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Varroa destructor, the Varroa mite, is an external parasitic mite that attacks and feeds on honey bees and is one of the most damaging honey bee pests in the world. [ 2 ] [ 3 ] A significant mite infestation leads to the death of a honey bee colony, usually in the late autumn through early spring.
Varroa is a genus of parasitic mesostigmatan mites associated with honey bees, placed in its own family, Varroidae. [4] The genus was named for Marcus Terentius Varro , a Roman scholar and beekeeper.
Varroa mites also affect the queen's ability to reproduce, which is detrimental to the survival of the hive. [43] As such, Varroa mites have been considered as a possible cause of CCD, though not all dying colonies contain these mites. [85] Varroa destructor is a parasitic mite that colonizes beehives and preys on honey bees by consuming their ...
Varroa destructor on the head of bee pupa. Varroa sensitive hygiene (VSH) is a behavioral trait of honey bees (Apis mellifera) in which bees detect and remove bee pupae that are infested by the parasitic mite Varroa destructor. V. destructor is considered to be the most dangerous pest problem for honey bees worldwide. VSH activity results in ...
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USS Arleigh Burke (DDG-51) This is a list of destroyers of the United States Navy, sorted by hull number.It includes all of the series DD, DL, DDG, DLG, and DLGN. CG-47 Ticonderoga and CG-48 Yorktown were approved as destroyers (DDG-47 and DDG-48) and redesignated cruisers before being laid down; it is uncertain whether CG-49 Vincennes and CG-50 Valley Forge were ever authorized as destroyers ...
By the last years of the first decade of the 20th century, Admiral Graf Rudolf Montecuccoli, head of the Austro-Hungarian Navy (German: kaiserliche und königliche Kriegsmarine), recognized that the latest Huszár-class destroyers were already obsolete in comparison to larger and faster foreign destroyers.
The contract to build DDG-47 Ticonderoga was awarded to Ingalls Shipbuilding on 22 September 1978. The ship's design was based on that of the Spruance-class destroyer.While sharing the same hull, the Ticonderoga-class design featured two large deckhouses and the Aegis combat system that together increased the ship's displacement from the Spruance-class baseline of 6,900 tons to 9,600 tons.