Asian long-horned beetle

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Asian Long-horned Beetle
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Cerambycidae
Subfamily: Lamiinae
Tribe: Monochamini
Genus: Anoplophora
Species: A. glabripennis
Binomial name
Anoplophora glabripennis
(Motschulsky, 1853)
Synonyms

Anthonomus aeneotinctus Champion, 1903
Temagami, Ontario, Canada
Closeup of Anoplophora glabripennis

The Asian Longhorned Beetle (Anoplophora glabripennis) (ALB) is native to China and other areas of the Far East, where it causes widespread mortality of poplar, willow, elm and maple trees.

The beetle, known as the Starry Sky or Sky Beetle in China, is a large black insect, with white spots dashed irregularly on its elytra (wing covers). Adults are typically 1–1.5 inches (2.5–3.8 cm) long. The distinctive long antennae that give the beetle its common name are as long as the body in females and almost twice the body length in males.

The ALB is considered an invasive species in North America, where it is a serious threat to many species of deciduous hardwood trees. During the larval stage, the ALB bores deep into a tree's heartwood, where it feeds on the tree's nutrients. The tunneling damages and eventually kills the tree. Tree species considered ALB host species include all species of maple (Norway, sugar, silver, and red maple) as well as Horse chestnut, Poplar, Willow, Birch, London plane, Mountain ash, Mimosa (silk tree), Elm and Hackberry.[1]

While the Asian long~horned beetle can fly for distances of 400 yards (400 m) or more in search of a host tree, they tend to lay eggs in the same tree from which they emerged as adults, migrating only when population density becomes too high. During the summer months, a mated adult ALB female chews 35 to 90 individual depressions into the host tree's bark and lays an egg in each of the pits. The eggs hatch in 10-15 days and the white, caterpillar-like larvae tunnel into the tree's phloem and cambium layers beneath the tree bark. After several weeks, the larvae tunnel deeper in the tree's heartwood where they mature into pupae. The pupae hatch into adults inside the tree over the winter months. The full-grown adult ALBs chew their way out of the tree the next spring and summer, as early as May and as late as October or November, depending on climate. In the process, they leave perfectly round exit holes that are approximately 1 cm (3/8") in diameter.

Signs of Asian Long-horned Beetle infestation include: the perfectly round, 2 cm exit holes; frass, a sawdust-like material made up of tree shavings and insect waste; and oozing sap. Dead and dying tree limbs or branches and yellowing leaves when there has been no drought also signal ALB infestation. United States Department of Agriculture (USDA) research indicates this beetle can survive and reproduce in most sections of the country where suitable host trees exist.

Contents

[edit] Infestations in North America

Adult ALBs can be seen from late spring to fall, depending on the climate. The ALB was first discovered in the United States in 1996 in the Greenpoint section of Brooklyn. Shortly after, another infestation was detected in Amityville on Long Island. Since then infestations have been found in the Islip area of Long Island in Queens and in Manhattan. In fact, several infested trees were removed around Central Park. The ALB was discovered in Chicago in 1998. An ALB infestation was detected in Hudson County, New Jersey in 2002 and in the Central New Jersey Middlesex and Union Counties in 2004. In 2008 a sizeable infestation was discovered in Worcester, Massachusetts.[2] Ongoing inspection of host trees within a 62 sq mi (160 km2) quarantine area[3] has revealed that 2500 trees are infested;[4] there is some evidence that the infestation may date back as far as 1997.[5]

Beetles have been discovered in Toronto, Canada.

Alert workers have uncovered and reported ALBs in warehouses in CA, FL, IL, IN, MI, NC, NJ, NY, OH, PA, SC, TX, WA, WI, and in British Columbia and Ontario in Canada.

The beetle has also invaded Britain, Austria and Germany.

[edit] Background

The ALB was believed to have arrived in New York City in the 1980s in wood packing material. According to Victor Mastro, the Director of Animal and Plant Health Inspection Service Laboratory on Cape Cod, Massachusetts, the center of the infection zone was a warehouse which imported plumbing supplies from China (Smith, 2003). The infestations in Hudson County, New Jersey and on Long Island are believed to have spread from the Brooklyn point of entry. The infestations in Chicago and central New Jersey are believed to have come from a separate point of entry.

The Greenpoint infestation was first reported by Ingram Carter of Greenpoint on a Saturday in August 1996 and identified by Cornell University entomologist Richard Hoebeke on August 19th. The Amityville infestation was brought, inadvertently, from Brooklyn by the Mike Ryan Tree Services, a tree pruning company, which performs work for the NYNEX telephone company.[6]

[edit] Timeline of discoveries

The Canadian Food Inspection Agency is spearheading efforts to fight the ALB infestation in the Greater Toronto Area.

