Volume 21, Number 6, 1990
|Page(s)||547 - 550|
Seasonality of honey bee colony invasion by Varroa jacobsoni OudF. 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
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