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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Piesik D. 2004. SEASONAL ABUNDANCE OF INSECTS OCCURRING ON RUMEX CONFERTUS WILLD., AS AN INTERESTING APPROACH TO THE USE OF BIOLOGICAL CONTROL AGENTS, EJPAU 7(2), #05.
Available Online: http://www.ejpau.media.pl/volume7/issue2/biology/abs-05.html

ABSTRACT

Field research was conducted to determine insects occurring on Rumex confertus Willd. The experiments were carried out in 1997, 1998, 1999 and additionally in 2001 from April to late September. The field trials were located in the natural habitat of R. confertus on meadows near Vistula river; in Bydgoszcz (53⁰13^'N, 18⁰15^'E) and Toruń (53⁰2^'N, 18⁰61^'E) vicinities. Mossy sorrel was injured by the following pests in order of feeding impact: Mamestra dissimilis Knoch., Rhinoncus pericarpius L., Phyllobius virideaeris Laich., and Phyllobius maculicornis Germ. The losses of R. confertus biomass were recorded throughout the whole growing season until the plants desiccating. Two generations of M. dissimilis in both locations were recorded. In case of R. pericarpius and Phyllobius spp. one generation was observed.

Key words: biological control, Rumex confertus Willd., mossy sorrel, insects, Mamestra dissimilis Knoch., Rhinoncus pericarpius L., Phyllobius spp..

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