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Cecchetto F, Villalba A, Vazquez ND, Ramirez CL, Maggi MD, Miglioranza KSB. Occurrence of chlorpyrifos and organochlorine pesticides in a native bumblebee (Bombus pauloensis) living under different land uses in the southeastern Pampas, Argentina. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167117. [PMID: 37717766 DOI: 10.1016/j.scitotenv.2023.167117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/19/2023]
Abstract
Pollinators such as Apidae bees are vital for ecosystems and food security. Unfortunately, their populations have declined due to several factors including pesticide use. Among them, the organophosphate insecticide chlorpyrifos, poses a global threat, while legacy compounds like organochlorine pesticides (OCPs) easily bioaccumulate, increasing the concern. Bombus pauloensis, a widely distributed native bee in Argentina, is used for commercial pollination; however, information regarding their health status is scarce. This study assessed chlorpyrifos and OCP levels in B. pauloensis (workers and males) and related environmental matrices living from three different land uses schemes, by means of GC-ECD and GC-MS. The ornamental horticulture field (OP) showed the highest total pesticide concentrations in workers (13.1 ng/g), flowers and soils, whereas the organic agriculture field (OA) exhibited the lowest. Chlorpyrifos was the most abundant compound, accounting for at least 20 % of pesticide load across all matrices. The food production horticulture field (FH) had the highest chlorpyrifos concentration in workers, males and soils (5.0, 4.4 and 3.3 ng/g, respectively), suggesting a local greater usage, whereas OA showed the lowest. Regarding OCPs groups, Drins and DDTs were predominant in most matrices, with FH males registering the highest levels (4.0 and 2.5 ng/g, respectively), closely followed by OP. However, metabolites' contribution indicated historical use and atmospheric inputs in all sites. Multivariate analyses confirmed the significance of site and bumblebee sex to explain pesticide composition. Males from all sites exhibited higher chlorpyrifos levels than workers and this trend was similar for some OCP groups. Overall, OA differed from FH and OP, indicating a correlation between production modes and pesticide profiles. This study demonstrates the value of B. pauloensis as a pesticide biomonitor but also offers insights into its populations' health in the area. In this sense, this information could be useful towards the preservation of this crucial pollinator.
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Affiliation(s)
- Franco Cecchetto
- Laboratorio de Ecotoxicología y Contaminación Ambiental, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Funes 3350, Mar del Plata, Argentina; Instituto de Investigaciones Marinas y Costeras (IIMyC), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Funes 3350, Mar del Plata, Argentina.
| | - Agustina Villalba
- Laboratorio de Ecotoxicología y Contaminación Ambiental, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Funes 3350, Mar del Plata, Argentina; Instituto de Investigaciones Marinas y Costeras (IIMyC), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Funes 3350, Mar del Plata, Argentina; Centro de Investigación en Abejas Sociales (CIAS), Laboratorio de Artrópodos - Grupo Acarología y Entomología, FCEyN, UNMdP, Funes 3350, Mar del Plata, Argentina; Instituto de Investigación en Sanidad, Producción y Ambiente (IIPROSAM), Funes 3350, Mar del Plata, Argentina
| | - Nicolas D Vazquez
- Laboratorio de Ecotoxicología y Contaminación Ambiental, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Funes 3350, Mar del Plata, Argentina; Instituto de Investigaciones Marinas y Costeras (IIMyC), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Funes 3350, Mar del Plata, Argentina; Laboratorio de Biología de Cnidarios, FCEyN, UNMdP, Funes 3350, Mar del Plata, Argentina
| | - Cristina L Ramirez
- Departamento de Química, FCEyN, UNMdP, Funes 3350, Mar del Plata, Argentina; Química Analítica y Modelado Molecular (QUIAMM), Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC), CONICET, Funes 3350, Mar del Plata, Argentina
| | - Matias D Maggi
- Centro de Investigación en Abejas Sociales (CIAS), Laboratorio de Artrópodos - Grupo Acarología y Entomología, FCEyN, UNMdP, Funes 3350, Mar del Plata, Argentina; Instituto de Investigación en Sanidad, Producción y Ambiente (IIPROSAM), Funes 3350, Mar del Plata, Argentina
| | - Karina S B Miglioranza
- Laboratorio de Ecotoxicología y Contaminación Ambiental, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Funes 3350, Mar del Plata, Argentina; Instituto de Investigaciones Marinas y Costeras (IIMyC), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Funes 3350, Mar del Plata, Argentina
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Balbuena S, Castelli L, Zunino P, Antúnez K. Effect of Chronic Exposure to Sublethal Doses of Imidacloprid and Nosema ceranae on Immunity, Gut Microbiota, and Survival of Africanized Honey Bees. MICROBIAL ECOLOGY 2023; 85:1485-1497. [PMID: 35460373 DOI: 10.1007/s00248-022-02014-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 04/13/2022] [Indexed: 05/10/2023]
Abstract
Large-scale honey bee colony losses reported around the world have been associated with intoxication with pesticides, as with the presence of pests and pathogens. Among pesticides, neonicotinoid insecticides are the biggest threat. Due to their extensive use, they can be found in all agricultural environments, including soil, water, and air, are persistent in the environment, and are highly toxic for honey bees. In addition, infection by different pests and pathogens can act synergistically, weakening bees. In this study, we investigated the effects of chronic exposure to sublethal doses of imidacloprid alone or combined with the microsporidia Nosema ceranae on the immune response, deformed wing virus infection (DWV), gut microbiota, and survival of Africanized honey bees. We found that imidacloprid affected the expression of some genes associated with immunity generating an altered physiological state, although it did not favor DWV or N. ceranae infection. The pesticide alone did not affect honey bee gut microbiota, as previously suggested, but when administered to N. ceranae infected bees, it generated significant changes. Finally, both stress factors caused high mortality rates. Those results illustrate the negative impact of imidacloprid alone or combined with N. ceranae on Africanized honey bees and are useful to understand colony losses in Latin America.
