Agrypon flaveolatum

Agrypon flaveolatum is a species of parasitoid wasp belonging to the family Ichneumonidae described by Johann Ludwig Christian Gravenhorst in 1807. It is a parasite of the larva of the winter moth (Operophtera brumata), and has been used in biological pest control to control this moth, whose larvae feed on foliage and defoliate trees.

Agrypon flaveolatum
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Hymenoptera
Suborder:
Apocrita
Family:
Ichneumonidae
Subfamily:
Anomaloninae
Genus:
Agrypon
Species:
A. flaveolatum
Binomial name
Agrypon flaveolatum
(Gravenhorst, 1807)
Synonyms
  • Agrypon septentrionale (Holmgren, 1857)
  • Agrypon arquatum (Gravenhorst, 1829)
  • Agrypon cribrator (Thunberg, 1822)
  • Agrypon laedator (Thunberg, 1822)

Ecology

Agrypon flaveolatum is native to Europe and Asia where it is a parasitoid of geometrid moths. When the winter moth (Operophtera brumata) was accidentally introduced into Nova Scotia, Canada, in the 1920s, it caused the damage and death of many native trees by defoliation. In 1949 it was declared to be an invasive pest species and six species of parasitic insects were imported from Europe in an attempt to control it. Two of these insects became established in Nova Scotia, the fly Cyzenis albicans as well as A. flaveolatum. Although they were unable to prevent the winter moth from spreading to other areas, they are likely to accompany their host to new locations and may reduce the rate at which it spreads.[1] In 1954, in a study area, each tree was associated with more than a thousand adult winter moths, but by 1963, fewer than one moth per tree was present, a good example of classical biological control.[2]

Another outbreak of winter moths occurred on Vancouver Island in British Columbia, Canada, where it was accompanied by the bruce spanworm (Operophtera bruceata). Here, at high densities the winter moth was controlled by the fly and the parasitoid wasp, but at low densities, a more important factor seems to have been the native beetles that ate the moth pupae.[2] When an outbreak of winter moths occurred in the US state of Massachusetts in the first decade of the 21st century, the fly was the biological control of choice because it was feared that the wasp might parasitise other geometrid moths, of which there were about a dozen rare species in the state.[3]

gollark: As far as I know, the only person who is likely to have actually worked out how my compressor works is Olive, but I assure you that it's moderately weird.
gollark: That and the giant binary blobs.
gollark: LyricLy claims that it was obviously mine because of the formatting and use of numpy. This is wrong and ridiculous. The real reason it was obviously mine is that it does the usual gollark thing of just implementing a weird algorithm and not doing much else.
gollark: They scheduled it for 24 hours, bee.
gollark: Anyway, since LyricLy is done lyricing, it is time for me to ramble incoherently about my entry (#7±5).

References
  1. Huffaker, C. (2013). Biological Control. Springer Science & Business Media. pp. 109, 217. ISBN 978-1-4615-6528-4.
  2. Capinera, John L. (2008). Encyclopedia of Entomology. Springer Science & Business Media. p. 4278. ISBN 978-1-4020-6242-1.
  3. Elkinton, Joseph; Boettner, George; Simisky, Tawny; Swamson, Deborah (3 March 2017). "Winter Moth in Massachusetts: History and Biological Control". UMass Amherst. Retrieved 10 December 2017.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.