Fiabilidad de los principales métodos de diagnóstico de Varroa destructor en colonias de abejas

Flores, José Manuel; Gil, Sergio; Padilla, F.

doi:10.21071/az.v64i246.391

Cited by 14 publications

(6 citation statements)

References 14 publications

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“…That is, it has reduced, this is probably due to the little transhumance that takes place in this province. So, if we use the data obtained in the research to transfer to the Flores et al [10]. To determine the percentage of infestation; it gives us reliability to the data obtained; therefore, we obtain an average of both the analyzed individuals and the detected varroa.…”

Section: Resultsmentioning

confidence: 99%

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Study of the Varroasis Infestation Rate in the Central Area of Ecuador

Silva¹,

Clavijo²,

Villafuerte³

et al. 2020

Int J Curr Pharm Sci

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Objective: To study the Varroasis Infestation rate in the central area of Ecuador. Methods: The experimental phase was developed in four apiaries distributed in the provinces: Bolivar, Tungurahua, Chimborazo and Los Rios (12 hives), the experimentation lasted 65 d. A DCA design was applied. Three different systems were used for the identification of varroa: soapy water (SW), honeycomb cut (HC) and the cardboard with semi-solid petrolatum (CSP). Results: With the SW method, it was obtained that Chimborazo has 23.14%; followed by Tungurahua (7.99%); Los Rios (3.24%) and finally Bolivar with (0.51%); with the HC method, it was determined that Chimborazo has the highest incidence with 9.13%; followed by Bolivar and finally Los Rios; with the CSP method, the province of Chimborazo presents the highest infestation (26250 individuals); followed by Bolivar, Tungurahua, and Los Rios. Regarding the production of eggs for each frame, 3 frames taken from the brood chamber were used in each of the apiaries under study; Chimborazo being where there is less quantity of eggs for each frame, followed by Bolivar, Tungurahua and finally Los Ríos. Conclusion: The higher the geographical height, the greater the Varroa infestation.

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Section: Resultsmentioning

confidence: 99%

“…Regarding the honeycomb cutting method, Flores et al [10], states that the main drawback of this method is due to the fact that some varroas will remain in the cells, causing a certain error, but that is compensated by the ease of application.…”

Section: Fig 1: Quantity and Percentages Of Varroa Found With The Honeycomb Methodsmentioning

confidence: 99%

Study of the Varroasis Infestation Rate in the Central Area of Ecuador

Silva¹,

Clavijo²,

Villafuerte³

et al. 2020

Int J Curr Pharm Sci

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“…The sugar shake and alcohol wash mite detection methods are similar. Using these tests, the bees are covered in either icing sugar or in alcohol, respectively, before being vigorously shaken (De Jong et al, 1982, Fakhimzadeh 2000, Ellis and Macedo 2001, Macedo et al, 2002, Azizi et al, 2008, Vesco and Guido 2014, Flores et al, 2015, Macedo et al, 2015, Dunaway 2016, de Feraudy et al, 2019, Oliver 2020.…”

Section: Methodsmentioning

confidence: 99%

Varroa destructor detection in non-endemic areas

2021

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Australia is one of the few countries where Apis mellifera are not infested by the parasitic mite Varroa destructor . In Australia a program called the 'Sugar Shake Team' has been implemented to detect an incursion of V. destructor , should it occur. The aim of this paper was to provide an estimate of the probability that V. destructor would be detected by the Sugar Shake Team program if an incursion had actually occurred (surveillance system sensitivity) using a scenario tree modelling approach. A secondary aim was to provide commentary on how surveillance for V. destructor incursions into Australia might be made more effective. Our analyses show that if one apiary in the study area was infested with V. destructor , there was only a 0.47% probability that infestation would be detected by the current program. We conclude that in its current form the Sugar Shake Team program does not provide protection to multi-billion-dollar beekeeping, pollination and agricultural industries in Australia. Surveillance for V. destructor can be made more effective by increasing the coverage and frequency of testing, deployment of additional sentinel hives and the use of sticky boards.surveillance / scenario tree / Australia / biosecurity / mites

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“…Disease prevalence was monitored by detecting clinical signs of the most common diseases. The levels of varroa mites were measured at each visit by counting the natural mite fall over a 48 h period, using the bottom board method [42], confirming low varroa levels for the duration of the study. During the field season, a log was kept of all colony and beekeeping activities (e.g., swarming events, supplementary feeding, and adding honey supper).…”

Section: Colony Development Parametersmentioning

confidence: 97%

Exploring the External Environmental Drivers of Honey Bee Colony Development

Capela,

Sarmento,

Simões

et al. 2023

Diversity

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Honey bees play an important role in agricultural landscapes by providing pollination services. Throughout the season, colonies increase their population and collect resources from the available flowering plants. Besides internal mechanisms, such as the amount of brood or the availability of bees to perform foraging flights, colonies are also influenced by the climate and the surrounding landscape. Therefore, exposure to different environmental contexts leads to distinct development rates. In this study, we show how colonies develop under three different landscape contexts and explore which external variables (mostly climate and resources availability) influence the colonies’ development. We installed three apiaries in three different landscapes in the Iberian Peninsula, with temporal and spatial variation in climatic conditions and resource availability. The availability of resources and their use, as well as the development of colonies throughout the season, were thoroughly investigated. These data were used to take the first step into creating an ecologically relevant landscape by calculating the number of available resources in the landscape at different points in time, based on plants’ beekeeping interest as well as nectar and production. Furthermore, climatic variables were transformed into the amount of available foraging minutes that bees had to collect resources, and a theoretical threshold of optimal vs. sub-optimal conditions was also explored. Interestingly, the main drivers of colony development (measured by daily weight increase) were not the same in the tested apiaries, evidencing how colonies are indeed intrinsically connected with the surrounding environmental scenario. Therefore, results from field testing are extremely context-dependent and should be interpreted with caution when being extrapolated to other environmental scenarios.

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Fiabilidad de los principales métodos de diagnóstico de Varroa destructor en colonias de abejas

Cited by 14 publications

References 14 publications

Study of the Varroasis Infestation Rate in the Central Area of Ecuador

Study of the Varroasis Infestation Rate in the Central Area of Ecuador

Varroa destructor detection in non-endemic areas

Exploring the External Environmental Drivers of Honey Bee Colony Development

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