Why do you find bees with no wings? We take a closer look at some of the reasons you might be finding bees with missing wings.
The main reason you find bees with no wings is an RNA virus named Deformed wing virus often referred to as DWV. The Deformed wing virus mainly affects honeybees (Apis mellifera) but has been observed in some species of bumblebee (Bombus terrestris) including the buff-tailed bumblebee and the large earth bumblebee.
Other noticeable symptoms may include:
The Deformed wing virus displays itself predominantly in the malformation of honeybees wings. As the honeybee develops through the different stages of its lifecycle signs of the virus will become apparent. Wings will not form properly at the larval stage and deformation of the abdomen may also be present in some cases.
DWV is also closely linked to Varroa mite infestation. Although DWV is found in colonies without Varroa those that are infected are more severely affected by the virus.
Can bees grow their wings back? No, unlike reptiles bees are unable to regrow their lost or damaged wings.
Sadly any bees affected by Deformed wing virus have a considerably reduced lifespan and can only expect to I've around 24 hours.
Interestingly healthy members of the colony will often eject bees suffering from DWV from the hive. This often means that bees missing their wings can be quite obvious due to the number of them outside but in close proximity to the entrance of the hive.
The virus was originally isolated in honeybees from Japan in the early 1980's. Since then it has spread worldwide and affects managed and wild colonies of honeybees all over the world.
In managed colonies, there are methods to treat Varroa mites which in turn can help mediate the effect of Deformed Wing Virus. Beekeepers can deploy mite treatments to keep DWV to a minimum amongst the population. This normally consists of treating the hive with a vapour that kills the mites but does not affect bees.
So now you know why you're finding bees with no wings and some of the ways beekeepers are trying to prevent the further spread of this damaging virus.