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Affiliation(s)
- Sofía Balbuena
- Laboratorio de Microbiología Y Salud de Las Abejas, Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Avda. Italia, 3318, Montevideo, Uruguay
| | - Loreley Castelli
- Laboratorio de Microbiología Y Salud de Las Abejas, Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Avda. Italia, 3318, Montevideo, Uruguay
| | - Pablo Zunino
- Laboratorio de Microbiología Y Salud de Las Abejas, Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Avda. Italia, 3318, Montevideo, Uruguay
| | - Karina Antúnez
- Laboratorio de Microbiología Y Salud de Las Abejas, Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Avda. Italia, 3318, Montevideo, Uruguay.
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Capela N, Xu M, Simões S, Azevedo-Pereira HMSV, Peters J, Sousa JP. Exposure and risk assessment of acetamiprid in honey bee colonies under a real exposure scenario in Eucalyptus sp. landscapes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 840:156485. [PMID: 35688249 PMCID: PMC9247745 DOI: 10.1016/j.scitotenv.2022.156485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/27/2022] [Accepted: 06/01/2022] [Indexed: 06/15/2023]
Abstract
Honey bee colonies have shown abnormal mortality rates over the last decades. Colonies are exposed to biotic and abiotic stressors including landscape changes caused by human pressure. Modern agriculture and even forestry, rely on pesticide inputs and these chemicals have been indicated as one of the major causes for colony losses. Neonicotinoids are a common class of pesticides used worldwide that are specific to kill insect pests, with acetamiprid being the only neonicotinoid allowed to be applied outdoors in the EU. To evaluate honeybees' exposure to acetamiprid under field conditions as well as to test the use of in-situ tools to monitor pesticide residues, two honeybee colonies were installed in five Eucalyptus sp. plantations having different area where Epik® (active substance: acetamiprid) was applied as in a common spraying event to control the eucalyptus weevil pest. Flowers, fresh nectar, honey bees and colony products samples were collected and analyzed for the presence of acetamiprid residues. Our main findings were that (1) acetamiprid residues were found in samples collected outside the spraying area, (2) the amount of residues transported into the colonies increased with the size of the sprayed area, (3) according to the calculated Exposure to Toxicity Ratio (ETR) values, spraying up to 22 % of honeybees foraging area does not harm the colonies, (4) colony products can be used as a valid tool to monitor colony accumulation of acetamiprid and (5) the use of Lateral Flow Devices (LFDs) can be a cheap, fast and easy tool to apply in the field, to evaluate the presence of acetamiprid residues in the landscape and colony products.
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Affiliation(s)
- Nuno Capela
- Centre for Functional Ecology, Department of Life Sciences, Associated Laboratory TERRA, University of Coimbra, Portugal.
| | - Mang Xu
- Wageningen Food safety Research, Wageningen, the Netherlands
| | - Sandra Simões
- Centre for Functional Ecology, Department of Life Sciences, Associated Laboratory TERRA, University of Coimbra, Portugal
| | - Henrique M S V Azevedo-Pereira
- Centre for Functional Ecology, Department of Life Sciences, Associated Laboratory TERRA, University of Coimbra, Portugal; ForestWISE - Collaborative Laboratory for Integrated Forest & Fire Management, Quinta de Prados, 5001-801 Vila Real, Portugal
| | - Jeroen Peters
- Wageningen Food safety Research, Wageningen, the Netherlands
| | - José Paulo Sousa
- Centre for Functional Ecology, Department of Life Sciences, Associated Laboratory TERRA, University of Coimbra, Portugal
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Xiao J, He Q, Liu Q, Wang Z, Yin F, Chai Y, Yang Q, Jiang X, Liao M, Yu L, Jiang W, Cao H. Analysis of honey bee exposure to multiple pesticide residues in the hive environment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 805:150292. [PMID: 34536857 DOI: 10.1016/j.scitotenv.2021.150292] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/07/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Since the loss of honeybees in hives could have a greater impact on colony health than those of their foraging bees, it is imperative to know beehives' pesticide exposure via oral ingestion of contaminated in-hive matrices. Here, a 4-year monitoring survey of 64 pesticide residues in pollen, nectar and related beehive matrices (beebread and honey) from China's main honey producing areas was carried out using a modified version of the QuEChERS multi-residue method. The results showed that 93.6% of pollen, 81.5% of nectar, 96.6% of beebread, and 49.3% of honey containing at least one target pesticide were detected either at or above the method detection limits (MDLs), respectively, with up to 19 pesticides found per sample. Carbendazim was the most frequently detected pesticide (present in >85% of the samples), and pyrethroids were also abundant (median concentration = 134.3-279.0 μg/kg). The transfer of pesticides from the environment into the beehive was shown, but the pesticide transference ratio may be affected by complex factors. Although the overall risk to colony health from pesticides appears to be at an acceptable level, the hazard quotient/hazard index (HQ/HI) value revealed that pyrethroids were clearly the most influential contributor, accounting for up to 45% of HI. Collectively, these empirical findings provide further insights into the extent of contamination caused by agricultural pesticide use on honeybee colonies.
