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

Lamparski R. , Wawrzyniak M. 2004. EFFECT OF WATER EXTRACTS FROM GERANIACEAE (Geraniaceae) PLANTS ON FEEDING AND DEVELOPMENT OF COLORADO POTATO BEETLE (Leptinotarsa decemlineata Say), EJPAU 7(2), #01.
Available Online: http://www.ejpau.media.pl/volume7/issue2/agronomy/abs-01.html

ABSTRACT

There were tested water extracts from selected Geraniaceae plants. It was observed that the plant extracts investigated inhibit feeding and development of Colorado potato beetle. The greatest antifeedant activity towards Colorado potato beetles and their larvae was noted for Pelargonium x hortorum Bailey and Geranium sanquineum L. extracts. The Pelargonium x hortorum Bailey extract added to food showed unfavourable effect on the development of female reproductive organs and significantly inhibited the number of eggs laid, however it showed effective neither towards the period of winter diapause nor towards spring emergence of beetles. The highest effectiveness under field conditions was recorded for extract from Erodium cicutarium L.

Key words: Colorado potato beetle, Geraniaceae, plant extracts.

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