More Worker Capped Brood and Honey Bees with Less Varroa Load Are Simple Precursors of Colony Productivity at Beekeepers’ Disposal: An Extensive Longitudinal Survey

In response to the concerns of beekeepers on the decline of honey bee populations on lavender honey flow in the lavender fields of southeast France and the consequent decrease of honey production, our long-term survey (2009–2021) monitored the total weight gain collected by these colonies. This stud...

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Main Authors: Andre Kretzschmar, Alban Maisonnasse
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Insects
Subjects:
Online Access:https://www.mdpi.com/2075-4450/13/5/472
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author Andre Kretzschmar
Alban Maisonnasse
author_facet Andre Kretzschmar
Alban Maisonnasse
author_sort Andre Kretzschmar
collection DOAJ
description In response to the concerns of beekeepers on the decline of honey bee populations on lavender honey flow in the lavender fields of southeast France and the consequent decrease of honey production, our long-term survey (2009–2021) monitored the total weight gain collected by these colonies. This study shows the variations in the total weight gain according to regions, years, populations structure (bee number and quantity of capped brood) and Varroa load. Among these factors, years and regions support one third of the variations over this 13-year survey. At the beginning of the honey flow, capped brood is more important than the number of bees, whereas Varroa load severely limits the performance of the colonies. A threshold of 3 mites/100 bees seems to reflect the upper limit of the Varroa load below which the total weight gain is not affected. This survey provides useful information for the beekeepers to better prepare the colonies for this honey flow and allows them to compare their results obtained with our general description of the total weight gains by year.
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spelling doaj.art-71411703ceca4456bc24e848923bc4352023-11-23T11:32:08ZengMDPI AGInsects2075-44502022-05-0113547210.3390/insects13050472More Worker Capped Brood and Honey Bees with Less Varroa Load Are Simple Precursors of Colony Productivity at Beekeepers’ Disposal: An Extensive Longitudinal SurveyAndre Kretzschmar0Alban Maisonnasse1INRA, BioSP-Biostatistics and Spatial Processes, 228 Route de l’Aérodrome, CEDEX 9, 84914 Avignon, FranceADAPI, Maison des Agriculteurs, 22 Avenue Henri Pontier, CEDEX 1, 13626 Aix-en-Provence, FranceIn response to the concerns of beekeepers on the decline of honey bee populations on lavender honey flow in the lavender fields of southeast France and the consequent decrease of honey production, our long-term survey (2009–2021) monitored the total weight gain collected by these colonies. This study shows the variations in the total weight gain according to regions, years, populations structure (bee number and quantity of capped brood) and Varroa load. Among these factors, years and regions support one third of the variations over this 13-year survey. At the beginning of the honey flow, capped brood is more important than the number of bees, whereas Varroa load severely limits the performance of the colonies. A threshold of 3 mites/100 bees seems to reflect the upper limit of the Varroa load below which the total weight gain is not affected. This survey provides useful information for the beekeepers to better prepare the colonies for this honey flow and allows them to compare their results obtained with our general description of the total weight gains by year.https://www.mdpi.com/2075-4450/13/5/472honey beeproductivitycolonial structureVarroa loadlavender honey flowFrance
spellingShingle Andre Kretzschmar
Alban Maisonnasse
More Worker Capped Brood and Honey Bees with Less Varroa Load Are Simple Precursors of Colony Productivity at Beekeepers’ Disposal: An Extensive Longitudinal Survey
Insects
honey bee
productivity
colonial structure
Varroa load
lavender honey flow
France
title More Worker Capped Brood and Honey Bees with Less Varroa Load Are Simple Precursors of Colony Productivity at Beekeepers’ Disposal: An Extensive Longitudinal Survey
title_full More Worker Capped Brood and Honey Bees with Less Varroa Load Are Simple Precursors of Colony Productivity at Beekeepers’ Disposal: An Extensive Longitudinal Survey
title_fullStr More Worker Capped Brood and Honey Bees with Less Varroa Load Are Simple Precursors of Colony Productivity at Beekeepers’ Disposal: An Extensive Longitudinal Survey
title_full_unstemmed More Worker Capped Brood and Honey Bees with Less Varroa Load Are Simple Precursors of Colony Productivity at Beekeepers’ Disposal: An Extensive Longitudinal Survey
title_short More Worker Capped Brood and Honey Bees with Less Varroa Load Are Simple Precursors of Colony Productivity at Beekeepers’ Disposal: An Extensive Longitudinal Survey
title_sort more worker capped brood and honey bees with less varroa load are simple precursors of colony productivity at beekeepers disposal an extensive longitudinal survey
topic honey bee
productivity
colonial structure
Varroa load
lavender honey flow
France
url https://www.mdpi.com/2075-4450/13/5/472
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