The bees are in trouble for a myriad of reasons: loss of habitat, agrichemicals, climate change, bacterial diseases, fungi, and parasites like the armor-piercing, blood-sucking varroa
mite, their single greatest threat.
This study was planned to check the efficacy of four different essential oils (neem oil, lemon oil, eucalyptus oil and orange oil) at different doses against percent mortality of Varroa
Among these, the Varroa
destructor) has been shown to have a critical effect on honeybee populations, both by its direct parasitic effects and through the transmission of pathogenic viruses such as deformed wing virus (2).
A third (31%) feared the loss of forage from agricultural development, 28% were worried about varroa
mite pests, 28% were concerns about the invasive Asian hornet, which preys on honey bees, and 28% were anxious about climate change.
Paul Cross, senior lecturer at Bangor University's School of Environment, Natural Resources and Geography, said: "Bee populations, our vital crop and fruit pollinators, are in serious decline; their survival faces challenges on several fronts, insecticides and varroa
mites, to name a few.
Contract notice: pilot project restructuring the honey bee chain and varroa
resistance breeding and selection programme.
And beehives are the target of pests such as varroa
mites, ants, wax moths, and mice.
The aptly named Varroa
destructor (commonly the varroa
mite) is an external parasitic mite that, like a tiny tick, attaches itself to the bee's exterior and sucks its blood (bees' yellowish blood, or hemolymph, doesn't carry oxygen, a job performed by the tracheal system, and so doesn't contain the red pigment hemoglobin).
None of the busy little winged bearers of pollen and nectar will get by without inspection: The prime suspect--an eight-legged, pinhead-sized parasite called the Varroa
mite--seems to be sneaking into the hives on the bees' bodies.
destructor, Oudemans (1904) is a mite visible to the naked eye and is passed from bee Asian (Apis cerana) to honeybees (Apis mellifera) in the early 1980.
The ectoparasitic mite Varroa
destructor Anderson & Trueman (Acari: Mesostigmata: Varroidae) is the most serious threat to beekeeping worldwide (Cox-Foster et al.
The parasitic mite Varroa
destructor feasts on bees of all ages and reproduces on developing bees.