Acarapis woodi (honeybee mite)
Index
- Pictures
- Identity
- Summary of Invasiveness
- Taxonomic Tree
- Notes on Taxonomy and Nomenclature
- Diseases Table
- Distribution
- Distribution Table
- History of Introduction and Spread
- Introductions
- Risk of Introduction
- Pathogen Characteristics
- Host Animals
- Notes on Natural Enemies
- Pathway Causes
- Pathway Vectors
- Economic Impact
- Environmental Impact
- Social Impact
- Risk and Impact Factors
- References
- Organizations
- Contributors
- Distribution Maps
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Top of pageIdentity
Top of pagePreferred Scientific Name
- Acarapis woodi Rennie
Preferred Common Name
- honeybee mite
Other Scientific Names
- Tarsonemus woodi (Rennie, 1921)
International Common Names
- English: acarine mite; honey bee tracheal mite; internal mite; Tarsonemid mite; tracheal mite
Local Common Names
- Germany: Bienenmilbe; Honigbienenmilbe
- UK: acarine disease mite; Isle of Wight disease mite
- USA: honey bee mite
EPPO code
- ACASWO (Acarapis woodi)
Summary of Invasiveness
Top of pageA. woodi is a tracheal mite affecting the respiratory system of honey bees, causing the disease acarapisosis. These microscopic mites measure 150 μm in length and feed on the haemolymph of their hosts. They enter, live in and reproduce in the large prothoracic tracheae of all bees, but can also be found in the head, thoracic and abdominal air sacs (OIE, 2012).
Honey bee tracheal mites were first reported from dying bee colonies on the Isle of Wight (UK) in 1921 (Woodward and Quinn, 2011). The mites were thought to be responsible for “Isle of Wight disease”, but later evidence suggested that the disease could not be attributed to them (Bailey, 1964 in Denmark et al., 2000). Widespread bee mortality was attributed to the mites in early twentieth-century Europe. They were first discovered in the USA in 1984, and spread rapidly, as a result of swarming, robbing of bee colonies by others, and movement of bees by humans (Woodward and Quinn, 2011). The introduction of A. woodi to the USA caused widespread losses of bee colonies and entire apiaries.
Acarapisosis of honey bees is on the list of diseases notifiable to the World Organisation for Animal Health (OIE).
Taxonomic Tree
Top of page- Domain: Eukaryota
- Kingdom: Metazoa
- Phylum: Arthropoda
- Subphylum: Chelicerata
- Class: Arachnida
- Subclass: Acari
- Superorder: Acariformes
- Suborder: Prostigmata
- Family: Tarsonemidae
- Genus: Acarapis
- Species: Acarapis woodi
Notes on Taxonomy and Nomenclature
Top of pageAcarapis is a genus of minute mites that are mainly parasitic on insects. A. woodi invades the tracheae of honey bees and is the cause of acarapisosis (OIE, 2012).
Morse and Eickwort (1990) reported that A. woodi may have evolved from an externally-dwelling species of Acarapis, possibly near the end of the nineteenth century in the UK. They suggest that evidence supporting this hypothesis includes: early severe infestations of acarine disease in the UK, followed by a rapid decline; the apparent absence of tracheal mites in honey bees in several European countries until many years after the initial discovery of the mite; the absence of tracheal mites in European honey bees in Australia, New Zealand, and (until 1984) North America; and great variability among North American honey bees regarding susceptibility to A. woodi.
A. woodi is included in a redescription of the genus Acarapis by Delfinado-Baker and Baker (1982).
Distribution
Top of pageThe native range of A. woodi is uncertain. The mites were first reported from dying bee colonies in the Isle of Wight, UK, in 1921 (Woodward and Quinn, 2011), although later evidence suggested that the so-called “Isle of Wight” disease could not be attributed to them (Bailey, 1964, in Denmark et al., 2000).
Widespread bee mortality was attributed to the mites in early twentieth-century Europe. They were first discovered in the USA in Hidalgo County, Texas in early July 1984 and had spread to 17 American states by 1985 (Woodward and Quinn, 2011). The species is now present throughout the continental USA, except Alaska, in both managed and feral honey bee colonies (Woodward and Quinn, 2011).
Acarapisosis has been found in North and South America, Europe and the Middle East (OIE, 2012).
