NZPPS   ·  Journal home   ·   Past issues  ·  This volume   ·   Previous abstract   ·   Next abstract



New Zealand Plant Protection 64 (2011): 44-48

Hybridisation between populations of Enoggera nassaui in New Zealand

T.M. Withers, L.D. Phillips, T.E.M. Bates and R.J. Ganley

ABSTRACT

The eucalyptus tortoise beetle (Paropsis charybdis) egg parasitoid, Enoggera nassaui, is distributed throughout New Zealand. The original population released in New Zealand was from Western Australia and was later augmented with two strains from Tasmania (Florentine Valley and Evandale). Analysis of E. nassaui in 2001 showed a predominance of the Western Australian strain, with only one Florentine Valley individual being detected. In the present study, collections of E. nassaui specimens from P. charybdis eggs made during spring 2010 were subjected to cytochrome oxidase I (COI) sequence analysis. The majority of individuals from Poronui Station (Taupo) were either the Tasmanian Florentine Valley strain or hybrids between the original Western Australian and Tasmanian strains. It is uncertain whether this outcome will improve the biological control of Paropsis charybdis in New Zealand.

Keywords: eucalyptus tortoise beetle, Paropsis charybdis, Enoggera nassaui, cold tolerance, biological control, strains, COI.

Related articles
pdfLaboratory bioassays of new synthetic and microbial insecticides to control Eucalyptus tortoise beetle Paropsis charybdis
T.M. Withers, M.C. Watson, M.S. Watt, T.L. Nelson, L.A. Harper and M.R.H. Hurst (2013)
New Zealand Plant Protection 66: 138-147
pdfDistribution and current status of natural enemies of Paropsis charybdis in New Zealand
T.J. Murray, T.M. Withers, S. Mansfield, and J. Bain (2008)
New Zealand Plant Protection 61: 185-190
pdfDetection of a Tasmanian strain of the biological control agent Enoggera nassaui Girault (Hymenoptera: Pteromalidae) using mitochondrial COI
B.D. Murphy, M.K. Kay and G.R. Allen (2004)
New Zealand Plant Protection 57: 252-256
pdfThe seasonal abundance of the newly established parasitoid complex of the Eucalyptus tortoise beetle (Paropsis charybdis)
D.C. Jones and T.M. Withers (2003)
New Zealand Plant Protection 56: 51-55
pdfNegative effects of strain hybridisation on the biocontrol agent Microctonus aethiopoides
S.L. Goldson, M.R. McNeill and J.R. Proffitt (2003)
New Zealand Plant Protection 56: 138-142
pdfParopsis charybdis defoliation of Eucalyptus stands in New Zealand's central North Island
B.D. Murphy and M.K. Kay (2000)
New Zealand Plant Protection 53: 334-338

Copyright © 2011 New Zealand Plant Protection Society (Inc.).

Please refer to the terms of use.