The Varroa mite can reproduce only in a honey bee colony. It attaches to the body of the bee and weakens the bee by sucking fat bodies. The species is a vector for at least five debilitating bee viruses, including RNA viruses such as the deformed wing virus (DWV).
Why is the varroa mite less of a problem to its native host Apis cerana than it is to Apis mellifera?
Varroa are ectoparasites that feed on the hemolymph of immature and adult honey bees. Apis mellifera, the Western honey bee, is not the mite’s natural host. Apis cerana is believed to have some natural defenses against the mite and consequently rarely is affected negatively by the mite.
Is Varroa destructor a parasite?
The parasitic mite, Varroa destructor, has shaken the beekeeping and pollination industries since its spread from its native host, the Asian honey bee (Apis cerana), to the naïve European honey bee (Apis mellifera) used commercially for pollination and honey production around the globe.
Is Varroa destructor invasive?
The Beekeepers’ Nightmare. Invasive species can new cause havoc to the new environment that they happen to fall into. None more so than the movement of a small maroon coloured mite called Varroa destructor on to the western Honeybee, Apis mellifera. There are many mites that infest bees but only a few are pathogenic.
What was the original host for Varroa?
The ectoparasitic mite, Varroa destructor, shifted host from the eastern honeybee, Apis cerana, to the western honeybee, Apis mellifera. Whereas the original host survives infestations by this parasite, they are lethal to colonies of its new host.
Where did Varroa destructor originate?
Site and Date of Introduction: Varroa mites were first found on imported European honeybees (Apis mellifera) in Hong Kong and Singapore in 1963 and spread through Asian apiculture of this species over the next decade. They appeared next in various countries in Europe and South America in the early- to mid-70’s.
Where is Varroa destructor native to?
The “new” species, christened Varroa destructor, is endemic to Korea, Japan, and Thailand. Of the two, V. destructor has been definitively identified as the variety involved in current infestations of European honeybees.
How was the Varroa destructor mite introduced to North America?
In the late 1940s, Through movement of the western honey bee, Apis mellifera, colonies into and out of Asia, Varroa mite became established on honey bees first in Africa and then in Europe. It was first detected in the U.S. in 1987; Mexico and Canada quickly closed their borders to U.S. bees.
How was the Varroa destructor introduced to North America?
How did the varroa mite spread?
The varroa mite spreads from hive to hive through contact with bees from other colonies, even to colonies located several miles away. During natural and assisted reproduction and robbing, the varroa mite travels on the back of the host bee to nearby hives, where it continues to multiply and spread.
Are varroa mites harmful to humans?
Hosts: The Varroa mite is an external parasite of honey bees that attacks adult bees and their developing larvae, or brood. The mite can spread quickly to other bee colonies by traveling with swarms or migrating drones, and by the movement of infested equipment. It is not harmful to humans or livestock.
Why are bee’s important to our environment?
As pollinators, bees play a part in every aspect of the ecosystem. They support the growth of trees, flowers, and other plants, which serve as food and shelter for creatures large and small. Bees contribute to complex, interconnected ecosystems that allow a diverse number of different species to co-exist.