Distribution Table
Top of pageThe distribution in this summary table is based on all the information available. When several references are cited, they may give conflicting information on the status. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.
Last updated: 12 May 2022Continent/Country/Region | Distribution | Last Reported | Origin | First Reported | Invasive | Reference | Notes |
---|---|---|---|---|---|---|---|
Africa |
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Algeria | Absent | Jul-Dec-2019 | |||||
Benin | Absent, No presence record(s) | Jan-Jun-2019 | |||||
Botswana | Absent, No presence record(s) | Jul-Dec-2018 | |||||
Burundi | Absent, No presence record(s) | Jul-Dec-2018 | |||||
Cabo Verde | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Central African Republic | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Congo, Democratic Republic of the | Present | ||||||
Djibouti | Absent | Jul-Dec-2019 | |||||
Egypt | Absent | Jul-Dec-2019 | |||||
Eswatini | Absent | Jul-Dec-2019 | |||||
Ethiopia | Absent, No presence record(s) | Jul-Dec-2018 | |||||
Kenya | Absent | Jul-Dec-2019 | |||||
Lesotho | Absent, No presence record(s) | Jan-Jun-2020 | |||||
Liberia | Absent | Jul-Dec-2018 | |||||
Libya | Absent | Jul-Dec-2019 | |||||
Madagascar | Absent, No presence record(s) | Jan-Jun-2019 | |||||
Malawi | Absent, No presence record(s) | Jul-Dec-2018 | |||||
Mauritius | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Mayotte | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Mozambique | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Niger | Absent | Jul-Dec-2019 | |||||
Réunion | Absent | Jul-Dec-2019 | |||||
Rwanda | Absent, No presence record(s) | Jul-Dec-2018 | |||||
Saint Helena | Absent, No presence record(s) | Jan-Jun-2019 | |||||
Seychelles | Absent, No presence record(s) | Jul-Dec-2018 | |||||
Sierra Leone | Absent | Jan-Jun-2018 | |||||
Somalia | Absent | Jul-Dec-2020 | |||||
South Africa | Absent, No presence record(s) | Jul-Dec-2019 | |||||
South Sudan | Absent | Jan-Jun-2018 | |||||
Sudan | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Tunisia | Absent | Jul-Dec-2019 | |||||
Zambia | Absent, No presence record(s) | Jul-Dec-2018 | |||||
Asia |
|||||||
Armenia | Absent | Jul-Dec-2019 | |||||
Azerbaijan | Absent | Jul-Dec-2019 | |||||
Bahrain | Absent, No presence record(s) | Jul-Dec-2020 | |||||
Bangladesh | Absent, No presence record(s) | Jan-Jun-2020 | |||||
Bhutan | Absent | Jan-Jun-2020 | |||||
Georgia | Present | Jul-Dec-2019 | |||||
India | Present | ||||||
Iran | Present | Jan-Jun-2019 | |||||
Iraq | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Israel | Present | Jul-Dec-2020 | |||||
Japan | Present | Jan-Jun-2020 | |||||
Jordan | Present | Jul-Dec-2018 | |||||
Kazakhstan | Absent | Jul-Dec-2019 | |||||
Kuwait | Absent | Jan-Jun-2019 | |||||
Kyrgyzstan | Absent | Jan-Jun-2019 | |||||
Laos | Absent, No presence record(s) | Jan-Jun-2019 | |||||
Lebanon | Absent | Jul-Dec-2019 | |||||
Malaysia | Absent, No presence record(s) | Jan-Jun-2019 | |||||
Maldives | Absent, No presence record(s) | Jan-Jun-2019 | |||||
Mongolia | Absent, No presence record(s) | Jan-Jun-2019 | |||||
Pakistan | Present | ||||||
Saudi Arabia | Absent, No presence record(s) | Jan-Jun-2020 | |||||
Singapore | Absent, No presence record(s) | Jul-Dec-2019 | |||||
South Korea | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Sri Lanka | Absent, No presence record(s) | Jul-Dec-2018 | |||||
Syria | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Tajikistan | Absent | Jan-Jun-2019 | |||||
Thailand | Absent, No presence record(s) | Jan-Jun-2020 | |||||
Turkmenistan | Absent | Jan-Jun-2019 | |||||
United Arab Emirates | Absent | Jul-Dec-2020 | |||||
Uzbekistan | Absent | Jul-Dec-2019 | |||||
Europe |
|||||||
Albania | Present | ||||||
Andorra | Absent | Jul-Dec-2019 | |||||
Austria | Present | ||||||
