Implications of phenotypic variation of Myzus persicae (Hemiptera: Aphididae) for biological control on greenhouse pepper plants

A - Papers appearing in refereed journals

Gillespie, D. R., Quiring, D. J. M., Foottit, R. G., Foster, S. P. and Acheampong, S. 2009. Implications of phenotypic variation of Myzus persicae (Hemiptera: Aphididae) for biological control on greenhouse pepper plants. Journal of Applied Entomology. 133 (7), pp. 505-511. https://doi.org/10.1111/j.1439-0418.2008.01365.x

AuthorsGillespie, D. R., Quiring, D. J. M., Foottit, R. G., Foster, S. P. and Acheampong, S.
Abstract

Variation in vulnerability to natural enemies, reproductive rate and insecticide resistance among phenotypes of Myzus persicae (Sulzer) has been shown to have the potential to disrupt biological control and IPM of this species, and movement of particularly troublesome phenotypes in international horticultural trade could be cause for concern. Three important components of fitness, vulnerability to parasitoids, reproduction and insecticide resistance were determined in three clones of M. persicae originating from prevalent phenotype populations on pepper crops in greenhouses in British Columbia, Canada. One of these phenotypes appeared to be consistently involved in outbreaks in commercial operations. These clones were also characterized for their DNA microsatellite genotype and compared with genotypes of M. persicae from Europe. The clone involved in outbreaks in commercial greenhouses showed reduced vulnerability to parasitoids, and a higher reproductive rate compared to the other two clones suggesting that these traits may have been involved in outbreaks. As in M. persicae European clones, a higher reproductive rate was correlated with a lack of esterase-based resistance (primarily to organophosphates and, to some extent, to carbamates and pyrethroids). However, microsatellite analysis demonstrated that the three clones investigated in British Columbia had unique genotypes, and therefore there was no evidence for their movement in international trade.

KeywordsEntomology
Year of Publication2009
JournalJournal of Applied Entomology
Journal citation133 (7), pp. 505-511
Digital Object Identifier (DOI)https://doi.org/10.1111/j.1439-0418.2008.01365.x
Open accessPublished as non-open access
FunderBC Greenhouse Research Council
BC Investment Agriculture Fund
Agriculture and Agri-Food Canada Research Centre, Agassiz, British Columbia
Funder project or codeCentre for Sustainable Pest and Disease Management (PDM)
Project: 4662
ISSN09312048
PublisherWiley
Grant ID738

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