Introduction and establishment of <i>Microplitis croceipes</i> a larval parasitoid of heliothis in North Island pine forests

Authors

  • T.J.B. Herman
  • M.M Davidson

DOI:

https://doi.org/10.30843/nzpp.2000.53.3624

Abstract

Heliothis (Helicoverpa armigera) is a periodic pest of young pine trees (Pinus radiata) In response to a recent outbreak of this pest Microplitis croceipes a parasitoid of heliothis larvae was introduced into forests of the North Island volcanic plateau to augment biological control of heliothis A total of 13600 M croceipes pupae were released at monthly intervals over three seasons (199598) Successful overwintering of M croceipes populations confirmed establishment in the forests Mean monthly parasitism reached 107 in the third season Surveys at points radiating out from the release sites indicated that M croceipes was spreading at approximately 1 km per year

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Published

2000-08-01

How to Cite

Herman, T., & Davidson, M. (2000). Introduction and establishment of <i>Microplitis croceipes</i> a larval parasitoid of heliothis in North Island pine forests. New Zealand Plant Protection, 53, 328-333. https://doi.org/10.30843/nzpp.2000.53.3624

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Section

Papers