Belarus | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Belgium | Present | ||||||
Bosnia and Herzegovina | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Bulgaria | Absent | Jan-Jun-2019 | |||||
Croatia | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Cyprus | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Czechia | Present | ||||||
Czechoslovakia | Present | ||||||
Denmark | Absent | Jul-Dec-2018 | |||||
Estonia | Absent | Jul-Dec-2019 | |||||
Faroe Islands | Absent, No presence record(s) | Jul-Dec-2018 | |||||
Finland | Present | ||||||
France | Present | ||||||
Germany | Present | ||||||
Greece | Absent | Jan-Jun-2018 | |||||
Hungary | Present | ||||||
Iceland | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Ireland | Present | ||||||
Italy | Present | ||||||
Latvia | Absent | Jul-Dec-2020 | |||||
Liechtenstein | Absent | Jul-Dec-2019 | |||||
Lithuania | Absent | Jul-Dec-2019 | |||||
Malta | Absent | Jan-Jun-2019 | |||||
Moldova | Absent | Jan-Jun-2020 | |||||
Montenegro | Absent | Jul-Dec-2019 | |||||
Netherlands | Present | ||||||
North Macedonia | Absent | Jul-Dec-2019 | |||||
Norway | Absent | Jul-Dec-2019 | |||||
Poland | Present | ||||||
Portugal | Present | Jul-Dec-2019 | |||||
Romania | Absent | Jul-Dec-2018 | |||||
Russia | Present | ||||||
San Marino | Absent, No presence record(s) | Jan-Jun-2019 | |||||
Serbia | Absent | Jul-Dec-2019 | |||||
Serbia and Montenegro | Present | ||||||
Slovakia | Absent | Jul-Dec-2020 | |||||
Slovenia | Absent | Jul-Dec-2018 | |||||
Spain | Present | ||||||
-Balearic Islands | Present | ||||||
-Canary Islands | Present | ||||||
Sweden | Absent, No presence record(s) | Jul-Dec-2020 | |||||
Switzerland | Present | ||||||
Ukraine | Absent | Jul-Dec-2020 | |||||
United Kingdom | Present, Localized | ||||||
-England | Present | ||||||
-Scotland | Present | ||||||
North America |
|||||||
Bahamas | Absent, No presence record(s) | Jul-Dec-2018 | |||||
Barbados | Absent, No presence record(s) | Jul-Dec-2020 | |||||
Belize | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Canada | Present | Jul-Dec-2019 | |||||
Cayman Islands | Absent, No presence record(s) | Jan-Jun-2019 | |||||
Costa Rica | Present | ||||||
Cuba | Present | Jan-Jun-2019 | |||||
Curaçao | Absent, No presence record(s) | Jan-Jun-2019 | |||||
Dominican Republic | Absent, No presence record(s) | Jan-Jun-2019 | |||||
Greenland | Absent | Jul-Dec-2018 | |||||
Jamaica | Absent, No presence record(s) | Jul-Dec-2018 | |||||
Martinique | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Mexico | Present | ||||||
Nicaragua | Absent | Jul-Dec-2019 | |||||
Saint Lucia | Absent, No presence record(s) | Jul-Dec-2018 | |||||
Saint Vincent and the Grenadines | Absent | Jan-Jun-2019 | |||||
Trinidad and Tobago | Absent, No presence record(s) | Jan-Jun-2018 | |||||
United States | Present, Widespread | Introduced | 1984 | Invasive | Found throughout continental USA except Alaska | ||
Oceania |
|||||||
Australia | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Federated States of Micronesia | Absent, No presence record(s) | Jan-Jun-2019 | |||||
Fiji | Absent | Jan-Jun-2019 | |||||
French Polynesia | Absent, No presence record(s) | Jan-Jun-2019 | |||||
Kiribati | Absent, No presence record(s) | Jan-Jun-2018 | |||||
Marshall Islands | Absent, No presence record(s) | Jan-Jun-2019 | |||||
New Caledonia | Absent, No presence record(s) | Jul-Dec-2019 | |||||
New Zealand | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Palau | Absent, No presence record(s) | Jul-Dec-2020 | |||||
Samoa | Absent, No presence record(s) | Jan-Jun-2019 | |||||
Timor-Leste | Absent, No presence record(s) | Jul-Dec-2018 | |||||
Tonga | Absent | Jul-Dec-2019 | |||||
Vanuatu | Absent, No presence record(s) | Jan-Jun-2019 | |||||
South America |
|||||||
Argentina | Present | ||||||
Brazil | Present | ||||||
Chile | Present | ||||||
Colombia | Present | ||||||
