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.

Copyright © Wydawnictwo Akademii Rolniczej we Wroclawiu, ISSN 1505-0297

Jaśkiewicz B. 2004. APHIDS (Homoptera, Aphidodea) INHABITING THE SHRUBS OF Cotoneaster divaricatus Rehder et E. H. Wilson IN THE URBAN GREEN AREA OF LUBLIN. PART II. DOMINATION AND FREQUENCY OF APHIDS, THEIR NATURAL ENEMIES AND THE INJURIES CAUSED BY APH, EJPAU 7(2), #2.
Available Online: http://www.ejpau.media.pl/volume7/issue2/horticulture/abs-2.html

ABSTRACT

Three aphids species: Aphis pomi De Geer, Aphis fabae Scop. and Rhopalosiphum insertum (Walk.) were observed on the shrubs of Cotoneaster divaricatus Rehder et E.H. Wilson in the urban habitat of Lublin. A. pomi was dominated species in all years of study in both sites and it clearly decreased decorative values of cotoneaster shrubs, caused deformations of young shoots and leaves. Predators and parasitoids of I and II grades were observed in aphids colonies but they had no significant effect on limiting the aphid population.

Key words: aphids, domination, frequency, natural enemies, injuries caused by aphids..

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