I'd been off tumblr for weeks, but just checked on it, and there was a link to this:
http://www.hobbyfarms.com/farm-industry-news/2012/04/27/bee-advocate-leads-grassroots-effort-against-pesticides.aspx
Neonicotinoids linked strongly to colony collapse disorder.

http://www.change.org/petitions/epa-save-our-bees-and-the-food-we-eat-ban-bayer-s-chemicals-now