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)

Publication List

Publication List

Publications Franziska Zimmert

Tschus L., Meyer M., Zimmert F., Bonev P.
Agglomeration bonus schemes in Switzerland: A unique national database.
In: Earth Observation (EO) and Spatial Data Science (SDS) workshop. 28. November, Publ. Earth Observation of Agroecosystems (EOA) Team, Agroscope, Zürich (CH). 2024.

Jan P., Zimmert F., Dux D., Blaser S., Gilgen A.
Landwirtschaftliche Produktion und Biodiversitätserhalt: Eine Typologie der gesamtbetrieblichen Landnutzung.
In: 47. Agrarökonomie-Tagung. 19. November, Publ. Agroscope, Tänikon (CH). 2024.

Zimmert F., Jan P., Bonev P.
Effet de la proportion de surface de promotion de la biodiversité sur la diversité des espèces à l’échelle d’une exploitation.
Agrarpolitik Blog, ETH Zürich. Agricultural Economics and Policy Group. 17. Juli, 2024.

Zimmert F., Jan P., Bonev P.
Participation in biodiversity schemes and environmental performance: Overall farm-level impact and spillover effects on non-enrolled land.
European Review of Agricultural Economics, 51, (3), 2024, 690-724.

Bonev P., Meyer M., Zimmert F.
The effect of agglomeration bonus schemes on biodiversity​.
In: FRIES Seminar Series. 11. April, Publ. ETH, ETH Zürich (CH). 2024, 1-38.

Meyer M., Bonev P., Zimmert F.
The effect of agglomeration bonus schemes on biodiversity​.
In: 187th Seminar of the European Association of Agricultural Economists (EAAE). 14 June, Frick. 2024.

Jan P., Zimmert F., Dux D., Blaser S., Gilgen A.
Agricultural production and biodiversity conservation: A typology of Swiss farmers’ land use patterns.
Environmental and Sustainability Indicators, 22, 2024, 1-11.

Zimmert F., Jan P., Bonev P.
Continuous treatment effects of participation in biodiversity schemes on farmers’ ecological performance.
In: 51. Jahrestagung der Schweizerischen Gesellschaft für Agrarwirtschaft und Agrarsoziologie (SGA). 20 April, Eschikon, Lindau (ZH). 2023.

Zimmert F., Zorn A.
Direct payments and on-farm employment: Evidence from a spatial regression discontinuity design.
Q Open, 3, (3), 2023, 1-23.

Zorn A., Zimmert F.
Swiss dairy farming in transition.
Magazine «agroscope», 6, 2022, 6-7.
other Languages: german | french

Jan P., Zimmert F., Dux D.
Farm-level land use strategies in terms of agricultural production and biodiversity conservation in Switzerland.
In: Joint Conference of the Slovenian Association of Agricultural Economists (DAES) and the Austrian Association of Agricultural Economists (ÖGA). 23. September, Ljubljana - Biotechnical Faculty of the University of Ljubljana. 2022.

Zorn A., Zimmert F.
Structural change in the dairy sector: exit from farming and farm type change.
Agricultural and Food Economics, 10, (7), 2022, 1-31.

Zimmert F., Zorn A.
Direct payments and on-farm employment: evidence from a spatial regression discontinuity design.
In: 31. Jahrestagung der Österreichischen Gesellschaft für Agrarökonomie. 2021, Publ. Österreichische Gesellschaft für Agrarökonomie, Wien. 2021, 95-96.

Zimmert F., Zorn A.
Direct payments and on-farm employment: evidence from a spatial regression discontinuity design.
In: Landscape. 20.September, Online-Konferenz. 2021.

Zimmert F., Zorn A.
Direct payments and on-farm employment: evidence from a spatial regression discontinuity design.
In: Tagung der Österreichischen Gesellschaft für Agrarökonomie (ÖGA). 17.09., Online-Konferenz. 2021.

Zimmert F., Zorn A.
Direct payments and on-farm employment: evidence from a spatial regression discontinuity design.
In: Jahrestagung der Gesellschaft für Wirtschafts- und Sozialwissenschaften des Landbaues e.V. 24.September, Online-Konferenz. 2021.

Gazzarin C., Meier L., Zimmert F.
Wirtschaftlichkeit von Rindvieh- und Schweinemastbetrieben mit höherem Tierwohlstandard: Sind die Mehrkosten gedeckt?
Agroscope Transfer, 399, 2021.
other Languages: french

Gazzarin C., Zimmert F.
Was ist uns das Tierwohl wert?: Berechnungen aus der Schweiz.
Berichte über Landwirtschaft, 99, (1), 2021, 1-27.

Zorn A., Zimmert F.
Der Strukturwandel in der Schweizer Milchviehhaltung: Ausstieg aus der Landwirtschaft und Wechsel des Betriebstyps.
In: Schweizerischen Gesellschaft für Agrarwirtschaft und Agrarsoziologie (SGA) - Jahrestagung. 18. März, Publ. Schweizerischen Gesellschaft für Agrarwirtschaft und Agrarsoziologie (SGA), online. 2021, 1-17.

Zorn A., Zimmert F.
Structural adjustment of Swiss dairy farms: Farm exit and farm type change.
In: 60. Jahrestagung der Gesellschaft für Wirtschafts- und Sozialwissenschaften des Landbaues e. V. 23. - 25. September, Publ. GEWISOLA, Halle (DE). 2020, 199-214.

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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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