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Boron and Coumaphos Residues in Hive Materials Following Treatments for the Control of Aethina tumida Murray.

Valdovinos-Flores C, Gaspar-Ramírez O, Heras-Ramírez ME, Lara-Álvarez C, Dorantes-Ugalde JA, Saldaña-Loza LM - PLoS ONE (2016)

Bottom Line: The quantity of boron in honey was significantly less in Yucatan than in Tamaulipas; this agrees with the boron deficiency among Luvisol and Leptosol soils found in Yucatan compared to the Vertisol soil found in Tamaulipas.On the other hand, the organophosphate pesticide coumaphos was found in 100% of wax samples and in 64% of honey samples collected from Yucatan.The concentration of coumaphos in honey ranges from 0.005 to 0.040 mg/kg, which are below Maximum Residue Limit (MRL) allowed in the European Union (0.1 mg/kg) but 7.14% of samples exceeded the MRL allowed in Canada (0.02 mg/kg).

View Article: PubMed Central - PubMed

Affiliation: Departamento de Medicina Genómica y Toxicología Ambiental/ Instituto de Investigaciones Biomédicas/ Universidad Nacional Autónoma de México, Ciudad de México, México.

ABSTRACT
In the search of alternatives for controlling Aethina tumida Murray, we recently proposed the BAA trap which uses boric acid and an attractant which mimics the process of fermentation caused by Kodamaea ohmeri in the hive. This yeast is excreted in the feces of A. tumida causing the fermentation of pollen and honey of infested hives and releasing compounds that function as aggregation pheromones to A. tumida. Since the boron is the toxic element in boric acid, the aim of this article is to assess the amount of boron residues in honey and beeswax from hives treated with the BAA trap. For this aim, the amount of bioaccumulated boron in products of untreated hives was first determined and then compared with the amount of boron of products from hives treated with the BAA trap in two distinct climatic and soil conditions. The study was conducted in the cities of Padilla, Tamaulipas, and Valladolid, Yucatan (Mexico) from August 2014 to March 2015. The quantity of boron in honey was significantly less in Yucatan than in Tamaulipas; this agrees with the boron deficiency among Luvisol and Leptosol soils found in Yucatan compared to the Vertisol soil found in Tamaulipas. In fact, the honey from Yucatan has lower boron levels than those reported in the literature. The BAA treatment was applied for four months, results show that the BAA trap does not have any residual effect in either honey or wax; i.e., there is no significant difference in boron content before and after treatment. On the other hand, the organophosphate pesticide coumaphos was found in 100% of wax samples and in 64% of honey samples collected from Yucatan. The concentration of coumaphos in honey ranges from 0.005 to 0.040 mg/kg, which are below Maximum Residue Limit (MRL) allowed in the European Union (0.1 mg/kg) but 7.14% of samples exceeded the MRL allowed in Canada (0.02 mg/kg).

No MeSH data available.


Related in: MedlinePlus

Comparison of boron levels of hives in Yucatan against hives in Tamaulipas.(A) honey, and (B) beeswax. Each point is a sample; the middle bar represents the median ± interquartile range (n = 14). Data were analyzed using Mann Whitney U test * p = 0.01.
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pone.0153551.g003: Comparison of boron levels of hives in Yucatan against hives in Tamaulipas.(A) honey, and (B) beeswax. Each point is a sample; the middle bar represents the median ± interquartile range (n = 14). Data were analyzed using Mann Whitney U test * p = 0.01.

Mentions: On the contrary, results show a significant difference in boron content in honey between the two studied regions (Mann Whitney p = 0.001); the concentration of boron in honey collected from Tamaulipas was higher (6.071 ± 1.53 mg/kg) than the concentration found in Yucatan (4.89 ± 1.11 mg/kg) as shown in Fig 3. Furthermore, a great variation was observed in the boron content in wax 12.871 ± 8.047 mg/kg as shown in Fig 3.


