BioControl

, Volume 57, Issue 1, pp 21–35

Molecular and morphological diagnoses of five species of Trichogramma: biological control agents of Chrysodeixis chalcites (Lepidoptera: Noctuidae) and Tuta absoluta (Lepidoptera: Gelechiidae) in the Canary Islands

  • Andrew Polaszek
  • Paul F. Rugman-Jones
  • Richard Stouthamer
  • Estrella Hernandez-Suarez
  • Tomás Cabello
  • Modesto del Pino Pérez
Article

DOI: 10.1007/s10526-011-9361-y

Cite this article as:
Polaszek, A., Rugman-Jones, P.F., Stouthamer, R. et al. BioControl (2012) 57: 21. doi:10.1007/s10526-011-9361-y

Abstract

Prospecting for potential natural enemies of the invasive lepidopteran tomato pest Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) and the banana pest Chrysodeixis chalcites (Esper) (Lepidoptera: Noctuidae) on the Canary Islands archipelago, where no Trichogramma species were previously recorded, has led to the discovery of five distinct species. T. achaeae Nagaraja & Nagarkatti, T. bourarachae Pintureau & Babault, T. euproctidis (Girault) and T. evanescens Westwood are relatively widespread species. The fifth is close to T. brassicae Bezdenko, but differs sufficiently in the sequence of the ITS2 region of ribosomal RNA to warrant further investigation as a species probably new to science. Each species is treated in detail in order to facilitate identification in future using molecular and/or morphological characters, or a combination of both. All species are newly recorded for the Canary Islands, and the distribution of each within the islands and elsewhere is provided. Known host records are given within the Canary Islands and elsewhere. The most common species found, T. achaeae, is already being used in biological control programmes against T. absoluta in mainland Spain and field trials are ongoing to evaluate its effectiveness as a biological control agent of C. chalcites in banana crops.

Keywords

Trichogramma achaeae T. bourarachae T. evanescens T. euproctidis Tuta absoluta Chrysodeixis chalcites Musa acuminata Solanum lycopersicum Egg parasitoid Ooparasitoid Invasive pest Canary Islands 

Copyright information

© International Organization for Biological Control (IOBC) 2011

Authors and Affiliations

  • Andrew Polaszek
    • 1
  • Paul F. Rugman-Jones
    • 2
  • Richard Stouthamer
    • 2
  • Estrella Hernandez-Suarez
    • 3
  • Tomás Cabello
    • 4
  • Modesto del Pino Pérez
    • 3
  1. 1.Department of EntomologyNatural History MuseumLondonUK
  2. 2.EntomologyUniversity of CaliforniaRiversideUSA
  3. 3.Department of Protección VegetalInstituto Canario de Investigaciones AgrariasLa Laguna, Tenerife, Islas CanariasSpain
  4. 4.Centro de Investigación en Biotecnología AgroalimentariaUniversidad de AlmeríaAlmeríaSpain

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