Natural spruce extract is an effective remedy to fight against varroatosis in organic beekeeping


L. D. Romanchuk, O. V. Lisohurska, S. V. Furman, D. V. Lisohurska, M. M. Kryvyi, O. V. Skydan

Varoatosis is the most dangerous disease of bees. A number of synthetic preparations are used for its treatment. In organic beekeeping they are forbidden; and the search for new effective acaricides, which are not toxic to bees and do not contaminate bee products, is highly relevant. Therefore, our purpose was to investigate the effectiveness of using natural spruce extract to fight against varroatosis at an organic apiary. In this study, we compared the effectiveness of using natural spruce extract and formic acid extract to combat varroatosis in 24 bee families (12 each the group). The preparations were administered according to the guidelines once in the spring and once in the autumn. In the course of the study, a number of indicators were evaluated such as spring and autumn mite infestation, the strengthening and weakening of families, honey and wax productivity, the percentage of families that died (lost their queen bee) during the winter. The results of our investigation show that natural spruce extract effectively controls the varroa mite. This is confirmed by the significant difference in mite infestation between the groups treated with formic acid and spruce extract. This indicator was lower in bee families treated with spruce extract. After the spring treatment, the difference was 3 times (??<0.05), before autumn and spring next year it was 1.2 (??<0.01). When spruce extract was applied, the bee families had by 1.2 times higher honey productivity and by 1.4 higher wax productivity. Therefore, it is advisable to use this anti-varroatosis preparation in organic beekeeping. We recommend administering preparations in the spring after the first flying rout and at the end of August, adding 15 ml per 1 liter of sugar syrup (90 ml/family).

In the future we plan to investigate the effectiveness of the use of eleutherococcus tincture in organic beekeeping.

Keywords: organic beekeeping; varroatosis; natural spruce extract


Ariana, A., Ebadi, R., Tahmasebi, G. (2002). Gholamhosein Tahmasebi Laboratory evaluation of some plant essences to control Varroa destructor (Acari: Varroidae). Exp Appl Acarol, 27, 319.

Bogdanov, S., Charriere, J.-D., Imdorf, A., Kilchenmann, V., Fluri, P. (2002). Determination of residues in honey after treatments with formic and oxalic acid under field conditions. Apidologie, 44 (4), 399–409.

Bolli, H. K., Bogdanov, S., Imdorf, A., Fluri, P. (1993). Zur Wirkungsweise von Ameisensäure bei Varroa jacobsoni Oud und der Honigbiene (Apis mellifera L.). Apidologie, 24 (1), 51–57.

Brovarskyi, V. D., Brindza, Y., Otchenashko, V, V, Povoznikov, M., G., adamchuk, L., O. (2017). Metod y`ka doslidnoyi spravy` u bdzhil`ny`cztvi  [Methodology of a test case in beekeeping] : navch. posib. Ky`yiv : Vy`d. dim «Vinnichenko», 166 s. (in Ukrainian).

Calderone, N. W. & Spivak, M. (1995). Plant Extracts for Control of the Parasitic Mite Varroa jacobsoni (Acari: Varroidae) in Colonies of the Western Honey Bee (Hymenoptera: Apidae). Journal of Economic Entomology, 88, 1211–1215.

Calderone, N. W. (2010). Evaluation of Mite-Away-II (TM) for fall control of Varroa destructor (Acari: Varroidae) in colonies of the honey bee Apis mellifera (Hymenoptera: Apidae) in the northeastern USA. Exp Appl Acarol, 50, 123–132.

Charriere, J. D., Imdorf, A. (2002). Oxalic acid treatment by trickling against Varroa destructor: recommendations for use in central Europe and under temperate climate conditions. Bee World, 83, 51–60.

Commission Regulation (EC) No 889/2008 of 5 September 2008 laying down detailed rules for the implementation of Council Regulation (EC) No 834/2007 on organic production and labelling of organic products with regard to organic production, labelling and control. OJ L 250, 18.9.2008, p. 1–84 (BG, ES, CS, DA, DE, ET, EL, EN, FR, IT, LV, LT, HU, MT, NL, PL, PT, RO, SK, SL, FI, SV) Special edition in Croatian: Chapter 15 Volume 008 P. 173–256.

