piekarska-Boniecka, Marta Rzańska-Wieczorek, Idzi Siatkowski, Tadeusz Barczak

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Aphid Assemblages Associated with Urban Park Plant Communities by Tadeusz Barczak, Janina Bennewicz, Maciej Korczyński, Małgorzata Błażejewicz-Zawadzińska, Hanna Piekarska-Boniecka

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Aphids (Hemiptera: Aphidinea) and ground beetles (Coleoptera: Carabidae) in the urban environments of Bydgoszcz and its vicinities by Janina BENNEWICZ, Ewa ZELAZNA, Tadeusz BARCZAK, Malgorzata BLAZEJEWICZ-ZAWADZINSKA, Monika LIK, Jagienka LEWINSKA

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The Dielectric Properties of Worker Bee Homogenate in a High Frequency Electric Field by Leszek Szychta, Piotr Jankowski-Mihułowicz, Elżbieta Szychta, Krzysztof Olszewski, Grzegorz Putynkowski, Tadeusz Barczak, Piotr Wasilewski

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