Prof. Dr. em. Frans Jacobs - Phytofar
Prof. Dr. em. Frans Jacobs - Phytofar
Prof. Dr. em. Frans Jacobs - Phytofar
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Honingbijen<br />
Verdwijnziekte en bijensterfte in België:<br />
Land Sterftecijfer (%)<br />
Winter 2005-2006 22,4<br />
Winter 2006-2007 23,5<br />
Winter 2007-2008 27,5<br />
Winter 2008-2009 21,0<br />
Winter 2009-2010 26,0
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