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International Journal of Tropical Insect Science

, Volume 34, Issue 3, pp 179–189 | Cite as

Biology, damage and parasitoids of the Eucalyptus gall wasp, Leptocybe invasa (Hymenoptera: Eulophidae), infesting Eucalyptus camaldulensis (Myrtaceae) in Maragamuwa plantation, Sri Lanka

  • Udagedara Kanchana Sandya Kumari Udagedara
  • Warusapperuma Arachchilage Inoka
  • Pushpakumari KarunaratneEmail author
Research Paper

Abstract

Leptocybe invasa Fisher & La Salle was first recorded several years ago in Sri Lanka in the Eucalyptus camaldulensis Dehnh. plantation in Maragamuwa. Recent observations have revealed a decrease in gall infestation, and the present study was conducted to investigate the biology of L. invasa, its damage to E. camaldulensis and the presence of any natural enemies. Life-cycle duration, developmental stages and activity patterns were investigated. The abundance of gall wasps was monitored using sticky traps. Damage caused to different stages of coppices was also assessed. The damage index was calculated from the percentage of leaves affected in each coppice. Insects were reared from the galled coppices, brought to the laboratory, identified and counted. The life-cycle duration of L. invasa was 132 days on average. The damage index was low throughout the study period. Leptocybe invasa attacked the coppices of E. camaldulensis when they turned green in colour; damage increased as the coppices developed until maturity. Four species of parasitoid wasps were reared from the leaf and shoot galls. Megastigmus sp. was the most abundant parasitoid; the mean percentage of parasitization was 67.00 ± 8.00. Natural enemies of L. invasa might have contributed to the decrease in gall infestation observed recently in the coppices of E. camaldulensis in the study site.

Key words

biology parasitoids Leptocybe invasa Megastigmus sp. Eucalyptus camaldulensis, Sri Lanka 

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References

  1. Bandaratillake H. M. (1993) Eucalyptus plantations in Sri Lanka: environmental, social, economic and policy issues. In Reports Submitted to the Regional Expert Consultation on Eucalyptus, Vol. II. FAO Regional Office for Asia and Pacific (RAP) Bangkok, Thailand. Available at: https://doi.org/www.fao.org/documents/show_cdr.asp?url_file=/docrep/005/ac772e/ac77e00.HTMGoogle Scholar
  2. Coley P. D. and Barone J. A. (1996) Herbivory and plant defenses in tropical forests. Annual Review of Ecology and Systematics 27, 305–335.CrossRefGoogle Scholar
  3. Doganlar O. and Hassan E. (2010) Review of Australian species of Megastigmus (Hymenoptera: Torymidae) associated with Eucalyptus, with descriptions of new species. Australian Journal of Basic and Applied Sciences 4, 5059–5120.Google Scholar
  4. FAO (2007) Forest Health and Biosecurity Working Paper - 020 Overview of Forest Pests - Kenya. Working paper FBS/20E. Forestry Department, FAO, Rome, Italy.Google Scholar
  5. Gupta A. and Poorani J. (2009) Taxonomic studies on a collection of Chalcidoidea (Hymenoptera) from India, with new distribution records. Journal of Threatened Taxa 1, 300–304.CrossRefGoogle Scholar
  6. Karunaratne W. A. I. P., Edirisinghe J. P. and Ranawana K. B. (2010) Rapid survey of damage due to gall wasp infestation in a coppiced Eucalyptus camaldulensis plantation in Maragamuwa, Naula in the Matale district of Sri Lanka. Ceylon Journal of Science (Biological Science) 39, 157–161.Google Scholar
  7. Kavitha Kumari N. (2009) Bioecology and management of Eucalyptus gall wasp, Leptocybe invasa Fisher and La Salle (Eulophidae: Hymenoptera). MSc thesis, University of Agricultural Sciences, Dharwad, India.Google Scholar
  8. Kavitha Kumari N., Kulkarni H., Vastrad A. S. and Goud K. V. (2010) Biology of Eucalyptus gall wasp, Leptocybe invasa Fisher and La Salle (Hymenoptera: Eulophidae). Karnataka Journal of Agricultural Science 23, 211–212.Google Scholar
  9. Kim I. K., Mendel Z., Protasov A., Blumberg D. and La Salle J. (2008) Taxonomy, biology and efficacy of two Australian parasitoids of the Eucalyptus gall wasp, Leptocybe invasa Fisher & La Salle (Hymenoptera: Eulophidae: Tetrastichinae). Zootaxa 1910, 1–20.Google Scholar
  10. Kulkarni H. (2010) Distribution, seasonal incidence and management of Eucalyptus gall wasp, Leptocybe invasa Fisher & La Salle (Hymenoptera: Eulophidae) with special reference to native parasitoids. MSc thesis, University of Agricultural Sciences, Dharwad, India.Google Scholar
  11. Kulkarni H., Kumari N. K., Vastrad A. S. and Basavangoud K. (2010) Release and recovery of parasitoids in Eucalyptus against gall wasp, Leptocybe invasa (Hymenoptera: Eulophidae) under green house. Karnataka Journal of Agricultural Science 23, 91–92.Google Scholar
  12. La Salle J. (2005) Biology of gall inducers and evolution of gall induction in Chalcidoidea (Hymenoptera: Eulophidae, Eurytomidae, Pteromalidae, Tanaostigmatidae, Torymidae), pp. 507–537. In Biology, Ecology and Evolution of Gall-Inducing Arthropods (edited by A. Raman, C. W. Schaefer and T. M. Withers). Science Publishers, Enfield, New Hampshire, USA.Google Scholar
  13. Mendel Z., Protasov A., Fisher N. and La Salle J. (2004) Taxonomy and biology of Leptocybe invasa gen. & sp. n. (Hymenoptera: Eulophidae), an invasive gall inducer on Eucalyptus. Australian Journal of Entomology 43, 101–113.CrossRefGoogle Scholar
  14. Protasov A., Doganlar M., La Salle J. and Mendel Z. (2008) Occurrence of two local Megastigmus species parasitic on the Eucalyptus gall wasp Leptocybe invasa in Israel and Turkey. Phytoparasitica 36, 449–459.CrossRefGoogle Scholar
  15. Reed T., Ranawana K. and Nanayakkara A. (2009) Methods tested and their costs to control re-growth of coppiced Eucalyptus camaldulensis in harvested plantations in Naula, Matale District, Sri Lanka. Ceylon Journal of Science (Biological Science) 38, 75–83.CrossRefGoogle Scholar
  16. Thomas A. and Coley P. D. (1992) Delayed greening in tropical leaves: an antiherbivore defense? Biotropica 24, 256–262.CrossRefGoogle Scholar
  17. Thu P. Q., Dell B. and Burgess T. I. (2009) Susceptibility of 18 eucalypt species to the gall wasp Leptocybe invasa in the nursery and young plantations in Vietnam. Science Asia 35, 113–117.CrossRefGoogle Scholar
  18. Viggiani G., Loudannia S. and Bernardo V. (2000) The increase of insect pests of Eucalyptus. Informatore Agrario 58, 609–634.Google Scholar

Copyright information

© ICIPE 2014

Authors and Affiliations

  • Udagedara Kanchana Sandya Kumari Udagedara
    • 1
  • Warusapperuma Arachchilage Inoka
    • 1
  • Pushpakumari Karunaratne
    • 1
    Email author
  1. 1.Department of Zoology, Faculty of ScienceUniversity of PeradeniyaPeradeniyaSri Lanka

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