Thymol

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Thymol

thymolbehandlung_20170128

In the 1990s, the Bee Research Centre took part in a screening programme testing the potential effectiveness of over 100 essential oils and essential oil components against the varroa mite. Although sage, hyssop and thyme oils proved interesting, only thymol has been used in acaricide products. Thymol treatments require little effort, and there are a variety of preparations on the market. The advantages and drawbacks of thymol use are listed in the articles "Apilife VAR: A new varroacide with thymol as the main ingredient" and "THYMOVAR for Varroa control".

Use of essential oils for the control of Varroa jacobsoni (Oud.) in honey bee colonies (PDF, 1 MB, 20.01.2017)
A. Imdorf, S. Bogdanov, R. Ibáñez Ochoa, N. W. Calderone (1999)

Philippe Jeanneret

Institutional Repository Agroscope

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Philippe Jeanneret

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Biologe
Dr. sc.

Research Group

  • 22.00.19.06 Agricultural Landscape and Biodiversity

Role

Senior Scientist

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Biodiversity, semi-natural habitats and food production

Philippe Jeanneret

Agroscope
Reckenholzstrasse 191
8046 Zürich
Switzerland

Phone +41 58 46 87228

Location Reckenholz

Philippe Jeanneret

Philippe Jeanneret

Activities

Project leadership

Initiator of the "PestiRed" project - reduction of pesticide use in field crop farms with an agro-ecological approach

Alpine Entomology (Journal) - Editorial board member, subject editor

Swiss Entomological Society (committee member)

QuESSA EU FP7 (completed 2017) - Quantification of Ecological Services for Sustainable Agriculture​ (workpackage leader) www.quessa.eu

CANTOGETHER EU FP7 (completed 2016) - Crops and ANimals together : Innovative sustainable mixed farming systems (task leader) www6.rennes.inra.fr/umrsas_eng/Research/Research-projects/European-projects/CANTOGETHER-2012-2015

BioBio EU FP7 (completed 2012) - Biodiversity Indicators for European Farming Systems (deputy coordinator, workpackage leader) www.biobio-indicator.org

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Apilife VAR: A new varroacide with thymol as the main ingredient (PDF, 103 kB, 20.01.2017)
A. Imdorf, S. Bogdanov, V. Kilchenmann, C. Maquelin (1994)

"THYMOVAR" for Varroa control (PDF, 75 kB, 27.01.2017)
F. Bollhalder (1998)


Although the use of thymol leads to residues in the wax and honey, these are negligible from a toxicological viewpoint. Since about 2008 the use of thymol-based products has been declining in Switzerland, and beekeepers making use of these products have tended to experience greater winter losses than those using e.g. formic acid.

Thymol residues in wax and honey after Apilife VAR treatment (PDF, 757 kB, 14.09.2016)
S. Bogdanov, A. Imdorf, V. Kilchenmann (1998) 

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