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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)

Publikationen Elisabet Marti Serrano

Fritsch L., Wagner E., Aeschlimann T., Marti Serrano E.
When the solution is part of the problem - A Listeria monocytogenes case study of an alpine cheese dairy.
In: IAFP European Symposium. 30 April, Hrsg. IAFP, Geneva. 2024.

Kläui A., Bütikofer U., Naskova J., Wagner E., Marti Serrano E.
Fresh produce as a reservoir of antimicrobial resistance genes: A case study of Switzerland.
Science of the Total Environment, 907, 2024, 1-12.

Olivares-Pacheco J., Marti Serrano E., Rodriguez-Rubio L., Calero-Caceres W.
Editorial: Antimicrobial resistance in aquatic environments, Vol II.
Frontiers in Microbiology, 14, 2023, 1-3.

Felix B., Sevellec Y., Palma F., Douarre P. E., Felten A., Radomski N., Mallet L., Blanchard Y., Leroux A., Marti Serrano E., Leblanc J. C., Guillier L., Roussel S.
A European-wide dataset to uncover adaptive traits of Listeria monocytogenes to diverse ecological niches.
Scientific Data, 9, (190), 2022, 1-12.

Calero-Cáceres W., Marti Serrano E., Olivares-Pacheco J., Rodriguez-Rubio L.
Editorial: Antimicrobial resistance in aquatic environments.
Frontiers in Microbiology, 13, 2022, 1-3.

Fritsch L., Imhof R., Hummerjohann J., Marti Serrano E.
Genomic characterization of long-time persistent Listeria monocytogenes strains in dairy facilities.
In: Genomic characterization of long-time persistent Listeria monocytogenes strains in dairy facilities. 02.11., Lausanne, Effost. 2021.

Marti Serrano E., Osorio V., LIorca M., Paredes L., Gros M.
Chapter 5: Environmental risks of sewage sludge reuse in agriculture.
In: Advances in Chemical Pollution, Environmental Management and Protection. Vol. 6, Hrsg. Elsevier, 2020, 137-180.

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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