Boron and Coumaphos Residues in Hive Materials Following Treatments for the Control of Aethina tumida Murray.

Valdovinos-Flores C, Gaspar-Ramírez O, Heras-Ramírez ME, Lara-Álvarez C, Dorantes-Ugalde JA, Saldaña-Loza LM - PLoS ONE (2016)

Comparison of boron levels of hives in Yucatan against hives in Tamaulipas.(A) honey, and (B) beeswax. Each point is a sample; the middle bar represents the median ± interquartile range (n = 14). Data were analyzed using Mann Whitney U test * p = 0.01.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4836730&req=5

pone.0153551.g003: Comparison of boron levels of hives in Yucatan against hives in Tamaulipas.(A) honey, and (B) beeswax. Each point is a sample; the middle bar represents the median ± interquartile range (n = 14). Data were analyzed using Mann Whitney U test * p = 0.01.
Mentions: On the contrary, results show a significant difference in boron content in honey between the two studied regions (Mann Whitney p = 0.001); the concentration of boron in honey collected from Tamaulipas was higher (6.071 ± 1.53 mg/kg) than the concentration found in Yucatan (4.89 ± 1.11 mg/kg) as shown in Fig 3. Furthermore, a great variation was observed in the boron content in wax 12.871 ± 8.047 mg/kg as shown in Fig 3.

Bottom Line: The quantity of boron in honey was significantly less in Yucatan than in Tamaulipas; this agrees with the boron deficiency among Luvisol and Leptosol soils found in Yucatan compared to the Vertisol soil found in Tamaulipas.On the other hand, the organophosphate pesticide coumaphos was found in 100% of wax samples and in 64% of honey samples collected from Yucatan.The concentration of coumaphos in honey ranges from 0.005 to 0.040 mg/kg, which are below Maximum Residue Limit (MRL) allowed in the European Union (0.1 mg/kg) but 7.14% of samples exceeded the MRL allowed in Canada (0.02 mg/kg).

View Article: PubMed Central - PubMed

Affiliation: Departamento de Medicina Genómica y Toxicología Ambiental/ Instituto de Investigaciones Biomédicas/ Universidad Nacional Autónoma de México, Ciudad de México, México.

ABSTRACT
In the search of alternatives for controlling Aethina tumida Murray, we recently proposed the BAA trap which uses boric acid and an attractant which mimics the process of fermentation caused by Kodamaea ohmeri in the hive. This yeast is excreted in the feces of A. tumida causing the fermentation of pollen and honey of infested hives and releasing compounds that function as aggregation pheromones to A. tumida. Since the boron is the toxic element in boric acid, the aim of this article is to assess the amount of boron residues in honey and beeswax from hives treated with the BAA trap. For this aim, the amount of bioaccumulated boron in products of untreated hives was first determined and then compared with the amount of boron of products from hives treated with the BAA trap in two distinct climatic and soil conditions. The study was conducted in the cities of Padilla, Tamaulipas, and Valladolid, Yucatan (Mexico) from August 2014 to March 2015. The quantity of boron in honey was significantly less in Yucatan than in Tamaulipas; this agrees with the boron deficiency among Luvisol and Leptosol soils found in Yucatan compared to the Vertisol soil found in Tamaulipas. In fact, the honey from Yucatan has lower boron levels than those reported in the literature. The BAA treatment was applied for four months, results show that the BAA trap does not have any residual effect in either honey or wax; i.e., there is no significant difference in boron content before and after treatment. On the other hand, the organophosphate pesticide coumaphos was found in 100% of wax samples and in 64% of honey samples collected from Yucatan. The concentration of coumaphos in honey ranges from 0.005 to 0.040 mg/kg, which are below Maximum Residue Limit (MRL) allowed in the European Union (0.1 mg/kg) but 7.14% of samples exceeded the MRL allowed in Canada (0.02 mg/kg).

No MeSH data available.


Related in: MedlinePlus