Dear fellow beekeepers,
on Frebruary 16, 2011, the dutch toxicologist Dr. Henk Tennekes gave a lecture at the Institute of Public Health, University of Heidelberg (Germany). This lecture is about "Toxicity as function of exposure time - Risk profile of neonicotinoid insecticides".
It was originally given in german, but yesterday I visited him to record an english version of his lecture for the international beekeeping community.
You can see and listen to this video on youtube:
http://www.youtube.com/watch?v=M4RIDWuCN-A
Greetings from Germany,
Klaus
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