THE OCCURRENCE OF Panaphis juglandis (Goetze) AND Chromaphis juglandicola (Kalt.) ON WALNUT UNDER THE URBAN CONDITIONS OF LUBLIN
Bożenna Jaśkiewicz
Agricultural University in LublinKatarzyna Kmieć
Agricultural University in LublinAbstract
In the years 2003–2005 studies were conducted in the area of Lublin the aim of which was to study the population dynamics of aphids colonizing the trees of Juglans regia L. in the street and the park sites against the course of weather conditions. The weather in spring probably had no effect on the date of hatching of the larva of fundatrix, which was usually observed in the third 10-days’ period of May. On the other hand, the dry period, heat waves (above 30°C) and stormy rainfalls affected the break in the aphid population observed in July and August. The maximum population of P. juglandis
was found in the second 10-days’ period of June, while that of Ch. juglandicola – at he turn of June and July. The highest number of P. juglandis was observed in 2004, while that of Ch. juglandicola in 2003. In 2003 the dominating species in both sites was Ch. juglandicola, while in the other years of studies it was P. juglandis.
Keywords:
aphids, Panaphis juglandis (Goetze), Chromaphis juglandicola (Kalt.), walnut, weather, urban conditionsReferences
Cichocka E., 1980. Mszyce roślin sadowniczych Polski. PWN, Warszawa, 119 pp.
Jaśkiewicz B., 2003. Zdobniczka orzechowa (Panaphis juglandis Goetze) i zdobniczka podliściowa (Chromaphis juglandicola Kalt.) – mszyce obniżające dekoracyjność orzecha włoskiego. Ochrona Roślin, X, 10, 17–18.
Jaśkiewicz B., Cichocka E., 2004. Aphids on European Walnut (Juglans regia L.) in the urban conditions of Lublin. Aphids and Other Hemipterous Insects, PAS Skierniewice, vol. 10, 35–46.
Szelągiewicz H., 1968. Mszyce – Aphidoidea. Katalog fauny Polski. XXI, 4, 316, PWN, Warszawa.
Agricultural University in Lublin
Agricultural University in Lublin
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