Honey bee (Apis mellifera L.) colony losses in Ukraine after the winter of 2016-2017 within the international monitoring

Федоряк, Марія; Tymochko, L; Kulmanov, O; Rudenko, Svitlana; Дели, О. Ф.; Podobivskiy, S. S.; Melnychenko, G; Brodschneider, Robert; Волков, Р. А.

doi:10.31861/biosystems2018.01.037

Biosystems

2018

DOI: 10.31861/biosystems2018.01.037

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Honey bee (Apis mellifera L.) colony losses in Ukraine after the winter of 2016-2017 within the international monitoring

Марія Федоряк¹,

L Tymochko²,

O Kulmanov³

et al.

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Cited by 6 publications

References 11 publications

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Veterinary Medicinal Products to Treat Varroosis on the Ukrainian Market in the Context of Risk Factors Analysis for Honey Bees

2020

Visnyk of v. N. Karazin Kharkiv National University Series "Ecology"

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Purpose. To collect information on available on the Ukrainian market veterinary medicinal products to treat honey bee varroosis caused by Varroa destructor Anderson and Trueman, 2000; to systematize the information and compile the list of the veterinary medicinal products taking into account the content of active substances, dosage form and producer. Methods. Analysis of the information obtained in 2015–2020 by surveying beekeepers, direct communication with them, browsing Internet resources, visiting veterinary pharmacies; creation of an information database of anti-Varroa medicinal products. Results. As for September 2020, at least 136 items of veterinary medicinal products to treat varroosis are available on the market in Ukraine, of which 79 are imported. They contain ten active substances (amitraz – in 37 products, fluvalinate – 30, flumethrin – 12, bromopropylate – 5, coumaphos – 2, acrinatrin – 1, thymol – 14, formic acid – 6, lactic acid – 6, oxalic acid – 9), vegetable essential oils and other substances. However, as for February 2020, only 17 anti-Varroa products have been included into the State Register of Veterinary Medicinal Products Permitted for Use in Ukraine. Analogs with the same concentration of the same active substance from different producers have been identified; drugs with the same name but different origins, differing both in the concentration of the active substance and in the dosage form; numerous technical errors in the indication of initial concentrations on the sites of online stores, as well as other risks associated with the dishonesty of sellers. Conclusions. The obtained results stress the need to strengthen control over the market of veterinary medicaments to treat honey bee varroosis in Ukraine.

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Veterinary Medicinal Products to Treat Varroosis on the Ukrainian Market in the Context of Risk Factors Analysis for Honey Bees

2020

Visnyk of v. N. Karazin Kharkiv National University Series "Ecology"

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Results of Annual Monitoring of Honey Bee Colony Winter Losses in Ukraine: Winter 2019–2020

Федоряк

Tymochko

Shkrobanets

et al. 2021

Visnyk of v. N. Karazin Kharkiv National University Series "Ecology"

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Purpose. To estimate honey bee (Apis mellifera Linnaeus, 1758) colony winter loss rate for Ukraine after the winter 2019–2020 in the context of international COLOSS survey. Methods. Analysis of the results of the survey of Ukrainian beekeepers on A. mellifera colonies survival after the winter 2019-2020 by using the questionnaire developed by the coordinators of COLOSS international monitoring group. Unified approaches to data collection and statistical processing have been used. Valid protocols from 702 respondents from five physical-geographical zones of Ukraine have been analysed. Results. Honey bee colony winter loss rates for Ukraine after the winter 2019-2020 was 9.29%, the mortality rate was 5.41 %; the losses due to unsolvable queen problems – 2.19 %, and due to natural disasters – 1.69 %. The total losses in the steppe zone of Ukraine were 16.08%, significantly exceeding this indicator in the forest-steppe zone (8.94%), the zone of deciduous forests (6.73%) and the Ukrainian Carpathians (8.14%). The most common sign of dead colonies in Ukraine was the presence of a large number of dead bees in or in front of the hive (31.3 %) and unknown symptoms (37,3 %). The majority of Ukrainian beekeepers (50.7%) did not notice any difference in wintering of the colonies going into winter with a new queen in comparison with the old one. Among antivarroa drugs, the majority of respondents preferred products based on amitraz (fumigation – 50.8%, in plates – 15.7%) and flumethrin (20.0%). We confirmed statistically lower level of winter losses in colonies treated with amitraz (fumigation), whereas colonies treated with formic acid (long-term) had higher losses. Conclusions. Honey bee (Apis mellifera Linnaeus, 1758) colony winter loss rate for Ukraine after the winter 2019–2020 was 9.29% and decreased slightly compared to the last year (11.18%) and the year before last (11.26%). It was almost twice lower than the average for the countries participating in COLOSS international monitoring (18,1%) (Gray, 2021). The highest losses were observed in the steppe zone of Ukraine, whereas the lowest in the Ukrainian Carpathians. The smaller beekeeping operations with at most 50 colonies suffered significantly higher losses 12.66%) compared to medium and large ones (9.48% and 6.52%, respectively). The number of beekeepers treating colonies against varroosis was 90.6%, and all of them mentioned that they had pre-monitored the level of Varroa infestation.

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Results of annual honey bee colony losses survey in Ukraine: winter 2017-2018

et al. 2019

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Decline of honey bee colonies remains a global problem. It may affect catastrophically both ecosystems and the global economy. Here we present the results of the fourth year of a research project on bee colony losses in Ukraine over winter 2017-2018, conducted in the framework of international monitoring coordinated by the non-profit honey bee research association COLOSS. Overall winter loss rate and the mortality rate over winter 2017-2018 were significantly lower compared to the previous year: overall winter loss rate – 11.3% (95 % СІ 10.0-12.6); mortality rate – 6.7% (95 % СІ 5.8-7.7); rate of colony loss due to unsolvable queen problems – 2.1% (95 % СІ 1.6-2.7) and due to natural disasters – 2.4% (95 % СІ 2.0-3.0). Likewise previous years, the highest losses were observed in small operations (with 50 or fewer colonies). The highest overall loss rate was observed in the Steppe zone, with the highest both mortality rate and losses due to natural disasters compared to the other physiographic zones of Ukraine. Minimum mortality was recorded from deciduous forests 5.6 % (95 % CI 4.4-7.2) and the Ukrainian Carpathians 5.5 % (95 % CI 4.2-7.2). Winter losses related to queen problems varied greatly with a minimum in the Forest-Steppe zone 0.71 % (95 % CI 0.3-1.5). 83.3% of beekeepers treated their colonies against Varroa. The r-rank correlation analysis identified two potential risk factors (no or only a few dead bees in or in front of the empty hive; dead workers in cells and no food present) which revealed a weak positive correlation with both mortality rate and the rate of losses due to unsolvable queen problems.

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Honey bee (Apis mellifera L.) colony losses in Ukraine after the winter of 2016-2017 within the international monitoring

Cited by 6 publications

References 11 publications

Veterinary Medicinal Products to Treat Varroosis on the Ukrainian Market in the Context of Risk Factors Analysis for Honey Bees

Veterinary Medicinal Products to Treat Varroosis on the Ukrainian Market in the Context of Risk Factors Analysis for Honey Bees

Results of Annual Monitoring of Honey Bee Colony Winter Losses in Ukraine: Winter 2019–2020

Results of annual honey bee colony losses survey in Ukraine: winter 2017-2018

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