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Affiliation(s)
- Jinjing Xiao
- School of Plant Protection, Anhui Agricultural University, Hefei, Anhui Province 230036, China; Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, Anhui Province 230036, China
| | - Qibao He
- School of Plant Protection, Anhui Agricultural University, Hefei, Anhui Province 230036, China; Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, Anhui Province 230036, China
| | - Qiongqiong Liu
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, Anhui Province 230036, China
| | - Zhiyuan Wang
- School of Plant Protection, Anhui Agricultural University, Hefei, Anhui Province 230036, China
| | - Fang Yin
- School of Plant Protection, Anhui Agricultural University, Hefei, Anhui Province 230036, China; Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, Anhui Province 230036, China
| | - Yuhao Chai
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, Anhui Province 230036, China
| | - Qing Yang
- School of Plant Protection, Anhui Agricultural University, Hefei, Anhui Province 230036, China; Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, Anhui Province 230036, China
| | - Xingchuan Jiang
- School of Plant Protection, Anhui Agricultural University, Hefei, Anhui Province 230036, China; Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, Anhui Province 230036, China
| | - Min Liao
- School of Plant Protection, Anhui Agricultural University, Hefei, Anhui Province 230036, China; Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, Anhui Province 230036, China
| | - Linsheng Yu
- School of Plant Protection, Anhui Agricultural University, Hefei, Anhui Province 230036, China; Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, Anhui Province 230036, China
| | - Wayne Jiang
- Department of Entomology, Michigan State University, 48824 East Lansing, MI, USA
| | - Haiqun Cao
- School of Plant Protection, Anhui Agricultural University, Hefei, Anhui Province 230036, China; Anhui Province Key Laboratory of Integrated Pest Management on Crops, Hefei, Anhui Province 230036, China.
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Presence and distribution of pesticides in apicultural products: A critical appraisal. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2021.116506] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Piechowicz B, Kobielska M, Koziorowska A, Podbielska M, Szpyrka E, Pieniążek M, Potocki L. Dynamics of λ-cyhalothrin disappearance and expression of selected P450 genes in bees depending on the ambient temperature. OPEN CHEM 2021. [DOI: 10.1515/chem-2021-0104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Temperature has a significant influence on the action of pyrethroids, and their effect increases with decreasing ambient temperature. Using gas chromatography, we assessed the degradation rate of λ-cyhalothrin, active ingredients (AI) of Karate Zeon 050 CS from pyrethroid group, in bees incubated for 48 h under different temperature conditions. With RT-qPCR method, we studied expression levels of selected cytochrome P450 genes after exposure to the plant protection product (PPP). The half-life of λ-cyhalothrin decreased from 43.32 to 17.33 h in the temperature range of 21–31°C. In animals incubated at 16°C, the AI half-life was even shorter and amounted to 10.19 h. The increase in temperature increased the expression of Cyp9Q1, Cyp9Q2, and Cyp9Q3 in the group of control bees. We showed a two-fold statistically significant increase in gene expression after treatment with PPP bees. The obtained results indicate that honey bees are characterized by susceptibility to pyrethroids that vary depending on the ambient temperature. This may be due to the different expressions of genes responsible for the detoxification of these PPPs at different temperatures.
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Affiliation(s)
- Bartosz Piechowicz
- Department of Biotechnology, University of Rzeszów, College of Natural Sciences, Institute of Biology and Biotechnology, Pigonia 1 , 35-359 , Rzeszów , Poland
- Interdisciplinary Center for Preclinical and Clinical Research, University of Rzeszow , Werynia 2 , 36-100 Kolbuszowa , Poland
| | - Marika Kobielska
- Department of Biotechnology, University of Rzeszów, College of Natural Sciences, Institute of Biology and Biotechnology, Pigonia 1 , 35-359 , Rzeszów , Poland
| | - Anna Koziorowska
- Interdisciplinary Center for Preclinical and Clinical Research, University of Rzeszow , Werynia 2 , 36-100 Kolbuszowa , Poland
- Interdiscyplinary Center for Preclinical and Clinical Research, University of Rzeszow, Werynia 2 , 36-100 Kolbuszowa , Poland
| | - Magdalena Podbielska
- Department of Biotechnology, University of Rzeszów, College of Natural Sciences, Institute of Biology and Biotechnology, Pigonia 1 , 35-359 , Rzeszów , Poland
| | - Ewa Szpyrka
- Department of Biotechnology, University of Rzeszów, College of Natural Sciences, Institute of Biology and Biotechnology, Pigonia 1 , 35-359 , Rzeszów , Poland
| | - Marcin Pieniążek
- Department of Soil Science, Environmental Chemistry and Hydrology, University of Rzeszów, College of Natural Sciences, Institute of Agricultural Sciences, Zelwerowicza 8b , 35-601 , Rzeszów , Poland
| | - Leszek Potocki
- Department of Biotechnology, University of Rzeszów, College of Natural Sciences, Institute of Biology and Biotechnology, Pigonia 1 , 35-359 , Rzeszów , Poland
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Caliani I, Campani T, Conti B, Cosci F, Bedini S, D'Agostino A, Giovanetti L, Di Noi A, Casini S. First application of an Integrated Biological Response index to assess the ecotoxicological status of honeybees from rural and urban areas. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:47418-47428. [PMID: 33891238 PMCID: PMC8384815 DOI: 10.1007/s11356-021-14037-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 04/16/2021] [Indexed: 05/05/2023]
Abstract
Understanding the effects of environmental contaminants on honeybees is essential to minimize their impacts on these important pollinating insects. The aim of this study was to assess the ecotoxicological status of honeybees in environments undergoing different anthropic pressure: a wood (reference site), an orchard, an agricultural area, and an urban site, using a multi-biomarker approach. To synthetically represent the ecotoxicological status of the honeybees, the responses of the single biomarkers were integrated by the Integrated Biological Response (IBRv2) index. Overall, the strongest alteration of the ecotoxicological status (IBRv2 = 7.52) was detected in the bees from the orchard due to the alteration of metabolic and genotoxicity biomarkers indicating the presence of pesticides, metals, and lipophilic compounds. Honeybees from the cultivated area (IBRv2 = 7.18) revealed an alteration especially in neurotoxicity, metabolic, and genotoxicity biomarkers probably related to the presence of pesticides, especially fungicides. Finally, in the urban area (IBRv2 = 6.60), the biomarker results (GST, lysozyme, and hemocytes) indicated immunosuppression in the honeybees and the effects of the presence of lipophilic compounds and metals in the environment.
