title: The Challenge: Assessment of risks posed by systemic insecticides to hymenopteran pollinators: New perception when we move from laboratory via (semi-)field to landscape scale testing?
authors.affiliation: tier3 solutions, Leichlingen, Germany.
authors.forename: Fred
authors.initials: F
authors.lastname: Heimbach
authors.affiliation: Bayer CropScience, Monheim, Germany.
authors.forename: Richard
authors.initials: R
authors.lastname: Schmuck
authors.affiliation: Institut für Bienenkunde Oberursel, Polytechnische Gesellschaft, Goethe-Universität Frankfurt am Main, Frankfurt am Main, Germany.
authors.forename: Bernd
authors.initials: B
authors.lastname: Grünewald
authors.affiliation: Syngenta Jealotts Hill, Bracknell, Berkshire, United Kingdom.
authors.forename: Peter
authors.initials: P
authors.lastname: Campbell
authors.affiliation: US Environmental Protection Agency, Office of Pesticide Programs, Washington DC.
authors.forename: Keith
authors.initials: K
authors.lastname: Sappington
authors.affiliation: US Environmental Protection Agency, Office of Pesticide Programs, Washington DC.
authors.forename: Thomas
authors.initials: T
authors.lastname: Steeger
authors.affiliation: Office of the Chief Scientist, Australian Pesticides and Veterinary Medicines Authority, Canberra, ACT, Australia.
authors.forename: Les P
authors.initials: LP
authors.lastname: Davies