[edit] Eradication efforts

Over 6,000 infested trees have been cut down and destroyed to eradicate ALB from New York and over 1,550 trees in Chicago and almost 23,000 trees in New Jersey,[14] Infested trees continue to be discovered. 18,000 trees have been removed in Worcester, Ma. The December 12, 2008 ice storm likely resulted in significant moving of infested downed limbs because of frantic homeowners clearing debris within the infestation following the devastating ice storm. This has complicated the eradication effort. A Worcester exterminator has had a beetle in his collection since 1997, and USDA APHIS PPQ has confirmed his finding, meaning the beetle has been in Worcester for at least 11 years, giving it a very long time to move about, especially since vehicles were often parked under infested trees, giving the beetles an opportunity to drop onto cars and be transported elsewhere.

The US Federal government is trying to eradicate this species primarily for two reasons:

  • If it becomes established it could significantly impact natural forests and urban environment, with an estimated death toll of 1.2 billion trees if it spread nationwide.[15]
  • Due to the current limited infestation size, it is believed that eradication efforts can be successful.

The steps that have been taken to eliminate the ALB include:

  • Quarantines. Quarantines have been established around infested areas to prevent accidental spread of ALB by people.
  • Infested trees cut, chipped and burned. All infested trees are being removed, chipped in place, and the chips are being burned. The stumps of infested trees are ground to below the soil level. All tree removal is done by certified tree care personnel to ensure that the process is completed properly.
  • Insecticide treatments. Research is underway to determine the effectiveness of certain insecticides such as imidacloprid against ALB. Insecticidal treatments have begun in New York and Chicago in hopes of preventing and containing infestations. Chicago's program of imidacloprid treatments for healthy trees of potential host species within a one-eighth to one-half mile (200–800 m) radius of infested trees successfully removed Illinois from quarantine in August 2006. As of December 2006, New Jersey's policy was to cut down all healthy trees of the potential host species within a one-eighth to one-quarter mile (200–400 m) radius of infested trees.
  • Extensive surveys. All host trees on public and private property located within an established distance from an infested area are surveyed by trained personnel. Infested areas are re-surveyed at least once per year for 3-5 years after the last beetle or infested tree is found.

US customs regulations were changed on September 18, 1998 (effective December 17, 1998) to require wooden packing materials from China be chemically treated or dried via kiln to prevent further infestations of the Asian long-horned beetle from arriving. Pest inspection, new rules, and public awareness are the key steps to prevention of the spread of the Asian longhorned beetle.

Trees that are being planted to replace host trees include: Serviceberry or Shadbush, Ironwood, Southern catalpa, Turkish filbert, Ginkgo, Honey locust, Kentucky coffeetree, Tuliptree, Dawn redwood, White oak, Swamp white oak, Bur oak, English oak, Japanese lilac, Bald cypress, Basswood, and Little-leaf Linden.

[edit] Notes

  1. ^ http://www.massnrc.org/pests/pestFAQsheets/asianlonghorned.html
  2. ^ http://www.telegram.com/article/20080824/NEWS/808240422
  3. ^ http://www.ci.worcester.ma.us/cmo/pdf/ALBRegulatedArea.pdf
  4. ^ http://www.telegram.com/article/20081029/NEWS/810290622
  5. ^ http://www.telegram.com/article/20080830/NEWS/808300336/-1/BEETLES
  6. ^ APHIS Web - PPQ - Asian Longhorned Beetle - New Pest Advisory Group Report
  7. ^ http://www.nycgovparks.org/sub_your_park/trees_greenstreets/beetle_alert/images/infestation_050427_CPelm_new.pdf
  8. ^ Press Release
  9. ^ September 18, 2003 Asian Longhorned Beetle discovered in York Region
  10. ^ August 7, 2008 Pest alert: Asian Longhorned Beetle detected in Massachusetts
  11. ^ August 7, 2008 Tree-devouring Asian beetle found in Worcester
  12. ^ August 8, 2008 Browning in Greendale
  13. ^ Massachusetts Introduced Pests Outreach Project
  14. ^ Newspaper Archive (dead link as of at least March 16, 2009)
  15. ^ Mance III, Dave (Winter 2008). "Knots & Bolts: Notes from the Quarantine Zone". Northern Woodlands (Center for Northern Woodlands Education) 15 (4): 18. http://northernwoodlands.org/knots_and_bolts/notes_from_the_quarantine_zone/. Retrieved 29 July 2009. 

[edit] References

  • "Wanted: The Asian Longhorned Beetle" USDA APHIS Publication, May 2008, Suzanne Bond
  • Antipin, Judy and Dilley, Thomas. "Chicago vs. Asian Longhorn Beetle: A Portrait of Success"
  • http://purl.access.gpo.gov/GPO/LPS6632
  • Smith, Jennifer. "Monsters in Miniature: An Exotic Invader Threatens U.S. Hardwoods". April 13, 2003 Newsday.com.
  • Woodsen, Mary. "Cities Under Siege". American Forests Summer 2000: 7.

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