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)

Liste de publications

Liste de publications

Publications Bastien Hayoz

Hayoz B., Schori F.
Comment gérer la croissance de l'herbe avec des pluviométries irrégulières.
Journal Agri, 25 avril, 2025, 21.

Aeby P., Frick R., Hayoz B., Lemaître E., Manzocchi E., Vonlanthen T.
Valorisation du sorgho multicoupes.
ADCF. 10.4.5, 2024, 4 pp.

Manzocchi E., Rothacher M., Vonlanthen T., Hayoz B., Dubois S., Hiltbrunner J., Dohme-Meier F.
Digestibilité apparente in vivo de l'ensilage de sorgho fourrager.
Dans: Rencontres Recherches Ruminants (27e édition). 4 - 5 décembre, Ed. IDELE / INRAE, Paris (FR). 2024, 521.

Manzocchi E., Viry L., Eggerschwiler L., Hayoz B., Schlegel P., Dohme-Meier F.
Affouragement en vert de sorgho multi-coupes : Effets sur l'ingestion, la production, la composition et l'aptitude à la coagulation du lait.
Dans: Rencontres Recherches Ruminants (27e édition). 4 - 5 décembre, Ed. IDELE / INRAE, Paris (FR). 2024, 520.

Morel I., Dohme-Meier F., Siegenthaler R., Hayoz B., Xavier C., Lerch S.
Protein self-sufficiency and nitrogen use efficiency in beef-on-dairy crossbred bulls.
Dans: Book of Abstracts of the 75th Annual Meeting of the European Federation of Animal Science. 1 September, Ed. EAAP, Firenze. 2024, 821-821.

Manzocchi E., Viry L., Eggerschwiler L., Hayoz B., Schlegel P., Dohme-Meier F.
Green-cut sorghum fed indoor to dairy cows: A strategy to mitigate herbage shortages?
Dans: 75th Annual Meeting of the European Federation of Animal Science. 1-5 September, Ed. EAAP, Florence (IT). 2024.

Hayoz B.
Wie steht es um die Gärqualität von Sorghumsilagen?
Silo-Zytig, 137, 2024, 13-14.

Kasper-Völkl C., Schori F., Ampuero S., Hayoz B., Siegenthaler R., Eggerschwiler L.
The genetic background of nitrogen use efficiency and methane emissions in Swiss dairy cows: Ongoing activities at Agroscope.
Dans: Agro-Vet Strickhof-Tagung. 7. November, Lindau. 2023, 1.

Manzocchi E., Hayoz B., Rothacher M., Frick R., Hiltbrunner J., Vonlanthen T.
Multidisciplinary approach on the introduction of Sorghum spp. into Swiss forage production systems.
Dans: Global Sorghum Conference - Sorghum in the 21st Century. 5 to 9 June, Montpellier. 2023, 300.

Hayoz B., Morel I., Dieudonné A., Rothacher M., Siegenthaler R., Dohme-Meier F., Lerch S.
Feeding behavior, methane emission and digestibility of crossbred heifers along compensatory growth.
Dans: EAAP 2023. 30. August, Ed. European Federation of Animal Science, Lyon. 2023, 1.

Hayoz B., Rothacher M., Manzocchi E.
Wie steht es um die Gärqualität von Sorghumsilagen?
Silo-Zytig, August, 2023.

Hayoz B., Morel I., Dieudonné A., Rothacher M., Siegenthaler R., Dohme-Meier F., Lerch S.
Feeding behavior, methane emission and digestibility of crossbred heifers along compensatory growth.
Dans: EAAP Conference. 07 March, Lyon. 2023, 1.

Kasper-Völkl C., Schori F., Ampuero S., Hayoz B., Siegenthaler R., Eggerschwiler L.
Ongoing research to investigate the genetic background of nitrogen use efficiency and methane emissions of Swiss dairy cows.
Dans: ICAR Meeting. 24. May, Toledo. 2023.

Morel I., Dohme-Meier F., Siegenthaler R., Hayoz B., Xavier C., Lerch S.
Protein autonomy and nitrogen use efficiency in dairy x meat crossbred bulls.
Dans: Current research in Switzerland in the field of animal sciences - Summaries of the posters. 19 April, Ed. SVT, Zollikofen. 2023, 21.

Morel I., Dohme-Meier F., Siegenthaler R., Hayoz B., Xavier C., Lerch S.
Efficience d'utilisation de l'azote chez des taurillons croisés recevant des régimes mixtes présentant une haute autonomie alimentaire et protéique.
Dans: 26è 3R - Rencontres, Recherches, Ruminants. 7 - 8 décembre, Ed. INRA-IDELE, Paris. 2022, 135.

Morel I., Dohme-Meier F., Siegenthaler R., Hayoz B., Xavier C., Lerch S.
Efficience d’utilisation de l’azote chez des taurillons croisés recevant des régimes mixtes présentant une haute autonomie alimentaire et protéique.
Dans: 26èmes Rencontres autour des Recherches sur les Ruminants (3R). 7. décembre, Ed. INRAE & IDELE, Paris. 2022.

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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