Free Access
Volume 21, Number 6, 1990
Page(s) 547 - 550
Apidologie 21 (1990) 547-550
DOI: 10.1051/apido:19900608

Seasonality of honey bee colony invasion by Varroa jacobsoni Oud

F. Sakofski, N. Koeniger and S. Fuchs

Institut für Bienenkunde (Polytechnische Gesellschaft), FB Biologie der JW Goethe-Universität, Frankfurt/Main, D-6370 Oberursel, Karl-von-Frisch-Weg 2, Germany

Abstract - Invasion of Varroa jacobsoni into Apis mellifera colonies was monitored using Bayvarol-strips for 2 years from April to October. The seasonal profile of mite invasion was similar in all colonies. Invasion was low in spring and increased considerably during summer when it remained at high levels until autumn. Mite invasion into the monitored colonies correlated closely with the infestation level of the apiaries, but varied considerably between monitor colonies.

Key words: Varroa jacobsoni / spread / infestation / seasonality