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

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 south-eastern region of Asia, consisting of the regions that are situated south of mainlan ...

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. ...

hatches, it chews into the tree, forming a tunnel that is then used as a place for

pupation A pupa ( la, pupa, "doll"; plural: ''pupae'') is the life stage of some insects undergoing transformation between immature and mature stages. Insects that go through a pupal stage are holometabolous: they go through four distinct stages in thei ...

. 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 trees and shrubs in the rue family, Rutaceae. Plants in the genus produce citrus fruits, including important crops such as oranges, lemons, grapefruits, pomelos, and limes. The genus ''Citrus'' is native to ...

'',

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 trees are cultivated worldwide and are the most widely grown species in the genus ''Malus''. The tree originated in Central Asia, where its wild ancestor, ' ...

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 ''Hibiscus'' is a genus of flowering plants in the mallow family, Malvaceae. The genus is quite large, comprising several hundred species that are native to warm temperate, subtropical and tropical regions throughout the world. Member species ...

'',

sycamore Sycamore is a name which has been applied to several types of trees, but with somewhat similar leaf forms. The name derives from the ancient Greek ' (''sūkomoros'') meaning "fig-mulberry". Species of trees known as sycamore: * ''Acer pseudoplata ...

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 so ...

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 po ...

, mulberry,

chinaberry ''Melia azedarach'', commonly known as the chinaberry tree, pride of India, bead-tree, Cape lilac, syringa berrytree, Persian lilac, Indian lilac, or white cedar, is a species of deciduous tree in the mahogany family, Meliaceae, that is native ...

, poplar, ''

Litchi Lychee (US: ; UK: ; ''Litchi chinensis''; ) is a monotypic taxon and the sole member in the genus ''Litchi'' in the soapberry family, '' Sapindaceae''. It is a tropical tree native to Southeast and Southwest China (the Guangdong, Fujian, ...

'',

kumquat Kumquats (; zh, 金桔), or cumquats in Australian English, are a group of small fruit-bearing trees in the flowering plant family Rutaceae. Their taxonomy is disputed. They were previously classified as forming the now-historical genus ''For ...

, Japanese red cedar, 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 extendi ...

''.

In America

The citrus long-horned beetle poses an unprecedented threat to the environment in North America 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 commercially important species of euryhaline ray-finned fish from the family Salmonidae, which are native to tributaries of the North Atlantic (genus ''Salmo'') and North Pacific (genus '' Oncorhy ...

, and wildlife habitats. 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 primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...

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 tree Bonsai ( ja, 盆栽, , tray planting, ) is the Japanese art of growing and training miniature trees in pots, developed from the traditional Chinese art form of '' penjing''. Unlike ''penjing'', which utilizes traditional techniques to produc ...

s 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 origi ...

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 Grea ...

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 The United States National Agricultural Library (NAL) is one of the world's largest agricultural research libraries, and serves as a national library of the United States and as the library of the United States Department of Agriculture. Located ...

. 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