Detailed brood evaluation under field conditions: advantages and disadvantages

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 op...

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Main Authors: Becker, Roland, Lückmann, Johannes
Format: Article
Language:deu
Published: Julius Kühn-Institut 2018-09-01
Series:Julius-Kühn-Archiv
Subjects:
Online Access:https://www.openagrar.de/receive/openagrar_mods_00040895
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author Becker, Roland
Lückmann, Johannes
author_facet Becker, Roland
Lückmann, Johannes
author_sort Becker, Roland
collection DOAJ
description 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.
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spelling doaj.art-711169b79e3343a48dbb180767a6ab022023-11-27T05:24:12ZdeuJulius Kühn-InstitutJulius-Kühn-Archiv1868-98922199-921X2018-09-01462959810.5073/jka.2018.462.023Detailed brood evaluation under field conditions: advantages and disadvantagesBecker, Roland0Lückmann, Johannes1BASF SE, Limburgerhof, GermanyRIFCON GmbH, Hirschberg, GermanyBee 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.https://www.openagrar.de/receive/openagrar_mods_00040895honey beesdetailed brood assessmentbrood termination ratefield conditions
spellingShingle Becker, Roland
Lückmann, Johannes
Detailed brood evaluation under field conditions: advantages and disadvantages
Julius-Kühn-Archiv
honey bees
detailed brood assessment
brood termination rate
field conditions
title Detailed brood evaluation under field conditions: advantages and disadvantages
title_full Detailed brood evaluation under field conditions: advantages and disadvantages
title_fullStr Detailed brood evaluation under field conditions: advantages and disadvantages
title_full_unstemmed Detailed brood evaluation under field conditions: advantages and disadvantages
title_short Detailed brood evaluation under field conditions: advantages and disadvantages
title_sort detailed brood evaluation under field conditions advantages and disadvantages
topic honey bees
detailed brood assessment
brood termination rate
field conditions
url https://www.openagrar.de/receive/openagrar_mods_00040895
work_keys_str_mv AT beckerroland detailedbroodevaluationunderfieldconditionsadvantagesanddisadvantages
AT luckmannjohannes detailedbroodevaluationunderfieldconditionsadvantagesanddisadvantages