The citrus long-horned beetle (''Anoplophora chinensis'', also appearing in many sources as ''Anoplophora malasiaca'') is a

long-horned beetle The longhorn beetles (Cerambycidae), also known as long-horned or longicorns, are a large family of beetles, with over 35,000 species described. Most species are characterized by extremely long antennae, which are often as long as or longer than ...

native to

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

Korea Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or near the 38th parallel, with North Korea (Democratic People's Republic of Korea) comprising its northern half and South Korea (Republic o ...

, and

Southeast Asia Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical United Nations geoscheme for Asia#South-eastern Asia, south-eastern region of Asia, consistin ...

where it is considered a serious pest. Several countries in Europe had been infested with this insect in the past, including Italy, Switzerland, Turkey, France, Germany, and Croatia. Each female citrus long-horned beetle can lay up to 200 eggs after mating; each egg is individually deposited in tree bark. After the beetle

larva A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. The ...

hatches, it chews into the tree, forming a tunnel that is then used as a place for pupation. From egg-laying to pupation and adult emergence can take one to two years. Infestations by the beetle can kill many different types of hardwood trees including ''

Citrus ''Citrus'' is a genus of flowering plant, flowering trees and shrubs in the rue family, Rutaceae. Plants in the genus produce citrus fruits, including important crops such as Orange (fruit), oranges, Lemon, lemons, grapefruits, pomelos, and lim ...

'',

pecan The pecan (''Carya illinoinensis'') is a species of hickory native to the southern United States and northern Mexico in the region of the Mississippi River. The tree is cultivated for its seed in the southern United States, primarily in Georgia, ...

apple An apple is an edible fruit produced by an apple tree (''Malus domestica''). Apple fruit tree, trees are agriculture, cultivated worldwide and are the most widely grown species in the genus ''Malus''. The tree originated in Central Asia, wh ...

Australian pine ''Casuarina'' is a genus of 17 tree species in the family Casuarinaceae, native to Australia, the Indian subcontinent, southeast Asia, islands of the western Pacific Ocean, and eastern Africa. It was once treated as the sole genus in the fam ...

, '' Hibiscus'', sycamore,

willow Willows, also called sallows and osiers, from the genus ''Salix'', comprise around 400 speciesMabberley, D.J. 1997. The Plant Book, Cambridge University Press #2: Cambridge. of typically deciduous trees and shrubs, found primarily on moist s ...

pear Pears are fruits produced and consumed around the world, growing on a tree and harvested in the Northern Hemisphere in late summer into October. The pear tree and shrub are a species of genus ''Pyrus'' , in the family Rosaceae, bearing the p ...

mulberry ''Morus'', a genus of flowering plants in the family Moraceae, consists of diverse species of deciduous trees commonly known as mulberries, growing wild and under cultivation in many temperate world regions. Generally, the genus has 64 identif ...

, chinaberry, poplar, '' Litchi'', kumquat,

Japanese red cedar ''Cryptomeria'' (literally "hidden parts") is a monotypic genus of conifer in the cypress family Cupressaceae, formerly belonging to the family Taxodiaceae. It includes only one species, ''Cryptomeria japonica'' (syn. ''Cupressus japonica'' L. ...

, oak, and ''

Ficus ''Ficus'' ( or ) is a genus of about 850 species of woody trees, shrubs, vines, epiphytes and hemiepiphytes in the family Moraceae. Collectively known as fig trees or figs, they are native throughout the tropics with a few species extending in ...

''.

In America

The citrus long-horned beetle poses an unprecedented threat to the environment in

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

because it attacks healthy trees and has no natural enemies. Not only are greenbelts, urban landscapes and backyard trees threatened, but also orchards, forests, endangered

salmon Salmon () is the common name for several list of commercially important fish species, commercially important species of euryhaline ray-finned fish from the family (biology), family Salmonidae, which are native to tributary, tributaries of the ...

, and wildlife

habitats In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

. The citrus long-horned beetle was first discovered in the

U.S. The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...

in April 1999, when a single beetle was found in a nursery greenhouse in

Athens, Georgia Athens, officially Athens–Clarke County, is a consolidated city-county and college town in the U.S. state of Georgia. Athens lies about northeast of downtown Atlanta, and is a satellite city of the capital. The University of Georgia, the sta ...

on certain bonsai trees imported from China. More seriously, the beetle was later discovered on 9 August 2001, at a

Tukwila, Washington Tukwila ( ) is a suburban city in King County, Washington, United States, located immediately to the south of Seattle. The population was 21,798 at the 2020 census. Tukwila is a community of communities, with residents of many diverse origin ...

nursery near

Seattle Seattle ( ) is a seaport city on the West Coast of the United States. It is the seat of King County, Washington. With a 2020 population of 737,015, it is the largest city in both the state of Washington and the Pacific Northwest regio ...

in a shipment from Korea of 369 bonsai maple trees. Three of the beetles were captured at the nursery, including a mated female ready to lay eggs, but when the bonsai trees were dissected, eight larvae exit tunnels were found, indicating that five more might have escaped into the surrounding community. Those five could lead to thousands of others because females lay 200 eggs each. Because this beetle may have other outlying infestations that are yet to be discovered, it is recommended not to move firewood, even in areas with no known infestations.

UK

The beetle was found in several sightings in

Essex Essex () is a county in the East of England. One of the home counties, it borders Suffolk and Cambridgeshire to the north, the North Sea to the east, Hertfordshire to the west, Kent across the estuary of the River Thames to the south, and G ...

in 2008.

References

External links

EPPO
pdf
DEFRA/CSL and Forestry Commission UK PublicationCOMMISSION DECISION
on emergency measures to prevent the introduction into and the spread within the Community of ''Anoplophora chinensis'' (Forster) pdf
Species Profile- Citrus Longhorned Beetle (''Anoplophora chinensis'')
National Invasive Species Information Center, United States National Agricultural Library. Lists general information and resources for Citrus Longhorned Beetle. *Neue Westfälische from 3 July 2008
Defra News release 14 August 2008
{{Taxonbar, from=Q206551 Lamiini Beetles of Asia Agricultural pest insects Insect pests of temperate forests Beetles described in 1771

In America

UK

See also

References

External links