Bayer Crop Science Buys Exosect (http://www.pctonline.com/pct-111810-bayer-cropscience-acquires-green-bee-health-product-exosect.aspx)
Just saw this article today for those into treating hives.
stuffs ben in use in UK for sometime - RDY-B
http://www.agri-nova.co.uk/pages/exosect.html (http://www.agri-nova.co.uk/pages/exosect.html)