Distribution of coumaphos in beeswax after treatment of honeybee colonies with CheckMite® against the parasitical mite Varroa destructor

Kast, Christina; Kilchenmann, Verena; Droz, Benoît

doi:10.1007/s13592-019-00724-6

Cited by 18 publications

(20 citation statements)

References 37 publications

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“…The coumaphos concentration in Apulia organic honey ranged between 0.322 and 2.132 ng/g, which is a result consistent with those reported for Calabria and Trentino organic honey [ 13 ]. Although this result could be considered surprising, since the use of allopathic chemically-synthetized medicinal products for preventive bee treatments is prohibited for organic system production, many studies have reported that coumaphos is persistent in wax and can migrate to other bee products, such as honey, in different proportions [ 17 , 18 ]. Moreover, coumaphos is a compound that can also resist the melting temperature of wax, so it is able to accumulate for years, as it is a common beekeeping practice to recycle wax almost continuously in the form of the foundations on which bees construct a complete comb [ 21 ].…”

Section: Resultsmentioning

confidence: 99%

“…Organophosphates can induce acute poisoning via food consumption due to their acetylcholinesterase inhibition activity, representing a life-threatening concern [ 15 , 16 ]. This class of pesticides, widely used in agriculture to protect against crop-eating insects and to control Varroa destructor , represents a consistent contamination source [ 17 , 18 ]. Due to the common beekeeping practice of recycling old wax combs, OP residues accumulate over time, increasing the potential contamination of the following cycle [ 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

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Pesticides and Environmental Contaminants in Organic Honeys According to Their Different Productive Areas toward Food Safety Protection

Panseri

Bonerba

Nobile

et al. 2020

Foods

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Monitoring contaminant residues in honey helps to avoid risks to human health, as it is a natural product widely consumed in all population groups, including the most vulnerable, such as children and the elderly. This is important for organic honey production that may be negatively influenced by geographical area pollution. Considering the importance of collecting data on the occurrence of various xenobiotics in different geographical areas, this study aimed to investigate the presence of contaminant residues (persistent organic pollutants (POPs) and pesticides, including glyphosate and metabolites) in organic honey samples from different production areas using different analytical methods, in order to confirm their incidence and possible impact on the food safety traits of organic production. Regarding POPs, traces of benzofluoroanthene and chrysene were detected in honey from intensive orchards and arable lands. Traces of all polychlorobiphenyl (PCB) congeners were detected at different percentages in almost all of the samples, regardless of the origin area. Traces of polybromodiphenylethers (PBDE 28, 33, and 47) were found in different percentages of samples from all of the geographical areas examined. Traces of organochlorines (OCs) and organophosphates (OPs) were identified in honey samples belonging to all of the geographical areas. No glyphosate, glufosinate, and aminomethylphosphonic acid (AMPA) residues were detected.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Pesticides and Environmental Contaminants in Organic Honeys According to Their Different Productive Areas toward Food Safety Protection

Panseri

Bonerba

Nobile

et al. 2020

Foods

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“…As the survey was conducted on a voluntary basis, it is possible that it does not entirely reflect the average of the treatments used in Switzerland. However, we have previously shown that a single application for CheckMite+® (2.72 g of coumaphos in two strips) can lead to levels ranging from 36 to 159 mg·kg −1 in the wax of the brood frames next to the strips 7 months after the end of the treatment 34,35 . Hence, residue levels in the common beeswax may substantially increase if only a few beekeepers use products with a high dosage.…”

Section: Discussionmentioning

confidence: 99%

Long‐term monitoring of lipophilic acaricide residues in commercial Swiss beeswax

Kast

Kilchenmann

Charrière

2021

Pest Management Science

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BACKGROUND A national survey on pesticides in recycled beeswax originating from beekeeping has been conducted in Switzerland for almost three decades. It allowed obtaining a good overview of the lipophilic products used for beekeeping within the last 30 years. RESULTS The use of the veterinary drugs containing bromopropylate or tau‐fluvalinate two decades ago led to substantial residues in commercial beeswax. These contaminants are still detectable although in Switzerland the corresponding products have been out of use for many years. The level of coumaphos substantially increased in 2015 up to an annual value of 3.25 mg·kg−1, suggesting that at least a few beekeepers used coumaphos‐containing products. Consequently, an information campaign was launched, and the annual value decreased again. Maximal levels of thymol up to an annual value of 87.5 mg·kg−1 were measured in 2009. Since that time, a steady decrease of thymol residues suggests that beekeepers less frequently use thymol‐containing products. Twenty‐five years ago, 1,4‐dichlorobenzene (PDCB) was widely used for the control of the wax moth, resulting in residues in beeswax up to an annual value of 10.9 mg·kg−1 whereas nowadays, PDCB residues are rarely detected in Swiss beeswax. CONCLUSIONS Our survey illustrates that several beekeeping‐associated pesticides persist in recycled beeswax for many years. Most recent analyses show lower residue levels in Swiss beeswax as compared to previous years. Nowadays Swiss beekeepers mostly use hydrophilic substances for treatment against the Varroa destructor that do not accumulate in beeswax, thus reducing exposure of the honey bees to lipophilic contaminants.

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“…Synthetic acaricides could then provide good results for preventing colony losses [75]. Growing data have been published on acaricide residues in honey bee colony matrices, particularly in wax, which have the chemical properties to store the used lipophilic acaricides at concentrations that could even be toxic to the bees [78,87,88].…”

Section: Chemical Controlmentioning

confidence: 99%

Varroa destructor: how does it harm Apis mellifera honey bees and what can be done about it?

Noël

Conte

Mondet

2020

Emerging Topics in Life Sciences

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Since its migration from the Asian honey bee (Apis cerana) to the European honey bee (Apis mellifera), the ectoparasitic mite Varroa destructor has emerged as a major issue for beekeeping worldwide. Due to a short history of coevolution, the host–parasite relationship between A. mellifera and V. destructor is unbalanced, with honey bees suffering infestation effects at the individual, colony and population levels. Several control solutions have been developed to tackle the colony and production losses due to Varroa, but the burden caused by the mite in combination with other biotic and abiotic factors continues to increase, weakening the beekeeping industry. In this synthetic review, we highlight the main advances made between 2015 and 2020 on V. destructor biology and its impact on the health of the honey bee, A. mellifera. We also describe the main control solutions that are currently available to fight the mite and place a special focus on new methodological developments, which point to integrated pest management strategies for the control of Varroa in honey bee colonies.

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Distribution of coumaphos in beeswax after treatment of honeybee colonies with CheckMite® against the parasitical mite Varroa destructor

Cited by 18 publications

References 37 publications

Pesticides and Environmental Contaminants in Organic Honeys According to Their Different Productive Areas toward Food Safety Protection

Pesticides and Environmental Contaminants in Organic Honeys According to Their Different Productive Areas toward Food Safety Protection

Long‐term monitoring of lipophilic acaricide residues in commercial Swiss beeswax

Varroa destructor: how does it harm Apis mellifera honey bees and what can be done about it?

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