In this study, essential oil (EO) extracted from aerial parts of Melaleuca alternifolia plants cultivated in Italy was evaluated for biotoxicity against adults of Mediterranean fruit fly, Ceratitis capitata (Diptera: Tephritidae), and its parasitoid, Psyttalia concolor (Hymenoptera: Braconidae). Tea tree EO was mainly composed of oxygenated monoterpenes and monoterpene hydrocarbons. The three major constituents of this EO were 4-terpineol, γ-terpinene and α-terpinene (35.10%, 17.40% and 10.70%, respectively). M. alternifolia EO was proved to be toxic against C. capitata and P. concolor. Through contact and fumigation assays, tea tree EO showed lower LC50 values towards C. capitata over P. concolor (contact: 0.117 μL oil/cm2 vs. 0.147 μL oil/cm2; fumigation: 2.239 μL oil/L air vs. 9.348 μL oil/L air). In ingestion formulation, the LD50 value was lower in C. capitata (0.269% of EO, w/w) than in P. concolor (0.638% of EO, w/w). This study extends the number of effective essential oils against the Mediterranean fruit fly and provides useful information for the development of new tephritid control tools. This could expidite the building of eco-friendly alternatives in fruit fly integrated control programmes, thus reducing the use of broad-spectrum insecticides.

Biotoxicity of Melaleuca alternifolia (Myrtaceae) essential oil against the Mediterranean fruit fly, Ceratitis capitata (Diptera: Tephritidae), and its parasitoid Psyttalia concolor (Hymenoptera: Braconidae)

BENELLI, GIOVANNI;CANALE, ANGELO;FLAMINI, GUIDO;CECCARINI, LUCIA;MACCHIA, MARIO;CONTI, BARBARA
2013

Abstract

In this study, essential oil (EO) extracted from aerial parts of Melaleuca alternifolia plants cultivated in Italy was evaluated for biotoxicity against adults of Mediterranean fruit fly, Ceratitis capitata (Diptera: Tephritidae), and its parasitoid, Psyttalia concolor (Hymenoptera: Braconidae). Tea tree EO was mainly composed of oxygenated monoterpenes and monoterpene hydrocarbons. The three major constituents of this EO were 4-terpineol, γ-terpinene and α-terpinene (35.10%, 17.40% and 10.70%, respectively). M. alternifolia EO was proved to be toxic against C. capitata and P. concolor. Through contact and fumigation assays, tea tree EO showed lower LC50 values towards C. capitata over P. concolor (contact: 0.117 μL oil/cm2 vs. 0.147 μL oil/cm2; fumigation: 2.239 μL oil/L air vs. 9.348 μL oil/L air). In ingestion formulation, the LD50 value was lower in C. capitata (0.269% of EO, w/w) than in P. concolor (0.638% of EO, w/w). This study extends the number of effective essential oils against the Mediterranean fruit fly and provides useful information for the development of new tephritid control tools. This could expidite the building of eco-friendly alternatives in fruit fly integrated control programmes, thus reducing the use of broad-spectrum insecticides.
Benelli, Giovanni; Canale, Angelo; Flamini, Guido; Pier Luigi, Cioni; Federica, Demi; Ceccarini, Lucia; Macchia, Mario; Conti, Barbara
File in questo prodotto:
File Dimensione Formato  
Benelli et al_Ind Crop Prod.pdf

solo utenti autorizzati

Tipologia: Versione finale editoriale
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 468.95 kB
Formato Adobe PDF
468.95 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/240926
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 39
  • ???jsp.display-item.citation.isi??? 37
social impact