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Affiliation(s)
- Ilaria Caliani
- Department of Physical, Earth and Environmental Sciences, University of Siena, via Mattioli, 4, 53100, Siena, Italy
| | - Tommaso Campani
- Department of Physical, Earth and Environmental Sciences, University of Siena, via Mattioli, 4, 53100, Siena, Italy.
| | - Barbara Conti
- Department of Agriculture, Food and Environment Entomology, University of Pisa, via del Borghetto, 80, 56124, Pisa, Italy
| | - Francesca Cosci
- Department of Agriculture, Food and Environment Entomology, University of Pisa, via del Borghetto, 80, 56124, Pisa, Italy
| | - Stefano Bedini
- Department of Agriculture, Food and Environment Entomology, University of Pisa, via del Borghetto, 80, 56124, Pisa, Italy
| | - Antonella D'Agostino
- Department of Management and Quantitative Studies, University of Naples "Parthenope", via Generale Parisi, 13, 80132, Napoli, Italy
| | - Laura Giovanetti
- Department of Physical, Earth and Environmental Sciences, University of Siena, via Mattioli, 4, 53100, Siena, Italy
| | - Agata Di Noi
- Department of Life Sciences, University of Siena, via Mattioli, 4, 53100, Siena, Italy
| | - Silvia Casini
- Department of Physical, Earth and Environmental Sciences, University of Siena, via Mattioli, 4, 53100, Siena, Italy
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Almeida CHS, Haddi K, Toledo PFS, Rezende SM, Santana WC, Guedes RNC, Newland PL, Oliveira EE. Sublethal agrochemical exposures can alter honey bees' and Neotropical stingless bees' color preferences, respiration rates, and locomotory responses. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 779:146432. [PMID: 33744575 DOI: 10.1016/j.scitotenv.2021.146432] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 03/08/2021] [Accepted: 03/08/2021] [Indexed: 05/26/2023]
Abstract
Stingless bees such as Partamona helleri Friese play important roles in pollination of native plants and agricultural crops in the Neotropics. Global concerns about declining bee populations due to agrochemical pollutants have, however, been biased towards the honey bee, Apis mellifera Linnaeus. Here, we analysed the unintended effects of commercial formulations of a neonicotinoid insecticide, imidacloprid, and a fungicide mixture of thiophanate-methyl and chlorothalonil on color preference, respiration rates and group locomotory activities of both P. helleri and A. mellifera. Our results revealed that P. helleri foragers that were not exposed to pesticides changed their color preference during the course of a year. By contrast, we found that pesticide exposure altered the color preference of stingless bees in a concentration-dependent manner. In addition, imidacloprid decreased the overall locomotion of both bee species, whereas the fungicide mixture increased locomotion of only stingless bees. The fungicide mixture also reduced respiration rates of forager bees of both species. Forager bees of both species altered their color preference, but not their locomotory and respiration rates, when exposed to commercial formulations of each fungicidal mixture component (i.e., chlorothalonil and thiophanate-methyl). Our findings emphasize the importance of P. helleri as a model for Neotropical wild pollinator species in pesticide risk assessments, and also the critical importance of including groups of agrochemicals that are often considered to have minimal impact on pollinators, such as fungicides.
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Affiliation(s)
- Carlos H S Almeida
- Departamento de Entomologia, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
| | - Khalid Haddi
- Departamento de Entomologia, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil; Departamento de Entomologia, Universidade Federal de Lavras, Lavras, MG 37200-000, Brazil.
| | - Pedro F S Toledo
- Departamento de Entomologia, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
| | - Sarah M Rezende
- Departamento de Entomologia, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
| | - Weyder C Santana
- Departamento de Entomologia, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
| | - Raul Narciso C Guedes
- Departamento de Entomologia, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
| | - Philip L Newland
- Biological Sciences, University of Southampton, Highfield Campus, Southampton SO17 1BJ, United Kingdom
| | - Eugenio E Oliveira
- Departamento de Entomologia, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil.
