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Effects of essential oil formulations on Ceratitis capitata Wied. (Dipt., Tephritidae) adult flies

Sanna Passino, Giovanni and Bazzoni, E. and Moretti, Mario Domenico Luigi and Prota, Romolo (1999) Effects of essential oil formulations on Ceratitis capitata Wied. (Dipt., Tephritidae) adult flies. Journal of applied entomology, Vol. 123 (3), p. 145-149. ISSN 0931-2048. eISSN 1439-0418. Article.

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DOI: 10.1046/j.1439-0418.1999.00332.x

Abstract

The effects on adult Ceratitis capitata of the ingestion of formulations containing different concentrations of some essential oils were examined. The bioassays were carried out using groups of C. capitata adults fed for 3 days with formulations containing a known concentration (0.25%, 0.5%, 1.0%) of essential oils. The oils, of different chemical composition, were obtained by steam distillation from aromatic plants collected during the balmy period. The essential oils of Rosmarinus officinalis and Salvia officinalis, which are rich in monoterpenic hydrocarbons and monoterpenic ketones, respectively, showed poor activity, whereas the oils of Cinnamomum zeylanicum and Thymus sp. showed a marked toxic effects (over 90% mortality after 72 h). This could be explained by the activity of cinnamic aldehyde (about 80% of the Cinnamomum oil) and carvacrol (68% of Th. capitatus oil and about 45% of Th. herba barona oil). The first consequence of ingesting even small quantities of essential oils was a depressive effect on the nervous system. Dissection of dead flies showed marked differences compared with the controls and microscopic examination revealed anomalies in the gut region.

Item Type:Article
ID Code:9965
Status:Published
Refereed:Yes
Uncontrolled Keywords:Ceratitis capitata, Cinnamomum zeylanicum oil, Thymus oil
Subjects:Area 05 - Scienze biologiche > BIO/14 Farmacologia
Area 03 - Scienze chimiche > CHIM/09 Farmaceutico tecnologico applicativo
Divisions:002 Altri enti e centri di ricerca del Nord Sardegna > CNR-Consiglio Nazionale delle Ricerche > Istituto di ricerca sul controllo biologico dell'ambiente, Sassari
001 Università di Sassari > 01 Dipartimenti > Scienze del farmaco
Publisher:Blackwell / Wiley
ISSN:0931-2048
eISSN:1439-0418
Deposited On:14 Jul 2014 12:55

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