Effects of coumaphos on queen rearing in the honey bee, <i>Apis mellifera</i>

Pettis, Jeffery S.; Collins, Anita M.; Wilbanks, Reg.; Feldlaufer, Mark F.

doi:10.1051/apido:2004056

Cited by 125 publications

(80 citation statements)

References 8 publications

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“…Queen problems may lead to weak colonies and thus high losses. In addition, queen problems can be an indication of colony problems (Collins and Pettis 2013;Pettis et al 2004;Tarpy et al 2012). Note that even though our survey shows an association between queen problems and colony losses, it does not imply a causal relationship.…”

Section: Discussioncontrasting

confidence: 59%

Managed honeybee colony losses of the Eastern honeybee (Apis cerana) in China (2011–2014)

et al. 2017

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-Colony losses of managed honeybees have raised a major concern, and surveys of colony losses were conducted around the globe to understand the apicultural situation. Up to now, most studies have focused on the mortality of the Western honeybee (Apis mellifera ); however, little is known about the mortality of its eastern counterpart-the Eastern honeybee (Apis cerana ). Here, we report the survey results of A. cerana colony losses in three consecutive years (2011-2012, 2012-2013, and 2013-2014) in China. Colony losses were low overall (12.8%, 95% CI 11.9-13.7%) but varied among years, provinces, and types of apiaries. We used generalized linear mixed effects models to estimate the effects of possible risk factors and found that queen problems (queenless or dronelaying queens) were associated with colony losses. Further analyses showed that differences in mortality among different types of apiaries may be contributable to the differences in queen problems. This is the first survey of colony losses of A. cerana .

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Section: Discussioncontrasting

confidence: 59%

Managed honeybee colony losses of the Eastern honeybee (Apis cerana) in China (2011–2014)

et al. 2017

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“…Biotic factors, such as differences in drone availability, density, and sperm loads among males, could also create significant variation among queens (Haberl and Tautz, 1999;Schluns et al, 2003). Management practices may also significantly affect the overall quality of queens across sources, as different genetic stocks (see Tarpy and Nielsen, 2002), chemical treatments (Haarmann et al, 2002;Pettis et al, 2004), and hive environments (Woyke, 1983;da Silva et al, 1995) are all significant factors in the reproductive biology of queens.…”

Section: Discussionmentioning

confidence: 99%

The physical, insemination, and reproductive quality of honey bee queens (Apis mellifera L.)

et al. 2011

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-Understanding the reproductive potential ("quality") of queens bees can provide valuable insights into factors that influence colony phenotype. We assayed queens from various commercial sources for various measures of potential queen quality, including their physical characters (such as their degree of parasitism), insemination number (stored sperm counts), and effective paternity frequency (number of drone fathers among their offspring). We found significant variation in the physical, insemination, and mating quality of commercially produced queens, and we detected significant correlations within and among these various measures. Overall, the queens were sufficiently inseminated (3.99 ± 1.504 million sperm) and mated with an appropriate number of drones (effective paternity frequency: 16.0 ± 9.48). Importantly, very few of the queens were parasitized by tracheal mites and none were found with either Nosema species. These findings suggest possible mechanisms for assessing the potential fitness of honey bee queens without the need for destructive sampling.honey bee queens / reproductive potential / insemination / parasitism / effective mating frequency

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“…As no single explanation for the extensive colony losses has been identified, it is concluded that many biological and environmental stressors, acting alone or in combination, can lead to premature colony mortality (vanEngelsdorp et al 2009, Genersch 2010. Along with bee diseases, many problems in beekeeping are caused by chemicals used against honey bee pathogens, whose appliance is accompanied by side effects on bees and brood (Pettis et al 2004a, 2004b, Loucif-Ayad et al 2008, contamination of bee products (Bogdanov 2006) and health risk to beekeepers and bee product consumers (Stanimirovic et al 2005, Stevanovic et al 2008, Radakovic et al 2013. Therefore, it would be benefitial if some harmless naturalbased supplements could provide maintaining healthy and strong honey bee colonies and help in prevention of their mortality.…”

Section: Honey Bees Apis Mellifera L (Hymenopteramentioning

confidence: 99%

The effect of Agaricus brasiliensis extract supplementation on honey bee colonies

Stevanović

Stanimirović

Simeunović

et al. 2018

An. Acad. Bras. Ciênc.

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This study was done to discover any beneficial effect of a medicinal mushroom Agaricus brasiliensis extract on the honey bee. Firstly, a laboratory experiment was conducted on 640 bees reared in 32 singleuse plastic rearing cups. A. brasiliensis extract proved safe in all doses tested (50, 100 and 150 mg/kg/ day) irrespective of feeding mode (sugar syrup or candy). Secondly, a three-year field experiment was conducted on 26 colonies treated with a single dose of A. brasiliensis extract (100 mg/kg/day) added to syrup. Each year the colonies were treated once in autumn and twice in spring. The treatments significantly increased colony strength parameters: brood rearing improvement and adult population growth were noticed more often than the increase in honey production and pollen reserves. These positive effects were mainly observed in April. In conclusion, A. brasiliensis extract is safe for the bees and helps maintaining strong colonies, especially in spring.

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Effects of coumaphos on queen rearing in the honey bee, Apis mellifera

Cited by 125 publications

References 8 publications

Managed honeybee colony losses of the Eastern honeybee (Apis cerana) in China (2011–2014)

Managed honeybee colony losses of the Eastern honeybee (Apis cerana) in China (2011–2014)

The physical, insemination, and reproductive quality of honey bee queens (Apis mellifera L.)

The effect of Agaricus brasiliensis extract supplementation on honey bee colonies

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