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Attraction of male summerform pear psylla to volatiles from female pear psylla: effects of female age, mating status, and presence of host plant

Published online by Cambridge University Press:  02 April 2012

David R. Horton*
Affiliation:
United States Department of Agriculture, Agricultural Research Service, 5230 Konnowac Pass Road, Wapato, Washington 98951, United States of America
Christelle Guédot
Affiliation:
United States Department of Agriculture, Agricultural Research Service, 5230 Konnowac Pass Road, Wapato, Washington 98951, United States of America
Peter J. Landolt
Affiliation:
United States Department of Agriculture, Agricultural Research Service, 5230 Konnowac Pass Road, Wapato, Washington 98951, United States of America
*
1Corresponding author (e-mail: [email protected]).

Abstract

Pear psylla, Cacopsylla pyricola (Förster) (Hemiptera: Psyllidae), is a pest of pears, Pyrus L. (Rosaceae), throughout North America and western Europe. Previous studies in our laboratory showed that males of the overwintering form (winter morphotype) were attracted to volatile chemicals from pear shoots infested with post-diapause females. The current study shows that males of the summer morphotype also are attracted to volatiles from female-infested host material. Older females (8–10 d old) were significantly more attractive to males than younger (2–5 d old) females. Both virgin and mated females attracted male psylla. Volatiles from female summerforms attracted males even in the absence of host-plant material, and both living and freshly killed females were attractive. Our results indicate that female C. pyricola emit a volatile sex attractant, and the results of the studies further define the life-history conditions in female pear psylla that lead to male attraction.

Résumé

Le psylle du poirier, Cacopsylla pyricola (Förster) (Hemiptera: Psyllidae), est un ravageur du poirier dans toute l’Amérique du Nord et l’Europe de l’Ouest. Des études antérieures dans notre laboratoire ont montré que les mâles de la forme hivernante (morphotype d’hiver) sont attirés par les substances volatiles émises par les pousses de poiriers infestées par des femelles au stade post-diapause. La présente étude montre que les mâles du morphotype d’été sont aussi attirés par les substances volatiles émises par les plantes hôtes infestées par les femelles. Les femelles plus âgées (8–10 j d’âge) sont significativement plus attirantes pour les mâles que les femelles plus jeunes (2–5 j d’âge). Tant les femelles vierges que les accouplées attirent les psylles mâles. Les substances volatiles émises par les femelles de la forme d’été attirent les mâles, même en l’absence de tissus de la plante hôte; de même, les femelles vivantes et celles qui sont fraîchement tuées sont attirantes. Nos travaux indiquent que les femelles de C. pyricola émettent une substance attractive sexuelle volatile et ils déterminent les conditions du cycle biologique des femelles du psylle du poirier qui provoquent l’attraction des mâles.

[Traduit par la Rédaction]