Ecuador | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Falkland Islands | Absent, No presence record(s) | Jul-Dec-2019 | |||||
French Guiana | Absent, No presence record(s) | Jul-Dec-2019 | |||||
Paraguay | Present | ||||||
Peru | Absent, No presence record(s) | Jan-Jun-2019 | |||||
Suriname | Absent, No presence record(s) | Jan-Jun-2019 | |||||
Uruguay | Present | ||||||
Venezuela | Present |
History of Introduction and Spread
Top of pageHoney bee tracheal mites were first reported from dying bee colonies in the Isle of Wight, UK, in 1921 (Woodward and Quinn, 2011), although later evidence suggested that the “Isle of Wight” disease could not be attributed to the mites (Bailey, 1964, in Denmark et al., 2000). Widespread bee mortality was attributed to the mites in early twentieth-century Europe (Woodward and Quinn, 2011) and they were considered as important pests in the UK in the early 1920s (Bailey, 1985).
The mites were unknown in North America before 1980, when they were detected in Mexico, about 200 miles south of the border with the USA. They were first discovered in the USA in Hidalgo County, Texas in early July 1984. By August that year they were reported from Louisiana and by October they had been found in Florida, Nebraska, New York, North Dakota and South Dakota. Seventeen American states reported their presence by August of the following year, and they eventually spread to the rest of the country. Migratory beekeepers and commercial suppliers of bees facilitated their spread (Woodward and Quinn, 2011).
Once in a hive, the mites can move quickly through a colony via bee-to-bee contact. 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, 2011).
Introductions
Top of pageIntroduced to | Introduced from | Year | Reason | Introduced by | Established in wild through | References | Notes | |
---|---|---|---|---|---|---|---|---|
Natural reproduction | Continuous restocking | |||||||
Denmark | California | 1991 | Animal production (pathway cause); Hitchhiker (pathway cause) | Bitidningen (1991) | ||||
Finland | California | 1991 | Animal production (pathway cause); Hitchhiker (pathway cause) | Yes | Bitidningen (1991); Korpela (1998) | |||
Texas | 1984 | Yes | Woodward and Quinn (2011) |
Risk of Introduction
Top of pageBee-to-bee contact within a colony and movement between hives is said to facilitate the rapid spread of mites (Woodward and Quinn, 2011); however, researchers in Finland reported that the risk of natural transmission from one apiary to another seems low, because non-infested apiaries near an infested experimental apiary ‘remained non-infested for years’ (Korpela, 2002).
Swarming can move mites to other areas. Bees may rob honey from other hives, and can come into contact with mites then. Colonies weakened by mite infestation are more vulnerable to robbing (Woodward and Quinn, 2011).
The rapid spread of the mites observed in the USA was facilitated by migratory beekeepers, who moved bee colonies from southern states northwards for crop pollination. Sales of queens and package bees by commercial bee businesses also assisted in dispersing the mites (Woodward and Quinn, 2011).
The federal Honey Bee Act of 1922 was passed in the USA after the initial discovery of A. woodi in the UK in 1921. This Act prohibited the importation of any honey bee into the USA, although in more recent years it has been relaxed somewhat (Woodward and Quinn, 2011).
The movement of bees, equipment and supplies worldwide has assisted in spreading bee diseases to all areas where bees are raised (OIE, 2012).
Pathogen Characteristics
Top of pageThe mites are invisible to the naked eye; the females are 143-147 microns long and 77-81 microns wide, in comparison to the males, which are 125-136 microns long and 60-70 microns wide. They have white oval bodies with a shiny, smooth cuticle. There are several long fine hairs on the body and legs, and the mouthparts are beak-like and elongated. (Woodward and Quinn, 2011).