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Piechowicz B, Sieńko J, Mytych J, Grodzicki P, Podbielska M, Szpyrka E, Zaręba L, Piechowicz I, Sadło S. Assessment of risk to honey bees and honey consumers resulting from the insect exposure to captan, thiacloprid, penthiopyrad, and λ-cyhalothrin used in a commercial apple orchard. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:129. [PMID: 33587214 DOI: 10.1007/s10661-021-08913-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 01/26/2021] [Indexed: 06/12/2023]
Abstract
Samples of leaves, flowers, soil, pollen, bee workers, bee brood, honey, and beeswax were collected to assess the possibility of a transfer of captan, thiacloprid, penthiopyrad, and λ-cyhalothrin from apple trees of Idared variety to honey bee (Apis mellifera) hives. Chemical analyses were performed using the Agilent 7890 Gas Chromatograph equipped with the Micro-cell Electron Capture Detector. It was found that significant amounts of penthiopyrad, the active ingredient of Fontelis 200 SC, were present in leaves, flowers, pollen, bee workers, and beeswax. Simultaneously, captan was present in the brood, worker bees, and honey samples. Significant levels of the captan residues were also detected on the soil surface. In honey samples, captan residue levels exceeded the acceptable standard, reaching 160% of its maximum residue level. However, in no case the amounts of captan, thiacloprid, penthiopyrad, and λ-cyhalothrin ingested with honey by an adult consumer exceeded the level of 0.02% of the acceptable daily intake. Despite the trace amounts of pesticide residues in honey samples collected during the field trial, bee honey consumption can be considered safe. An adult consumer can safely consume about 16 kg of honey.
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Affiliation(s)
- Bartosz Piechowicz
- Department of Biotechnology, Institute of Biology and Biotechnology, University of Rzeszów, Pigonia 1, 35-310, Rzeszów, Poland
| | - Joanna Sieńko
- Department of Biotechnology, Institute of Biology and Biotechnology, University of Rzeszów, Pigonia 1, 35-310, Rzeszów, Poland
| | - Jennifer Mytych
- Department of Biotechnology, Institute of Biology and Biotechnology, University of Rzeszów, Pigonia 1, 35-310, Rzeszów, Poland
| | - Przemysław Grodzicki
- Department of Animal Physiology and Neurobiology, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100, Toruń, Poland
| | - Magdalena Podbielska
- Department of Biotechnology, Institute of Biology and Biotechnology, University of Rzeszów, Pigonia 1, 35-310, Rzeszów, Poland.
| | - Ewa Szpyrka
- Department of Biotechnology, Institute of Biology and Biotechnology, University of Rzeszów, Pigonia 1, 35-310, Rzeszów, Poland
| | - Lech Zaręba
- Interdisciplinary Centre for Computational Modelling, College of Natural Sciences, University of Rzeszów, Pigonia 1, 35-310, Rzeszów, Poland
| | - Iwona Piechowicz
- Department of Biotechnology, Institute of Biology and Biotechnology, University of Rzeszów, Rzeszów, Poland
| | - Stanisław Sadło
- Department of Biotechnology, Institute of Biology and Biotechnology, University of Rzeszów, Pigonia 1, 35-310, Rzeszów, Poland
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Villalba A, Maggi M, Ondarza PM, Szawarski N, Miglioranza KSB. Influence of land use on chlorpyrifos and persistent organic pollutant levels in honey bees, bee bread and honey: Beehive exposure assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 713:136554. [PMID: 31955084 DOI: 10.1016/j.scitotenv.2020.136554] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 01/02/2020] [Accepted: 01/04/2020] [Indexed: 06/10/2023]
Abstract
This work reports the spatial and temporal variations on the dynamics of OCPs, PCBs, PBDEs and chlorpyrifos in honey bee, bee bread and honey samples, as well as soil and flowers from the surrounding areas, considering, different land uses. Honey bee samples showed the highest pollutant levels, with a predominance of the industrial contaminants over pesticides. Chlorpyrifos showed the highest concentration during the application period in almost all samples from the soybean field (S2), in concordance with its current use. By other hand, the recalcitrant compounds such as, DDTs, BDE #47 and also light PCBs exhibited the highest levels in beehive samples from the field adjacent to urban disposal waste (S3). In both soils and flower samples a prevalence of obsolete compounds over chlorpyrifos was observed, and the 6-CB predominated among the homologous groups of PCBs These results highlights the importance of soils as sink of these persistent contaminants, which became available depending on environmental conditions. Results revealed that the land uses and seasonal variations have directly impacted on the levels of agrochemicals, PCBs and PBDEs found in the beehive matrixes. This survey provides novel evidence about the current situation of pollution on honey bee colonies under temperate climates and contributes to the knowledge of this poor studied topic in Argentina.
