Aproceros leucopoda (Hymenoptera: Argidae): An East Asian pest of elms (Ulmus spp.) invading Europe

Stephan M. Blank, Hideho Hara, József Mikulás, G. Csóka, Constantin Ciornei, Raoul Constantineanu, Irinel Constantineanu, Ladislav Roller, Ewald Altenhofer, Tomasz Huflejt, Gábor Vétek

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

An invasive sawfly Aproceros leucopoda Takeuchi, 1939, which originates from East Asia, has colonized elms (Ulmus spp.) in Austria, Hungary, Poland, Romania, Slovakia and the Ukraine, at least since 2003. In Europe, the larvae can completely defoliate native and non-native elm trees and may cause at least partial dieback. Field observations indicate that elms are infested independent of their age and site characteristics. The life cycle of A. leucopoda is described based on material reared in Hokkaido, Japan. Parthenogenetic reproduction, short life cycle of summer generations and the ability to produce four generations per year result in the production of numerous progeny. The evolution of a seasonal dimorphism in head morphology, a simple cocoon that is attached directly to the host plant and a short period spent in the cocoon stage during summer, are putative apomorphies shared by Aproceros Takeuchi, 1939 and Aprosthema Konow, 1899. These traits reduce developmental costs and contribute to the proliferation of A. leucopoda. No specialized parasitoid, that can effectively reduce outbreaks of this species, is known. It is likely that this pest will spread into central and south-western Europe. Further monitoring of A. leucopoda is required to assess future range extensions in Europe, its exacerbating effect on Dutch elm disease and to find a suitable biocontrol agent. Concise keys to imaginal and larval stages are presented that will facilitate the identification of A. leucopoda.

Original languageEnglish
Pages (from-to)357-367
Number of pages11
JournalEuropean Journal of Entomology
Volume107
Issue number3
Publication statusPublished - 2010

Fingerprint

Aproceros leucopoda
Argidae
Ulmus
Hymenoptera
pests
Aproceros
cocoons
life cycle (organisms)
Japan
sawflies
Ukraine
summer
dieback
Romania
Western European region
Slovakia
dimorphism
East Asia
Austria
Hungary

Keywords

  • Aproceros leucopoda
  • Argidae
  • Bionomy
  • Dispersal
  • Dutch elm disease
  • Europe
  • Identification
  • Invasive species
  • Pest species
  • Sawfly
  • Ulmus

ASJC Scopus subject areas

  • Insect Science

Cite this

Blank, S. M., Hara, H., Mikulás, J., Csóka, G., Ciornei, C., Constantineanu, R., ... Vétek, G. (2010). Aproceros leucopoda (Hymenoptera: Argidae): An East Asian pest of elms (Ulmus spp.) invading Europe. European Journal of Entomology, 107(3), 357-367.

Aproceros leucopoda (Hymenoptera : Argidae): An East Asian pest of elms (Ulmus spp.) invading Europe. / Blank, Stephan M.; Hara, Hideho; Mikulás, József; Csóka, G.; Ciornei, Constantin; Constantineanu, Raoul; Constantineanu, Irinel; Roller, Ladislav; Altenhofer, Ewald; Huflejt, Tomasz; Vétek, Gábor.

In: European Journal of Entomology, Vol. 107, No. 3, 2010, p. 357-367.

Research output: Contribution to journalArticle

Blank, SM, Hara, H, Mikulás, J, Csóka, G, Ciornei, C, Constantineanu, R, Constantineanu, I, Roller, L, Altenhofer, E, Huflejt, T & Vétek, G 2010, 'Aproceros leucopoda (Hymenoptera: Argidae): An East Asian pest of elms (Ulmus spp.) invading Europe', European Journal of Entomology, vol. 107, no. 3, pp. 357-367.
Blank, Stephan M. ; Hara, Hideho ; Mikulás, József ; Csóka, G. ; Ciornei, Constantin ; Constantineanu, Raoul ; Constantineanu, Irinel ; Roller, Ladislav ; Altenhofer, Ewald ; Huflejt, Tomasz ; Vétek, Gábor. / Aproceros leucopoda (Hymenoptera : Argidae): An East Asian pest of elms (Ulmus spp.) invading Europe. In: European Journal of Entomology. 2010 ; Vol. 107, No. 3. pp. 357-367.
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abstract = "An invasive sawfly Aproceros leucopoda Takeuchi, 1939, which originates from East Asia, has colonized elms (Ulmus spp.) in Austria, Hungary, Poland, Romania, Slovakia and the Ukraine, at least since 2003. In Europe, the larvae can completely defoliate native and non-native elm trees and may cause at least partial dieback. Field observations indicate that elms are infested independent of their age and site characteristics. The life cycle of A. leucopoda is described based on material reared in Hokkaido, Japan. Parthenogenetic reproduction, short life cycle of summer generations and the ability to produce four generations per year result in the production of numerous progeny. The evolution of a seasonal dimorphism in head morphology, a simple cocoon that is attached directly to the host plant and a short period spent in the cocoon stage during summer, are putative apomorphies shared by Aproceros Takeuchi, 1939 and Aprosthema Konow, 1899. These traits reduce developmental costs and contribute to the proliferation of A. leucopoda. No specialized parasitoid, that can effectively reduce outbreaks of this species, is known. It is likely that this pest will spread into central and south-western Europe. Further monitoring of A. leucopoda is required to assess future range extensions in Europe, its exacerbating effect on Dutch elm disease and to find a suitable biocontrol agent. Concise keys to imaginal and larval stages are presented that will facilitate the identification of A. leucopoda.",
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