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The bees cannot fly, and often crawl on the ground and up plant stems. In some cases, the crawling bees can be found in large numbers (1000+). The bees huddle together on the top of the cluster or on the top bars of the hive. They may have bloated abdomens due to distension of the honey sac. The wings are partially spread or dislocated.
Printable version; In other projects Wikimedia Commons; Wikidata item; ... Pages in category "Bee diseases" The following 13 pages are in this category, out of 13 total.
Sacbrood virus or SBV disease is an infectious disease caused by the Morator aetatulas virus that affects honey bee larvae. When sick, the colony declines gradually with few or no replacement workers, costing 20-80% of honey production.
Deformed wing virus (DWV) is a positive-strand [1] RNA virus, one of 22 known viruses affecting honey bees.While most commonly infecting the honey bee, Apis mellifera, it has also been documented in other bee species, like Bombus terrestris, [2] thus, indicating it may have a wider host specificity than previously anticipated.
Malpighamoeba mellificae is a single-celled parasite which affects excretory organs (Malpighian tubules) of adult bees, causing the contagious disease called amoebiasis, which ultimately leads to death of the host. [1] Worker bees are most prone to being infected. It is commonly found in collaboration with nosemosis.
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.
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Bees infected with CBPV begin to show symptoms after 5 days and die a few days after. [1] Chronic bee paralysis virus infection is a factor that can contribute to or cause the sudden collapse of honeybee colonies. [2] Since honeybees serve a vital role in ecological resilience, it is important to understand factors and diseases that threaten them.