Denmark et al. (2000) describe the species as follows:
‘Female: Length 140 to 175 microns, width 75 to 84 microns. Idiosoma ovoid or nearly pyriform; dorsal shield and plates faintly sclerotized, with indistinct punctures. Propodosoma lacking pseudostigmatic sensilla; two pairs of long, attenuate setae, verticals V1 and scapulars Sce. V1 setae shorter than Sce, about 1/4 longer than distance between bases of setae Sce. Ventral apodemes I forming Y-shaped structure with anterior median apodeme (a conspicuous transverse band crossing the thorax in front of the scutellum), not joining transverse apodeme. Apodemes III weakly extending lateral to bases of trochanters III. Apodemes IV extending to bases of trochanters IV. Posterior median apodeme rudimentary, sometimes as faintly formed Y- shaped structure. Leg 1 robust with single hooked claw. Legs II and III each with paired claws. Leg IV stubby, widely spaced; femur-genu and tibiotarsus 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. For a more complete description see Delfinado-Baker and Baker (1984) [1982].
Male: Length 125 to 136 microns, width 60 to 77 microns. Similar to female except for sexual differences. Apodemes III to IV not developed, barely discernible. Posterior median apodeme indistinct, sometimes forming weak Y-shaped structure. Apodemes V present as weakened transverse apodeme barely discernible. Leg I more robust than others. Leg IV short, about 3/4 as long as leg III, without claw; trochanter large, slightly longer than wide, with seta; femur-genu slightly more than two times as long as wide, without flanges, three setae of unequal length; tibiotarsus nearly straight, slightly shorter than femur-genu; apical with slender pointed solenidion and 1 very long seta. Males and nymphs are difficult to separate from other known species.’
Host Animals
Top of pageAnimal name | Context | Life stage | System |
---|---|---|---|
Apis cerana | Domesticated host; Wild host | Other|Adult Female; Other|Adult Male | |
Apis mellifera | Domesticated host; Wild host | Other|Adult Female; Other|Adult Male | |
Apis mellifera scutellata (africanized bee) | Wild host | Other|Adult Female; Other|Adult Male |
Notes on Natural Enemies
Top of pageDonovan and Paul (2005) suggested that restoring appropriate species of pseudoscorpions (i.e. Ellingsenius fulleri and E. indicus) to bee colonies could help save bees from problems such as mites, and therefore potentially A. woodi.
Pathway Causes
Top of pageCause | Notes | Long Distance | Local | References |
---|---|---|---|---|
Crop production | Migratory beekeepers moved bees from southern US states northward to pollinate crops | Yes | Woodward and Quinn (2011) | |
Hitchhiker | Movement of infected bees by beekeepers and commercial suppliers | Yes | Yes | Korpela (1998); Woodward and Quinn (2011) |
Pathway Vectors
Top of pageVector | Notes | Long Distance | Local | References |
---|---|---|---|---|
Host and vector organisms | Yes | Yes | Woodward and Quinn (2011) | |
Land vehicles | Yes | Woodward and Quinn (2011) | ||
Yes | Woodward and Quinn (2011) |
Economic Impact
Top of pageBeekeepers and commercial bee suppliers could suffer an economic impact due to A. woodi. Bee mortality caused by infestations of A. woodi varies; if infestations are high, mortality can be high and entire apiaries have reportedly been lost. In particular, when A. woodi was introduced to the USA, widespread losses of bee colonies and entire apiaries were reported. However, most honey bee colonies in the USA have developed some resistance to or tolerance of mite infestations and acarine disease is not as severe as it was in the 1980s and 1990s; the introduction of the varroa mite (Varroa destructor) in 1987 overshadowed the impact of A. woodi (Woodward and Quinn, 2011).
Honey bees are important to the agricultural and horticultural sectors as pollinators, so any disease causing decline in bee populations will have a significant impact on their role in these industries.
