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1 August 2007 Insecticidal Activity of Citrus aurantium Fruit, Leaf, and Shoot Extracts Against Adult Olive Fruit Flies (Diptera: Tephritidae)
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Abstract

Solvent extracts of differing polarity from Citrus aurantium (L.) (Rutaceae) fruit, leaves, and shoots were evaluated for biological activity against adults of the olive fruit fly, Bactrocera oleae (Gmelin) (Diptera: Tephritidae). Using a petri dish residual exposure bioassay, we found that the petroleum ether extract from fruit alone showed insecticidal activity against the flies. The extract of the three fruit tissues (flavedo [peel], albedo, and flesh) indicated that bioactivity was limited to the flavedo, and this activity was significantly higher than that of the whole fruit extract. The most effective extract was obtained when fresh flavedo was used, whereas extracts of oven-dried flavedo were inactive. Fruit maturity also affected bioactivity; extracts of ripe fruit were more effective than those of unripe fruit. Our results suggest that C. aurantium flavedo contains secondary metabolites with insecticidal activity against B. oleae adults.

E. P. Siskos, M. A. Konstantopoulou, B. E. Mazomenos, and M. Jervis "Insecticidal Activity of Citrus aurantium Fruit, Leaf, and Shoot Extracts Against Adult Olive Fruit Flies (Diptera: Tephritidae)," Journal of Economic Entomology 100(4), 1215-1220, (1 August 2007). https://doi.org/10.1603/0022-0493(2007)100[1215:IAOCAF]2.0.CO;2
Received: 20 July 2006; Accepted: 7 May 2007; Published: 1 August 2007
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