The review article cited below has a section on "scaling up" lab toxicity to field conditions. It cites researchers who find strong correlation and others with reservations. The 2013 article has an extensive bibliography, and is an excellent jumping off place on the issue of Earthworms and NeoNics. Agron. Sustain. Dev. DOI 10.1007/s13593-013-0151-z Pesticides and earthworms. A review CĂ©line Pelosi, et. al. Freely Downloadable: http://www.researchgate.net/profile/Mickael_Hedde/publication/245023161_Pesticides_and_earthworms._A_review/links/00b7d51d59c0f09766000000 *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html