Mites in host, Honey bee tracheal mite (Acarapis woodi); A. woodi mites, internal parasites of Apis mellifera (common honey bee), visible in bee. Acarapis woodi: beekeeping: Diseases: is caused by the mite Acarapis woodi that gets into the tracheae of the bee through its breathing holes or spiracles in. Acarapis woodi kills by clogging the breathing tubes of the bees and the normally elastic trachea becomes brittle and stiff, and flight muscles atrophy. The effects.

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History Acarapis woodi was unknown in the United States untilwhen it wcarapis found in Mexico only miles south of the Texas border.

Organizations Top of page World: The symptoms of Acarapis woodi infestation were originally called acadapis beekeepers as the Isle of Wight Diseasehowever it is now called Acarineafter the Subclass to which the mites belong. Ventral apodemes I forming Y-shaped structure with anterior median apodeme a conspicious transverse band crossing the thorax in front of the scutellumnot joining transverse apodeme. Once mated, the female mites leave the tracheae, moving to the external surface of the bee to locate a new bee and begin the reproductive cycle again.

Workers and drones disperse them when moving from hive to hive; the mite is dispersed through entire apiaries or from one apiary to another Woodward and Quinn, acarais Once in a hive, the mites can move quickly through a colony via bee-to-bee contact. More than a hundred mites can populate the tracheae and weaken the bees. Organic chemical treatments that contain thymol gel or formic acid are also widely used to control Tracheal mite and have been shown to be highly effective in overseas countries.


Cornell University Press, Ithaca. Honey Bee Pests, Predators, and Diseases. Length to microns, width 75 wlodi 84 microns.

Posterior median apodeme rudimentary, sometimes as faintly formed Y- shaped structure. Observations and experiments bearing on the “Island of Wight” disease. No setae between trochanters IV 4b absent Figs.

Texas Invasive Species Institute

The mites cannot survive longer than a few hours in this transfer process outside of an adult bee. Honey bees feeding and grooming are key means of spread of Tracheal mite between adult bees. Ventral apodemes I forming Y-shaped structure with anterior median apodeme a conspicuous transverse band crossing the thorax in front of the woldinot joining transverse apodeme. Tracheal mitesUniversity of Tennessee.

Acarapis woodi (honeybee mite)

An easy dissection technique for finding the tracheal mite, Acarapis woodi Rennie Acari: Bees also encounter mites when they rob honey from other hives; and colonies weakened from heavy mite infested are wooi prone to being robbed.

Journal of Apicultural Research 4: Apidae in New York. Tarsonemidae and Nosema disease, Nosema sp. The female is capable of laying almost one egg a day, each of which woldi about two thirds the weight of the female herself. In early July it was found at a commercial beekeeping enterprise in Weslaco, Texas; the following month they were found in Louisiana and by October they were reported in Florida, Nebraska, New York, North Dakota and South Dakota.


Leg IV stubby, widely spaced; femur-genu and acaralis functioning as one segment; tibiotarsus IV two times as long as broad; femur-genu broader than long, with three setae unequal length; tibiotarsus abruptly narrowed, almost straight, about two times as long as broad.

Acarapis woodi

Datasheet Acarapis woodi honeybee mite. Isle of Wight disease in hive bees – Acarine disease: World Organisation for Animal Health.

Mites move quickly through a colony via bee-to-bee contact within the hive. Some British bees and some North American strains show a certain amount of resistance to the mites Bailey Colonies that develop severe infestations usually do so in late summer wwoodi die in late winter.

Apodemes V present as weakened transverse apodeme barely discernible.

Although found predominantly in the tracheae of honey bees, they are sometimes also found in the head, thoracic and abdominal air sacs. Cornell University Press, Ithaca.