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)

Publikationsliste

Publikationsliste

Publikationen Klaus Jarosch

Jiang M., Crous K. Y., Carrillo Y., Macdonald C. A., Anderson I. C., Boer M. M., Farrell M., Gherlenda A. N., Castañeda-Gómez L., Hasegawa S., Jarosch K., Milham P. J., Ochoa-Hueso R., Pathare V., Pihlblad J. und weitere
Microbial competition for phosphorus limits the CO2 response of a mature forest.
Nature, 630, 2024, 660-665.

Jiang M., Medlyn B. E., Wårlind D., Knauer J., Fleischer K., Goll D. S., Olin S., Yang X., Yu L., Zaehle S., Zhang H., Lv H., Crous K. Y., Carrillo Y., Macdonald C. und weitere
Carbon-phosphorus cycle models overestimate CO2 enrichment response in a mature Eucalyptus forest.
Science Advances, 10, (27), 2024.

Oberholzer S., Jarosch K., Harder N., Steffens M., Ifejika Speranza C.
Cover cropping in organic reduced tillage systems: Maximizing soil cover or plant above ground biomass input?
European Journal of Soil Science, 75, (6), 2024, Artikel e70012.

Krause H.-M., Mäder P., Fliessbach A., Jarosch K., Oberson A., Mayer J.
Organic cropping systems balance environmental impacts and agricultural production.
Scientific Reports, 14, 2024, Artikel 25537.

Jarosch K., Bütikofer N., Heller O., Liebisch F., van der Heijden M., Merbold L.
Update und Input aus EJP SOIL.
In: Thematisches Netzwerk Boden - 3. Gesamtnetzwerktreffen. 3. September, Hrsg. AGRIDEA, Zollikofen. 2024.

Roberti G., Bragazza L., Bretscher D., den Hond-Vaccaro C., Jarosch K., Keel S., Mariotte P., Merbold L., Reissig L., Walder F., Herzog F., Kay S.
Evaluation der Rolle von Agroforst in einer gesamtheitlichen Landwirtschafts- und Ernährungspolitik.
Agrarforschung Schweiz, 15, 2024, 199-206.
weitere Sprachen: französisch

Hofer S., Hirte J., Mayer J., Jarosch K.
Soil-, management-, and climate-related drivers of yield stability in organic and conventional farming systems.
In: EJP Soil Annual Science Days. 10 June, Vilnius (LT). 2024, 1.

Oberson A., Jarosch K., Frossard E., Hammelehle A., Fliessbach A., Mäder P., Mayer J.
Higher than expected: Nitrogen flows, budgets, and use efficiencies over 35 years of organic and conventional cropping.
Agriculture, Ecosystems & Environment, 362, 2024, 1-15.

Oberholzer S., Herrmann C., Bodenhausen N., Krause H.-M., Mestrot A., Ifejika Speranza C., Jarosch K.
No effect on biological or chemical soil properties when amended with effective microorganisms for improved cover crop decomposition.
Applied Soil Ecology, 197, 2024, 1-13.

Rubeaud C., Kay S., Jarosch K., Walder F.
Impact of age and diversity of Swiss agroforestry systems on soil health.
In: 7th European Agroforestry Conference. 29. May, Brno. 2024.

den Hond-Vaccaro C., Jarosch K., Kay S., Herzog F.
How resilient are European agroforestry systems to climate change? What experts think.
In: EURAF 2024. 28-31 May, Hrsg. Mendel University in Brno, Brno. 2024, 68-69.

Hofer S., Herzog F., Hirte J., Mestrot A., Oberholzer S., Kandeler E., Halswimmer H., Jarosch K.
How do trees affect soil organic carbon (SOC) stocks in a 13-years old Swiss agroforestry system?
In: Jahrestagung 2024. 21 March, Hrsg. BGS, SGP, SGPW, Zollikofen. 2024, 1.

Rubeaud C., Kay S., Jarosch K., Walder F.
Soil health in Swiss agroforestry systems.
In: Jagrestagung SGP/SSP BGS/SSP SGPW/SSA. 21 March, Zollikofen. 2024, 1.

Jarosch K., Hirte J., Walder F.
ARTEMIS: Agro-ecological strategies for promoting climate change Mitigation and Adaptation by enhancing soil ecosystem services and sustainable crop production.
In: EJP SOIL Annual Science Days. 12 June, Hrsg. Agroscope, Riga. 2023.

Muntwyler A., Panagos P., Morari F., Berti A., Jarosch K., Mayer J., Lugato E.
Modelling phosphorus dynamics in four European long-term experiments.
Agricultural Systems, 206, 2023, 1-13.

Jarosch K., Herzog F., Mayer J.
Climate resilience concept farming.
Agromix. 2022, 4 S.

Hu Y., Jarosch K., Kavka M., Eichler-Löbermann B.
Fate of P from organic and inorganic fertilizers assessed by complementary approaches.
Nutrient Cycling in Agroecosystems, 124, 2022, 189-209.

Schmitt M., Jarosch K., Hertel R., Spielvogel S., Dippold M., Löppmann S.
Manufacturing triple-isotopically labeled microbial necromass to track C, N and P cycles in terrestrial ecosystems.
Applied Soil Ecology, 171, 2022, 1-13.

Mayer J., Mäder P., Knapp S., Jarosch K., Hammelehle A., Oberson A.
The multifunctional challenge of future agriculture - Answers from 40 years DOK research.
In: Organic World Congress OWC. 08.09., Rennes, IFOAM, ISOFAR. 2021.

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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