The seasonal abundance of the newly established parasitoid complex of the Eucalyptus tortoise beetle (<i>Paropsis charybdis</i>)

Authors

  • D.C. Jones
  • T.M. Withers

DOI:

https://doi.org/10.30843/nzpp.2003.56.6031

Abstract

Enoggera nassaui has been the key biological control agent of the eucalyptus tortoise beetle Paropsis charybdis since 1987 In 2001 a second egg parasitoid Neopolycystus insectifurax as well as an obligate hyperparasitoid of E nassaui Baeoanusia albifunicle were detected in New Zealand Monitoring of Eucalyptus nitens plantations in the central North Island revealed that 50 of P charybdis eggs in half the sites were parasitised by E nassaui in early summer However later in the season this was followed by a reduction to 10 parasitism by E nassaui the remaining 40 of parasitised eggs being hyperparasitised by B albifunicle Neopolycystus insectifurax parasitised an additional 35100 of eggs in late summer This indicates that while B albifunicle has the potential to severely reduce the effectiveness of E nassaui the new agent N insectifurax is a promising alternative

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Published

2003-08-01

How to Cite

Jones, D., & Withers, T. (2003). The seasonal abundance of the newly established parasitoid complex of the Eucalyptus tortoise beetle (<i>Paropsis charybdis</i>). New Zealand Plant Protection, 56, 51-55. https://doi.org/10.30843/nzpp.2003.56.6031

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