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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 Lucie Tintrop

Tintrop L., Wacker S., Blackford M., Dienesné Nagy A., Deneulin P., Bieri S., Bourdin G., Fuchsmann P.
Aroma profiling and olfactometric comparison of Chasselas wines at different ages.
In: 17th International Weurman Flavour Research Symposium. 24 September, Hrsg. Wageningen University & Research, Wageningen (NL). 2024.

Tintrop L., Fuchsmann P.
Dynamic Headspace Vacuum In-Tube Extraction and GC‑MS for analyzing volatile compounds in various matrices.
In: 3rd European Sample Preparation Conference. 18 September, Hrsg. European Chemical Society (EuChemS), Chania (GR). 2024.

Tintrop L., Baumeyer Brahier A., Fuchsmann P.
Identification and comparison of volatile organic compound profiles produced by different types of microalgae cultures.
In: 2nd D-A-CH Algen Summit. 7-8 May, Hrsg. Agroscope, Bern. 2024.

Tintrop L.
Wie homogen ist ein Schweizer Hartkäselaib?
In: Cheese & Science. 11. Juni, Hrsg. Agroscope, Bern. 2024, 1-17.

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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