Type
Articles
Copyright
Copyright © Entomological Society of Canada 2008

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References

Bierl-Leonhardt, B.A., Moreno, D.S., Schwarz, M., Forster, H.S., Plimmer, J.R., and DeVilbiss, E.D. 1982. Isolation, identification, synthesis, and bioassay of the pheromone of the Comstock mealybug and some analogs. Journal of Chemical Ecology, 8: 689699.Google Scholar
Burts, E.C., and Fischer, W.R. 1967. Mating behavior, egg production, and egg fertility in the pear psylla. Journal of Economic Entomology, 60: 12971300.Google Scholar
Campbell, C.A.M., Cook, F.J., Pickett, J.A., Pope, T.W., Wadhams, L.J., and Woodcock, C.M. 2003. Responses of the aphids Phorodon humuli and Rhopalosiphum padi to sex pheromone stereochemistry in the field. Journal of Chemical Ecology, 29: 22252234.Google Scholar
Doane, C.C. 1966. Evidence for a sex attractant in females of the red pine scale. Journal of Economic Entomology, 59: 15391540.Google Scholar
Einhorn, J., Guerrero, A., Ducrot, P.H., Boyer, F.D., Gieselmann, M., and Roelofs, W. 1998. Sex pheromone of the oleander scale, Aspidiotus nerii: structural characterization and absolute configuration of an unusual functionalized cyclobutane. Proceedings of the National Academy of Sciences, 95: 98679872.CrossRefGoogle ScholarPubMed
Horton, D.R., and Landolt, P.J. 2007. Attraction of male pear psylla, Cacopsylla pyricola, to female-infested pear shoots. Entomologia Experimentalis et Applicata, 123: 177183.Google Scholar
Horton, D.R., Broers, D.A., Hinojosa, T., and Lewis, T.M. 1998. Ovarian development in overwintering pear psylla, Cacopsylla pyricola (Homoptera: Psyllidae): seasonality and effects of photoperiod. The Canadian Entomologist, 130: 859867.Google Scholar
Horton, D.R., Guédot, C., and Landolt, P.J. 2007. Diapause status of females affects attraction of male pear psylla, Cacopsylla pyricola, to volatiles from female-infested pear shoots. Entomologia Experimentalis et Applicata, 123: 185192.Google Scholar
Krysan, J.L. 1990. Laboratory study of mating behavior as related to diapause in overwintering Cacopsylla pyricola (Homoptera: Psyllidae). Environmental Entomology, 19: 551557.Google Scholar
Krysan, J.L., and Higbee, B.S. 1990. Seasonality of mating and ovarian development in overwintering Cacopsylla pyricola (Homoptera: Psyllidae). Environmental Entomology, 19: 544550.Google Scholar
Lanier, G.N., Qi, Y.-T., West, J.R., Park, S.C., Webster, F.X., and Silverstein, R.M. 1989. Identification of the sex pheromone of three Matsucoccus pine bast scales. Journal of Chemical Ecology, 15: 16451659.Google Scholar
Millar, J.G., Daane, K.M., McElfresh, J.S., Moreira, J.A., Malakar-Kuenen, R., Guillen, M., and Bentley, W.J. 2002. Development and optimization of methods for using sex pheromone for monitoring the mealybug Planococcus ficus (Homoptera: Pseudococcidae) in California vineyards. Journal of Economic Entomology, 95: 706714.CrossRefGoogle ScholarPubMed
Oldfield, G.N. 1970. Diapause and polymorphism in California populations of Psylla pyricola (Homoptera: Psyllidae). Annals of the Entomological Society of America, 63: 180184.CrossRefGoogle Scholar
Park, S.C., Wi, A.J., and Kim, H.S. 1994. Response of Matsucoccus thunbergianae males to synthetic sex pheromone and its utilization for monitoring the spread of infestation. Journal of Chemical Ecology, 20: 21852196.Google Scholar
Percy, D.M., Taylor, G.S., and Kennedy, M. 2006. Psyllid communication: acoustic diversity, mate recognition and phylogenetic signal. Invertebrate Systematics, 20: 431445.Google Scholar
Pickett, J.A., Wadhams, L.J., and Woodcock, C.M. 1992. The chemical ecology of aphids. Annual Review of Entomology, 37: 6790.CrossRefGoogle Scholar
SAS Institute Inc. 2002. SAS® 9.1 for Windows®. SAS Institute Inc., Cary, North Carolina.Google Scholar
Soroker, V., Talebaev, S., Harari, A.R., and Wesley, S.D. 2004. The role of chemical cues in host and mate location in the pear psylla Cacopsylla bidens (Homptera: Psyllidae). Journal of Insect Behavior, 17: 613626.CrossRefGoogle Scholar
Tishechkin, D.Y. 1989. Sound signaling of psyllids (Homoptera, Psyllinea) in the Moscow region. Vestnik Moskovskogo Univeriteta, Biologiya, 44: 2024.Google Scholar
Tishechkin, D.Y. 2006. Vibratory communication in Psylloidea (Hemiptera). In Insect sounds and communication: physiology, behaviour, ecology and evolution. Edited by Drosopoulos, S. and Claridge, M.F.. CRC Press, Boca Raton, Florida. pp. 357363.Google Scholar
Walton, V.M., Daane, K.M., and Pringle, K.L. 2004. Monitoring Planococcus ficus in South African vineyards with sex pheromone-baited traps. Crop Protection, 23: 10891096.CrossRefGoogle Scholar
Walton, V.M., Daane, K.M., Bentley, W.J., Millar, J.G., Larsen, T.E., and Malakar-Kuenen, R. 2006. Pheromone-based mating disruption of Planococcus ficus (Hemiptera: Pseudococcidae) in California vineyards. Journal of Economic Entomology, 99: 12801290.Google Scholar
Wong, T.T.Y., and Madsen, H.F. 1967. Laboratory and field studies on the seasonal forms of pear psylla in northern California. Journal of Economic Entomology, 60: 163168.CrossRefGoogle Scholar
Yin, L.T., and Maschwitz, U. 1983. Sexual pheromone in the green house whitefly Trialeurodes vaporariorum. Zeitschrift fur Angewandte Entomologie, 95: 439446.Google Scholar