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Stimulating effect of sugar dusting on honey bee grooming behaviour

Dusting of bees with icing sugar resulted in higher percentage of damaged Varroa mites among the total number collected on the hive bottom board. It is recommended to treat colonies with 40-30 g of icing sugar every 7 days Stimulating effect of sugar dusting on honey bee grooming behaviour,
Entomologia Experimentalis et Applicata
, Volume 143, p.23-30, (2012)
[1].

Hypopharyngeal glands, side view

Side view of hypopharyngeal glands (marked red) of honey bee worker (see also dissected hypopharyngeal glands).

Predictive markers of honey bee colony collapse

Varroa mites are strongly associated with colony collapse during winter Predictive markers of honey bee colony collapse,
PLoS ONE
, Volume 7, Number 2, p.e32151, (2012)
[4].

Adult honey bees (Apis mellifera) with deformed wings discovered in confirmed varroa-free colonies

Workers with deformed wings were found in colonies not infected with Varroa mites. Deformed wing virus (DWV) was present in the workers but at low level which usually does not cause deformations Adult honey bees (Apis mellifera) with deformed wings discovered in confirmed varroa-free colonies,
Journal of Apicultural Research
, Volume 51, p.136-138, (2012)
[7].