Resistance of wild Solanum accessions to aphids and other potato pests in Quebec field conditions
1Université du Québec à Montréal, Groupe de Recherche en Écologie Comportementale et Animale,
Département des sciences biologiques, C.P. 8888, Succ. Centre-Ville, Montréal, Qc, Canada, H3C 3P8
2Centre de Recherche et de DeÏveloppement en Horticulture, Agriculture et Agro-alimentaire Canada, 430
Boul. Gouin, Saint-Jean-sur-Richelieu, Qc, Canada, J3B 3E6
3Université de Picardie Jules Verne, Biologie des Plantes et Contrôle des Insectes Ravageurs, 33 rue St Leu,
80039 Amiens cedex 1, France
Abstract
Two experiments were done to determine the susceptibility of six wild potato accessions to the aphids Macrosiphum euphorbiae (Thomas) (Hemiptera: Aphididae) and Myzus persicae (Sulzer). Densities of aphid colonies were compared between caged Solanum pinnatisectum Dunal (Solanales: Solanaceae), S. polyadenium Greenmam, S. tarijense Hawkes, S. infundibuliforme Philippi, S. oplocense Hawkes, and S. stoloniferum Schlechted and Bouché, and the commercially cultivated potato plant S. tuberosum L. cv. Désirée. Moreover the susceptibility of S. polyadenium and S. tarijense to the Colorado potato beetle Leptinotarsa decemlineata (Say) (Coleoptera: Chrlysomelidae), the potato flea beetle Epitrix cucumeris (Harris), and the potato leafhopper Empoasca fabae (Harris) (Hemiptera: Cicadellidae) was compared to that of S. tuberosum cv. Désirée in the field. Results indicated that S. polyadenium and S. tarijense were more resistant to M. persicae than S. pinnatisectum and the commercially cultivated S. tuberosum cv. Désirée. Solanum polyadenium was more resistant to aphids than S. tarijense in 2004, but not in 2005. Moreover, S. polyadenium and S. tarijense were more resistant than S. tuberosum cv. Désirée to L. decemlineata, E.cucumeris and E. fabae.
Keywords: Aphididae, Coleoptera, Plant resistance to herbivores, Empoasca fabae, Epitrix cucumeris, Leptinotarsa decemlineata, Macrosiphum euphorbiae, Myzus euphorbiae, Solanum polyadenium, Solanum tarijense
Correspondence:
abejanmircea@yahoo.ca,
blucas.eric@uqam.ca,
cphilippe.giordanengo@u-picardie.fr,
d*charles.vincent@agr.gc.ca,
*Corresponding author
Associate Editor: TX Liu was editor of this paper.
Received: 20 May 2009 | Accepted: 14 November 2009 | Published: 24 September 2010
Copyright: This is an open access paper. We use the Creative Commons Attribution 3.0 license that permits unrestricted use, provided that the paper is properly attributed.
ISSN: 1536-2442 | Volume 10, Number 161
Fréchette B, Bejan M, Lucas É, Giordanengo P, Vincent C. 2010. Resistance of wild Solanum accessions to aphids and other potato pests in Quebec field conditions Journal of Insect Science 10:161, available online: insectscience.org/10.161
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