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Evaluating potential olive orchard sugar food sources for the olive fly parasitoid Psyttalia concolor

Furtado, C., Belo, A. F., Nunes, F. M., Ganhão, E., Müller, Carsten Theodor, Torres, L. and Rei, F. T. 2016. Evaluating potential olive orchard sugar food sources for the olive fly parasitoid Psyttalia concolor. BioControl 61 (5) , pp. 473-483. 10.1007/s10526-016-9732-5

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Abstract

Olive fruit fly Bactrocera oleae (Rossi) (Diptera: Tephritidae) is a major olive pest in the Mediterranean basin where increasing insecticide resistance has enhanced damage and necessitates more reliance on other control strategies, such as biological control. Provision of floral resources has been reported to improve the effectiveness of natural enemies. Here, we tested the effect of six plant nectars and two honeydew sources on the survival of Psyttalia concolor (Szépligeti) (Hymenoptera: Braconidae), a parasitoid wasp used in the biological control of olive fruit fly. Our results showed a positive effect on survival associated with nectars of Anchusa azurea Mill., Rosmarinus officinalis L., Lavatera cretica L. and Calamintha nepeta (L.) Savi, while honeydew proved to be a valuable alternative food source. When offering flowers directly to insects, Anchusa azurea, Lavatera cretica, and Foeniculum vulgare L. were found to be the most beneficial species, indicating also that P. concolor feeds predominantly on shallow corollas.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Subjects: Q Science > QL Zoology
Publisher: Springer Verlag
ISSN: 1386-6141
Date of First Compliant Deposit: 11 April 2016
Date of Acceptance: 13 March 2016
Last Modified: 05 Jun 2017 12:15
URI: http://orca.cardiff.ac.uk/id/eprint/89073

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