Environmental Impact
Top of pageImpact on Habitats
Jyothi (2004) studied factors affecting pollinators, pollination and seed production of sunflowers in Karnataka, India during 1996-97. The aim of the study was to look at the effects of endosulfan and parasitic mites, including A. woodi, on Apis mellifera, Apis cerana, Apis florea, Apis dorsata and Trigona iridipennis (they also studied fly and butterfly pollinators). As well as reporting a significant decrease in seed yield and pollinator population after insecticide application, they also found a decrease in targets returning with pollen load at mite-infested colonies compared with normal colonies. Obviously factors affecting pollinators will also have an impact on pollination and thus ultimately affect an ecosystem that relies on pollination for development.
Impact on Biodiversity
A. woodi is listed as one of the causes of the decrease of honey bees in the world by Kadowaki (2010).
Social Impact
Top of pageThe effect of acarapisosis outbreaks on honeybee health will also have a significant impact on honey products and thus the livelihood of beekeepers.
Risk and Impact Factors
Top of page- Proved invasive outside its native range
- Highly mobile locally
- Host damage
- Negatively impacts animal health
- Negatively impacts livelihoods
- Threat to/ loss of native species
- Negatively impacts trade/international relations
- Parasitism (incl. parasitoid)
- Highly likely to be transported internationally accidentally
- Difficult to identify/detect as a commodity contaminant
- Difficult to identify/detect in the field
- Difficult/costly to control
References
Top of pageBailey L, 1985. Acarapis woodi: a modern appraisal. Bee World, 66(3):99-104.
Denmark HA; Cromroy HL; Sanford MT, 2000. Featured Creatures: honey bee tracheal mite, Acarapis woodi. Florida: University of Florida. http://entnemdept.ufl.edu/creatures/misc/bees/tracheal_mite.htm
EPPO, 2014. PQR database. Paris, France: European and Mediterranean Plant Protection Organization. http://www.eppo.int/DATABASES/pqr/pqr.htm
Ewing HE, 1922. Studies on the taxonomy and biology of tarsonemid mites, together with a note on the transformations of Acarapis (Tarsonemus) woodi Rennie (Acarina). Canadian Entomologist, 54:104-113.
FERA (Food and Environment Research Agency), 2010. IPM and Acarine. Sand Hutton, UK: Food and Environment Research Agency, 2 pp. https://secure.fera.defra.gov.uk/beebase/downloadDocument.cfm?id=208
Morse RA; Eickwort GC, 1990. Acarapis woodi, a recently evolved species? In: Proceedings of the International Symposium on Recent Research on Bee Pathology, Ghent, Belgium, September 5-7, 1990. 102-107.
OIE (World Organisation for Animal Health), 2008. Manual of Diagnostic Tests and Vaccines for Terrestrial Animals. Paris, France: World Organisation for Animal Health. http://www.oie.int/fileadmin/Home/eng/Health_standards/tahm/A_index.htm
OIE, 2009. World Animal Health Information Database - Version: 1.4. World Animal Health Information Database. Paris, France: World Organisation for Animal Health. http://www.oie.int
OIE, 2012. World Animal Health Information Database. Version 2. World Animal Health Information Database. Paris, France: World Organisation for Animal Health. http://www.oie.int/wahis_2/public/wahid.php/Wahidhome/Home
Woodward SL; Quinn JA, 2011. Encyclopedia of Invasive Species. California, USA: ABC-CLIO, LLC, xlii + 764 pp.
Distribution References
EPPO, 2014. EPPO Global database (available online). Paris, France: EPPO. https://gd.eppo.int/
OIE, 2009. World Animal Health Information Database - Version: 1.4., Paris, France: World Organisation for Animal Health. https://www.oie.int/
Woodward SL, Quinn JA, 2011. Encyclopedia of Invasive Species., California, USA: ABC-CLIO, LLC. xlii + 764 pp.
Organizations
Top of pageWorld: IBRA, International Bee Research Association, Unit 6, Centre Court, Main Avenue, Treforest, RCT, CF37 5YR, UK, www.ibra.org.uk
World: OIE (World Organisation for Animal Health), 12, rue de Prony, 75017 Paris, France, http://www.oie.int/
UK: British Beekeepers’ Association, National Beekeeping Centre, Stoneleigh Park, Stoneleigh, Warwickshire, CV8 2LG, UK, www.britishbeekeepers.com
Contributors
Top of page23/03/2012: Original text by:
Dr. Claire Beverley, CABI, Nosworthy Way, Wallingford, OX10 8BU, UK.
Distribution Maps
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