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Affiliation(s)
- A Villalba
- Laboratorio de Ecotoxicología y Contaminación Ambiental, Instituto de Investigaciones Marinas y Costeras (IIMyC), FECYN, UNMDP-CONICET, Funes 3350, 7600 Mar del Plata, Argentina; Centro de Investigación en Abejas Sociales (CIAS), Laboratorio de Artrópodos - Grupo Acarología y Entomología, Instituto de Investigación en Sanidad, Producción y Ambiente (IIPROSAM), CIC-UNMdP, FECYN, UNMDP, Funes 3350, 7600 Mar del Plata, Argentina
| | - M Maggi
- Centro de Investigación en Abejas Sociales (CIAS), Laboratorio de Artrópodos - Grupo Acarología y Entomología, Instituto de Investigación en Sanidad, Producción y Ambiente (IIPROSAM), CIC-UNMdP, FECYN, UNMDP, Funes 3350, 7600 Mar del Plata, Argentina
| | - P M Ondarza
- Laboratorio de Ecotoxicología y Contaminación Ambiental, Instituto de Investigaciones Marinas y Costeras (IIMyC), FECYN, UNMDP-CONICET, Funes 3350, 7600 Mar del Plata, Argentina
| | - N Szawarski
- Centro de Investigación en Abejas Sociales (CIAS), Laboratorio de Artrópodos - Grupo Acarología y Entomología, Instituto de Investigación en Sanidad, Producción y Ambiente (IIPROSAM), CIC-UNMdP, FECYN, UNMDP, Funes 3350, 7600 Mar del Plata, Argentina
| | - K S B Miglioranza
- Laboratorio de Ecotoxicología y Contaminación Ambiental, Instituto de Investigaciones Marinas y Costeras (IIMyC), FECYN, UNMDP-CONICET, Funes 3350, 7600 Mar del Plata, Argentina.
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11
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Issa MM, M Taha S, El-Marsafy AM, Khalil MMH, Ismail EH. Acetonitrile-Ethyl acetate based method for the residue analysis of 373 pesticides in beeswax using LC-MS/MS and GC-MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1145:122106. [PMID: 32305708 DOI: 10.1016/j.jchromb.2020.122106] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 03/28/2020] [Accepted: 04/04/2020] [Indexed: 12/21/2022]
Abstract
In the current study, Pesticide residue extraction in beeswax was carried out using a mixture of acetonitrile-ethyl acetate (1:3, v/v). This mixture of solvents not only enables the melting of beeswax sample at a lower temperature than when using acetonitrile only but also introduces one phase solution. The sample extract was directly injected into both GC-MS/MS, of the commonly used split-less inlets, and into LC-MS/MS. Sample preparation and clean-up were also optimized. The developed method was validated according to SANTE/11813/2017 European Union guidelines. Three spiking levels of low concentrations 20, 50, 100 µg/kg were studied for the analysis of a total of 373 pesticides. Most of the studied pesticides have acceptable recovery between 80 and 110% with good reproducibility <10. There are 265 and 139 pesticides having a lower limit of quantifications equal 20 µg/kg using LC-MS/MS and GC-MS/MS, respectively. Finally, the developed method was successfully applied for the analysis of real beeswax samples.
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Affiliation(s)
- Muhammad M Issa
- Agricultural Research Center, Central Laboratory of Residue Analysis of Pesticides and Heavy Metals in Foods, P.O. Box: 12311, Dokki, Giza, Egypt
| | - Sherif M Taha
- Agricultural Research Center, Central Laboratory of Residue Analysis of Pesticides and Heavy Metals in Foods, P.O. Box: 12311, Dokki, Giza, Egypt.
| | - Ashraf M El-Marsafy
- Agricultural Research Center, Central Laboratory of Residue Analysis of Pesticides and Heavy Metals in Foods, P.O. Box: 12311, Dokki, Giza, Egypt
| | - Mostafa M H Khalil
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Eman H Ismail
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
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12
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Yeter O, Aydın A. The fate of acetamiprid and its degradation during long-term storage of honey. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2019; 37:288-303. [DOI: 10.1080/19440049.2019.1696019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Oya Yeter
- Department of Chemistry, Ministry of Justice, Council of Forensic Medicine, Istanbul, Turkey
| | - Adnan Aydın
- Faculty of Health Sciences, Demiroğlu Bilim University, Istanbul, Turkey
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13
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Calatayud-Vernich P, Calatayud F, Simó E, Pascual Aguilar JA, Picó Y. A two-year monitoring of pesticide hazard in-hive: High honey bee mortality rates during insecticide poisoning episodes in apiaries located near agricultural settings. CHEMOSPHERE 2019; 232:471-480. [PMID: 31163323 DOI: 10.1016/j.chemosphere.2019.05.170] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/17/2019] [Accepted: 05/19/2019] [Indexed: 05/21/2023]
Abstract
Pesticide residues in beebread, live and dead honey bees, together with honey bee death rate were monitored from June 2016 to June 2018 in three apiaries, located near agricultural settings and in wildlands. Dead honey bees were only collected and analyzed when significant mortality episodes occurred and pesticide content in beeswax of each experimental apiary was evaluated at the beginning of the study. Samples were extracted by a modified QuEChERS procedure and screened for pesticides residues by liquid chromatography mass spectrometry (LC-MS/MS). Pesticide hazard in the samples was evaluated through the hazard quotient approach (HQ). Beebread was widely contaminated with coumaphos and amitraz degradate 2, 4-dimethylphenylformamide (DMF), miticides detected in 94 and 97% of samples respectively. However, insecticides sprayed during citrus bloom like chlorpyrifos (up to 167 ng g -1) and dimethoate (up to 34 ng g -1) were the main responsible of the relevant pesticide hazard in this matrix. Pesticide levels in live bees were mostly residual, and pesticide hazard was low. Beeswax of the apiaries, contaminated by miticides, revealed a low pesticide hazard to honey bee colonies. Acute mortality episodes occurred only in the two apiaries located near agricultural settings. Dead bees collected during these episodes revealed high levels (up to 2700 ng g -1) of chlorpyrifos, dimethoate, omethoate and imidacloprid. HQ calculated in dead bees exceeded up to 37 times the threshold value considered as elevated hazard to honey bee health.
