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Publication
Featured researches published by Roland Becker.
Julius-Kühn-Archiv | 2018
Roland Becker; Johannes Lückmann
Bee brood studies under semi-field conditions according to OECD GD 75 display a strong variability of the brood termination rates (BTRs) as the key endpoint. Therefore, the ICP-PR Bee Brood Group considered the performance of EPPO 170 field studies using the OECD GD 75 bee brood evaluation as one option to achieve more reliable BTR data. This approach was envisaged already some years ago and used for several years. However, broader data sets supporting the benefit of this combined methodology were still lacking. The analysis of current field studies performed since 2012 indicate that control BTRs were approximately half the size compared to values observed under semi-field conditions. Moreover, results give a strong indication that the BTR values under field conditions are more reliable and less variabel. Therefore, the combined method is a valuable tool to investigate potential effects of a plant protection product on the bee brood to refine the risk under realistic exposure conditions.
Julius-Kühn-Archiv | 2012
Jens Pistorius; Tricia Brobyn; Peter Campbell; Rolf Forster; Jose-Anne Lortsch; Franck Marolleau; Christian Maus; Johannes Lückmann; Hiroyuki Suzuki; Klaus Wallner; Roland Becker
Julius-Kühn-Archiv | 2012
Jens Pistorius; Roland Becker; Johannes Lückmann; A. Schur; M. Barth; L. Jeker; S. Schmitzer; W. von der Ohe
Julius-Kühn-Archiv | 2012
Jens Pistorius; Klaus Wallner; Ina Joachimsmeier; Jana E. Reetz; Detlef Schenke; Werner von der Ohe; Ingrid Illies; Christian Maus; T. Block; Roland Becker
Julius-Kühn-Archiv | 2010
Roland Becker; Christine Vergnet; Christian Maus; Jens Pistorius; Ingo Tornier; Selwyn Wilkins
Julius-Kühn-Archiv | 2012
Roland Becker
Julius-Kühn-Archiv | 2010
Gavin Lewis; Mike Coulson; Christine Vergnet; Christian Maus; Helen Thompson; Roland Becker; Dick Rogers; Ingo Tornier
Julius-Kühn-Archiv | 2018
Bronislawa Szczesniak; Ed Pilling; Sigrun Bocksch; Roland Becker; Johannes Lückmann
Julius-Kühn-Archiv | 2018
Axel Dinter; Anne Alix; Roland Becker; Peter Campbell; Mark Miles; Ed Pilling; Natalie Ruddle; Amanda Sharples; Gabe Weyman; Laurent Oger
Julius-Kühn-Archiv | 2018
Miles Mark; Anne Alix; Roland Becker; Mike Coulson; Axel Dinter; Laurent Oger; Ed Pilling; Amanda Sharples; Gabe Weyman