Council Regulation (EC) No 834/2007 of 28 June 2007 on organic production and labelling of organic products and repealing Regulation (EEC) No 2092/91. OJ L 189, 20.7.2007, p. 1–23 (BG, ES, CS, DA, DE, ET, EL, EN, FR, IT, LV, LT, HU, MT, NL, PL, PT, RO, SK, SL, FI, SV) Special edition in Croatian: Chapter 15 Volume 008 P. 139–161.

Giovenazzo, P. & Dubreuil, P. (2011). Evaluation of spring organic treatments against Varroa destructor (Acari: Varroidae) in honey bee Apis mellifera (Hymenoptera: Apidae) colonies in eastern Canada. Exp Appl Acarol, 55 (1), 65–76.

Gregorc, A., Planinc, I. (2001). Acaricidal effect of oxalic acid in honeybee (Apis mellifera) colonies. Apidologie, 32 (4), 333–340.

Imdorf, A., Bogdanov, S., Ibanez-Ochoa, R., Calderone, N. W. (1999). Use of essential oils for the control of Varroa jacobsoni Oud. in honey bee colonies. Apidologie, 30 (2–3), 209–228.

Le Conte, Y, Ellis, M, Ritter, W (2010). Varroa mites and honey bee health: can Varroa explain part of the colony losses? Apidologie, 41 (3), 353–363.

Moosbeckhofer, R., Pechhacker, H., Unterweger, H., Franz Bandion, F. &  Heinrich-Lenz, A. (2003). Investigations on the oxalic acid content of honey from oxalic acid treated and untreated bee colonies. Eur Food Res Technol, 217, 49–52.

Organik standart. Kliyenty`[Organic standard. Customers] : Available from

Orijchuk, Z. Rosly`nni preparaty` vid klishha [Herbal remedies for ticks]. Ukr. pasichny`k, 2013, 05. 41–42. (in Ukrainian).

Petrovskiy, K. Rastitelnyie sredstva protiv klescha varroa [Herbal remedies for varroa mite]. Pas??chnik, 2015, 11 (140). 15–17. (in Ukrainian).

Polishhuk, V. P. (2001). Bdzhil`ny`cztvo [Apiculture]. L`viv : redakciya zhurnalu «Ukr. pasichny`k», 294 s. (in Ukrainian).

Romo-Chacon, A., Martínez-Contreras, L. J., Molina-Corral, F. J. et al. (2016). Evaluation of Oregano (Lippia berlandieri) Essential Oil and Entomopathogenic Fungi for Varroa destructor Control in Colonies of Honey Bee, Apis mellifera. Southwestern Entomologist, 41 (4), 971–982.

Rosenkranz, P., Aumeier, P., Ziegelmann, B. (2010). Biology and control of Varroa destructor. J Invertebr Pathol, 103, 96–119.

Rosenkranz, P., Aumeier, P., Ziegelmann, B. (2010). Biology and control of Varroa destructor. J Invertebr Pathol, 103, 96–119.

Rut, A. I., Rut, E. R., Rut, H. H., Deyell, M., J., Rut, J. A. (1993). Entsiklopediya pchelovodstva [Encyclopedia of beekeeping]. Moskva : Hudojestvennaya literatra TM «Brat», 1993. S. 12. (in Russian Federation).

Sabahi, Q., Gashout, H., Kelly, P. G., Guzman-Novoa, E. (2017). Continuous release of oregano oil effectively and safely controls Varroa destructor infestations in honey bee colonies in a northern climate. Exp Appl Acarol, 72, 263–275.

Underwood, R. M. & Currie, R. W. (2003). The effects of temperature and dose of formic acid on treatment efficacy against Varroa destructor (Acari: Varroidae), a parasite of Apis mellifera (Hymenoptera: Apidae). Exp Appl Acarol, 29, 303.

Underwood, R. M. & Currie, R. W. (2007). Effects of release pattern and room ventilation on survival of varroa mites and queens during indoor winter fumigation of honey bee colonies with formic acid. Can Entomol, 139, 881–893.

Westcott, L. C & Winston, M. L. (1999). Chemical acaricides in Apis mellifera (Hymenoptera: Apidae) colonies; do they cause nonlethal effects? Can Entomol, 131, 363–371.

Willer, H. & Lernoud, J. (Eds.). (2019). The World of Organic Agriculture. Statistics and Emerging Trends 2019. Research Institute of Organic Agriculture (FiBL), Frick, and IFOAM – Organics International, Bonn.

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