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Affiliation(s)
- Pau Calatayud-Vernich
- Environmental and Food Safety Research Group of the University of Valencia (SAMA-UV), Research Center on Desertification (CIDE, UV-CSIC-GV), Moncada-Naquera Road Km 4.5, 46113 Moncada, Valencia Spain.
| | - Fernando Calatayud
- Agrupación de Defensa Sanitaria Apícola (apiADS), Montroi-Turís Road, 46193, Montroi, Valencia, Spain
| | - Enrique Simó
- Agrupación de Defensa Sanitaria Apícola (apiADS), Montroi-Turís Road, 46193, Montroi, Valencia, Spain
| | - Juan Antonio Pascual Aguilar
- Centro para el Conocimiento del Paisaje, Calle Rocha del Cine 41, 12415, Matet, Castellón, Spain; Instituto Imdea Agua. Unidad de Geomática. IMDEA Water Institute, Avda. Punto Com 2, 28805, Alcalá de Henares, Spain
| | - Yolanda Picó
- Environmental and Food Safety Research Group of the University of Valencia (SAMA-UV), Research Center on Desertification (CIDE, UV-CSIC-GV), Moncada-Naquera Road Km 4.5, 46113 Moncada, Valencia Spain
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14
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Shimshoni JA, Sperling R, Massarwa M, Chen Y, Bommuraj V, Borisover M, Barel S. Pesticide distribution and depletion kinetic determination in honey and beeswax: Model for pesticide occurrence and distribution in beehive products. PLoS One 2019; 14:e0212631. [PMID: 30785931 PMCID: PMC6382162 DOI: 10.1371/journal.pone.0212631] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 02/06/2019] [Indexed: 11/18/2022] Open
Abstract
Beehive products such as honey, beeswax and recently pollen have been regarded for many years as appropriate sentinels for environmental pesticide pollutions. However, despite yearly application of hundreds of approved pesticides in agricultural fields, only a minor fraction of these organic compounds were actually detected in honey and beeswax samples. This observation has led us to question the general suitability of beehive products as a sentinel for synthetic organic pesticides applied in the field. The aim of the present study was to experimentally determine the distribution (logarithmic ratio of beeswax to honey pesticide concentration, LogD) and depletion kinetics (half-life) of selected pesticides in honey and beeswax as a measure of the latter matrixes to serve as a pesticide sentinel. The obtained parameters were used to extrapolate to pesticide burden in honey and beeswax samples collected from German and Israeli apiaries. In addition, we aimed to establish a mathematical model, enabling us to predict distribution of selected pesticides between honey to beeswax, by utilizing simple substance descriptors, namely, octanol/water partitioning coefficient, molar weight and Henry coefficient. Based on the present results, it appears that pesticides with LogD values > 1 and half-life in beeswax > 1 day, were likely to accumulate and detected in beeswax samples, and less likely to be found in honey. On the other hand, pesticides with negative LogD values were highly likely to be found in honey and less so in beeswax samples. Finally, pesticides with LogD values between 0–1 were expected to be found in both matrixes. The developed model was successfully applied to predict LogD values, thereby identifying octanol/water partitioning and molar weight as the most prominent substance descriptors, which affect pesticide distribution between honey and beeswax.
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Affiliation(s)
- Jakob A. Shimshoni
- Department of Food Quality & Safety, Institute for Postharvest and Food Sciences, Agricultural Research Organization, Volcani Center, Rishon Letzion, Israel
- * E-mail: ,
| | - Roy Sperling
- Department of Instrumental Analytic, Bilacon GMbH, Berlin, Germany
| | - Muhammad Massarwa
- Institute of Plant Protection and Inspection Services, Department of Feed Quality Laboratory, Ministry of Agriculture, Rishon Letzion, Israel
| | - Yaira Chen
- Department of Food Quality & Safety, Institute for Postharvest and Food Sciences, Agricultural Research Organization, Volcani Center, Rishon Letzion, Israel
| | - Vijayakumar Bommuraj
- Department of Food Quality & Safety, Institute for Postharvest and Food Sciences, Agricultural Research Organization, Volcani Center, Rishon Letzion, Israel
| | - Mikhail Borisover
- Department of Soil Chemistry, Plant Nutrition and Microbiology, Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, Volcani Center, Rishon Letzion, Israel
| | - Shimon Barel
- Department of Toxicology, Kimron Veterinary Institute, Bet Dagan, Israel
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15
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Non-target toxicity of novel insecticides. Arh Hig Rada Toksikol 2018; 69:86-102. [PMID: 29990301 DOI: 10.2478/aiht-2018-69-3111] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 05/01/2018] [Indexed: 01/04/2023] Open
Abstract
Humans have used insecticides since ancient times. The spectrum and potency of available insecticidal substances has greatly expanded since the industrial revolution, resulting in widespread use and unforeseen levels of synthetic chemicals in the environment. Concerns about the toxic effects of these new chemicals on non-target species became public soon after their appearance, which eventually led to the restrictions of use. At the same time, new, more environmentally-friendly insecticides have been developed, based on naturally occurring chemicals, such as pyrethroids (derivatives of pyrethrin), neonicotinoids (derivatives of nicotine), and insecticides based on the neem tree vegetable oil (Azadirachta indica), predominantly azadirachtin. Although these new substances are more selective toward pest insects, they can still target other organisms. Neonicotinoids, for example, have been implicated in the decline of the bee population worldwide. This review summarises recent literature published on non-target toxicity of neonicotinoids, pyrethroids, and neem-based insecticidal substances, with a special emphasis on neonicotinoid toxicity in honeybees. We also touch upon the effects of pesticide combinations and documented human exposure to these substances.
