You might try google scholar: In this particular study they did find some insecticidal activity with penthiopyrad. http://www.researchgate.net/profile/Johannes_Lueckmann/publication/272174339_Insecticidal_activity_of_a_PPP_as_a_criterion_to_trigger_laboratory_studies_with_nonApis_bees_Make_a_BeeCision!_Material__Methods_Results_Active_substance_NTA_(Tier_I)_Screening_honeybee_Insecticidal_activity_A/links/54dde1fd0cf23bf20438d386.pdf *********************************************** 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