In-Hive Miticides and their Effect on Queen Supersedure and Colony Growth in the Honey Bee (Apis mellifera)

Rangel, Juliana

doi:10.4172/2161-0525.1000377

Cited by 21 publications

(12 citation statements)

References 45 publications

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“…Initially, a queen can be influenced by the environment that her parents experienced as a result of a trans-generational stress response [25][26][27][28]. She can also be influenced by different environmental stressors during development, either through exposure to biotic or abiotic stressors in the colony environment or specifically via the quality or quantity of royal jelly she receives [29][30][31][32][33]. After maturation, a queen may face different stresses during her nuptial flights [33][34][35] and after the onset of oviposition inside her colony [36][37][38][39][40][41][42][43].…”

Section: Introductionmentioning

confidence: 99%

Honey Bee Queens and Virus Infections

Amiri

Strand

Rueppell

2020

Viruses

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The honey bee queen is the central hub of a colony to produce eggs and release pheromones to maintain social cohesion. Among many environmental stresses, viruses are a major concern to compromise the queen’s health and reproductive vigor. Viruses have evolved numerous strategies to infect queens either via vertical transmission from the queens’ parents or horizontally through the worker and drones with which she is in contact during development, while mating, and in the reproductive period in the colony. Over 30 viruses have been discovered from honey bees but only few studies exist on the pathogenicity and direct impact of viruses on the queen’s phenotype. An apparent lack of virus symptoms and practical problems are partly to blame for the lack of studies, and we hope to stimulate new research and methodological approaches. To illustrate the problems, we describe a study on sublethal effects of Israeli Acute Paralysis Virus (IAPV) that led to inconclusive results. We conclude by discussing the most crucial methodological considerations and novel approaches for studying the interactions between honey bee viruses and their interactions with queen health.

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Section: Introductionmentioning

confidence: 99%

Honey Bee Queens and Virus Infections

Amiri

Strand

Rueppell

2020

Viruses

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“…Queen failure, which can occur due to pathogens [ 18 , 19 ], pesticide exposure [ 9 , 20 ], inadequate mating [ 6 – 8 ], or a combination of factors, has recently been reported as one of the top causes of colony losses in the U.S. [ 21 – 23 ]. To avoid sudden queen failure, many modern beekeepers have stopped relying on a colony’s natural queen replacement processes [ 2 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Modulation of the honey bee queen microbiota: Effects of early social contact

et al. 2018

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As the sole reproductive female in a honey bee (Apis mellifera) colony, the queen’s health is critical to colony productivity and longevity. Beekeeping operations typically rely on the commercial mass production of queens for colony multiplication, which involves manipulating and isolating the queens by confining them in cages during early development. Using common queen-rearing techniques, this study shows that segregating newly eclosed queens from their worker attendants for 72 hours using queen protector cages has a significant impact on the total amount of gut bacteria carried by those queens compared to queens that have unrestricted access to attendants upon eclosion. Isolated virgin queens sampled immediately after isolation at 4 days post eclosure had significantly more bacteria and a less consistent microbiota composition than their non-isolated peers. Furthermore, this effect lasted into the mating life of queens, since mated queens that had been isolated after emergence and then sampled at 14 days post eclosure also had significantly more microbiota compared to non-isolated mated queens of the same age. The causes and potential impacts of this alteration are not clear and deserve further investigation. This study also verifies earlier findings that honey bee queens lack the core microbiome found within honey bee workers.

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“…Previous studies have shown that coumaphos residues in beeswax have negative effects on the queen larvae: queen rearing in beeswax that contained 100 mg/kg of coumaphos resulted in rejection of more than 50% of the queen cells , and the surviving queens weighed less and showed reduced performance ). Furthermore, queens reared in beeswax containing a combination of fluvalinate and coumaphos at sublethal levels showed lower sperm counts in their spermathecae (Rangel and Tarpy 2015), but negative effects could not be observed on a colony level (Rangel and Tarpy 2016).…”

Section: Our Results Show That Treating Bees Againstmentioning

confidence: 93%

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

2019

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We studied the distribution of coumaphos in beeswax after a single application of CheckMite® to 15 bee colonies in the fall according to the manufacturer's instruction. Immediately after the treatment, residue levels were especially elevated in the wax that came into contact with the CheckMite® strips. During the following spring season, coumaphos levels ranged from 36 to 159 mg/kg in the wax of the brood frames next to the CheckMite® strips, and residue levels were about 10 times lower in the wax of frames that did not come into contact with the strips. Beeswax that was newly constructed 5 months after removing the treatment strips contained up to 7.3 mg/kg of coumaphos, and up to 0.5 and 2.3 mg/kg was detected in the honeycomb and capping wax, respectively. These results suggest that beeswax exposed to CheckMite® should not be recycled in order to prevent elevated concentrations of coumaphos in new foundations and hence to prevent honeybee larvae from being exposed to detrimental residue levels.beeswax / coumaphos / CheckMite® / honeybees / Apis mellifera / Varroa destructor

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In-Hive Miticides and their Effect on Queen Supersedure and Colony Growth in the Honey Bee (Apis mellifera)

Cited by 21 publications

References 45 publications

Honey Bee Queens and Virus Infections

Honey Bee Queens and Virus Infections

Modulation of the honey bee queen microbiota: Effects of early social contact

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

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