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16
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Fast determination of neonicotinoid insecticides in beeswax by ultra-high performance liquid chromatography-tandem mass spectrometry using an enhanced matrix removal-lipid sorbent for clean-up. Microchem J 2018. [DOI: 10.1016/j.microc.2018.06.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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17
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Calatayud-Vernich P, Calatayud F, Simó E, Picó Y. Pesticide residues in honey bees, pollen and beeswax: Assessing beehive exposure. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 241:106-114. [PMID: 29803024 DOI: 10.1016/j.envpol.2018.05.062] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 05/01/2018] [Accepted: 05/18/2018] [Indexed: 05/07/2023]
Abstract
In order to study the distribution of pesticide residues in beekeeping matrices, samples of live in-hive worker honey bees (Apis mellifera), fresh stored pollen and beeswax were collected during 2016-2017 from 45 apiaries located in different landscape contexts in Spain. A total of 133 samples were screened for 63 pesticides or their degradation products to estimate the pesticide exposure to honey bee health through the calculation of the hazard quotient (HQ). The influence of the surrounding environment on the content of pesticides in pollen was assessed by comparing the concentrations of pesticide residues found in apiaries from intensive farming landscapes to those found in apiaries located in mountainous, grassland and urban contexts. Beeswax revealed high levels of miticides used in beekeeping such as coumaphos, chlorfenvinphos, fluvalinate and acrinathrin, which were detected in more than 75% of samples. Pollen was predominantly contaminated by miticides but also by insecticides used in agriculture such as chlorpyrifos and acetamiprid, which showed concentrations significantly higher in apiaries located in intensive farming contexts. Pesticides residues were less frequent and at lower concentrations in live honey bees. Beeswax showed the highest average hazard scores (HQ > 5000) to honey bees. Pollen samples contained the largest number of pesticide residues and relevant hazard (HQ > 50) to bees. Acrinathrin was the most important contributor to the hazard quotient scores in wax and pollen samples. The contributions of the pesticides dimethoate and chlorpyrifos to HQ were considered relevant in samples.
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Affiliation(s)
- Pau Calatayud-Vernich
- Environmental and Food Safety Research Group (SAMA-UV), Research Center on Desertification (CIDE, UV-CSIC-GV), Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain.
| | - Fernando Calatayud
- Agrupación de Defensa Sanitaria Apícola (apiADS), Ctra. Montroi-Turís, 46193 Montroi, Valencia, Spain
| | - Enrique Simó
- Agrupación de Defensa Sanitaria Apícola (apiADS), Ctra. Montroi-Turís, 46193 Montroi, Valencia, Spain
| | - Yolanda Picó
- Environmental and Food Safety Research Group (SAMA-UV), Research Center on Desertification (CIDE, UV-CSIC-GV), Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain; CIBER of Epidemiology and Public Health (CIBERESP), Av. Monforte de Lemos, 3-5. Pabellón 11, 28029 Madrid, Spain
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18
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Dai P, Jack CJ, Mortensen AN, Ellis JD. Acute toxicity of five pesticides to Apis mellifera larvae reared in vitro. PEST MANAGEMENT SCIENCE 2017; 73:2282-2286. [PMID: 28485079 DOI: 10.1002/ps.4608] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 05/02/2017] [Accepted: 05/02/2017] [Indexed: 05/11/2023]
Abstract
BACKGROUND The reported high loss rates of managed honey bee colonies have been attributed to diverse stressors including pesticides. Honey bee larvae can be exposed to pesticides in contaminated nectar, pollen and wax. Due to the difficulties of rearing larvae in vitro, research focusing on adult bee exposure to pesticides is more common than that on larva exposure to pesticides. Herein, we aimed to assess the acute toxicity of five insecticides to honey bee larvae using an improved in vitro rearing method. RESULTS LC50 and LD50 were calculated for larvae at 72 h following a single diet exposure administered when the larvae were 84 ± 12 h old. Solvent control larval mortalities were less than 15% at 72 h. The LC50 values (mg L-1 ) for each tested pesticide were as follows: amitraz, 494.27; chlorpyrifos, 15.39; coumaphos, 90.01; fluvalinate, 27.69; and imidacloprid, 138.84. The LD50 values in µg per larva were 14.83 (amitraz), 0.46 (chlorpyrifos), 2.70 (coumaphos), 0.83 (fluvalinate) and 4.17 (imidacloprid). CONCLUSION The toxicity of the test pesticides to honey bee larvae from most to least toxic was chlorpyrifos > fluvalinate > coumaphos = imidacloprid > amitraz. © 2017 Society of Chemical Industry.
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Affiliation(s)
- Pingli Dai
- Key Laboratory of Pollinating Insect Biology, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
- Honey Bee Research and Extension Laboratory, Department of Entomology and Nematology, University of Florida, Gainesville, FL, USA
| | - Cameron J Jack
- Honey Bee Research and Extension Laboratory, Department of Entomology and Nematology, University of Florida, Gainesville, FL, USA
| | - Ashley N Mortensen
- Honey Bee Research and Extension Laboratory, Department of Entomology and Nematology, University of Florida, Gainesville, FL, USA
| | - James D Ellis
- Honey Bee Research and Extension Laboratory, Department of Entomology and Nematology, University of Florida, Gainesville, FL, USA
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