Chemical Composition of Essential Oil FromTetradenia ripariaand Its Attractant Activity for Mediterranean Fruit Fly,Ceratitis capitata

Abstract

The Mediterranean fruit fly or medfly, Ceratitis capitata (Wiedemann) (Diptera: Tephritidae), is one of the most economically important invasive pests worldwide, with over 300 known hosts. Essential oils have great promise for application in integrated pest management, where they function as natural repellents, attractants, and toxicants with a reduced impact on the environment. In this study, we evaluated essential oil from aerial parts of the African ginger bush, Tetradenia riparia (Hochst.) Codd (Lamiaceae), as a potential new attractant for male C. capitata. Tetradenia riparia essential oil (TREO) was analyzed by gas chromatography (GC)-flame ionization detection and GC-mass spectrometry (GC-MS). The primary compounds identified were fenchone (15%), δ-cadinene (11%), 14-hydroxy-β-caryophyllene (8%), and tau-cadinol (7%). In short-range laboratory bioassays with sterile male medflies, TREO exhibited attractancy comparable to that observed with a positive control, essential oil from tea tree ( Melaleuca alternifolia (Maiden and Betche) Cheel.). This study provides the first report of C. capitata behavioral response to TREO. Further research is needed, particularly with the 2 enantiomers of fenchone, to determine the chemical constituents responsible for the attraction of C. capitata.

Insecticidal and Attractant Activities of Magnolia citrata Leaf Essential Oil against Two Major Pests from Diptera: Aedes aegypti (Culicidae) and Ceratitis capitata (Tephritidae)

“…In short-range attraction bioassays with male C. capitata , there were significant differences in behavioral response to the five essential oil treatments ( F = 8.509; df = 4,20; p < 0.001; Figure 2 ). As seen in previous studies [ 44 , 45 , 46 , 47 ], highest attraction was observed with TTO (tea tree oil) [ 44 ]. Attraction to MCEO was comparable to that observed with TREO ( Tetradenia riparia essential oil), a strong attractant [ 46 ], but also comparable to that observed with BTEO (blue tansy essential oil), a milder attractant [ 47 ].…”

“…As seen in previous studies [ 44 , 45 , 46 , 47 ], highest attraction was observed with TTO (tea tree oil) [ 44 ]. Attraction to MCEO was comparable to that observed with TREO ( Tetradenia riparia essential oil), a strong attractant [ 46 ], but also comparable to that observed with BTEO (blue tansy essential oil), a milder attractant [ 47 ]. However, attraction to MCEO was significantly greater than that observed with MGEO (mastic gum essential oil), a weak attractant [ 45 ], and significantly less than that observed with TTO, the best essential oil attractant identified to date [ 44 , 45 , 46 , 47 ].…”

“…Previous chemical analyses indicated that the major components in the highly attractive TTO consisted of terpinen-4-ol (41.8%), γ-terpinene (15.5%), p -cymene (11.9%), α-terpineol (5.0%), α-terpinene (3.9%), 1,8-cineole (3.5%), α-pinene (2.9%), and terpinolene (2.8%) [ 44 ]. Principal components identified from TREO consisted of fenchone (15%), δ-cadinene (11%), 14-hydroxy-β-caryophyllene (8%), and tau -cadinol (7%) [ 46 ]. The current study reports the major constituents of MCEO as linalool (19%), geranial (16%), citronellal (14%), neral (14%), and sabinene (12%).…”

Blue Tansy Essential Oil: Chemical Composition, Repellent Activity Against Aedes aegypti and Attractant Activity for Ceratitis capitata

“…The source of insects, rearing protocols and experiment design for laboratory bioassays were as described previously. [25][26][27] All observations were carried out at room temperature in small collapsible cages (20.3 × 20.3 × 20.3 cm) into which 50 flies were introduced 1 hour prior to the start of each experiment. Tests were initiated by introducing a Petri dish (53 mm diameter × 12 mm height) with a filter paper disk containing a sample of essential oil (10 µL of a 10% dilution in acetone).…”

“…In recent years, reduced-risk agents such as essential oils and natural ("green") volatile compounds have gained increased recognition as key elements for improving integrated pest management strategies. 8,[13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] Tanacetum annuum L. (synonyms: Balsamita annua L., B. multifida Clemente, and Chrysanthemum annuum [L.] Fiori) is a member of the giant family of Asteraceae (Compositae). Members of the genus Tanacetum have been used for medicinal purposes for decades due to their wide range of pharmacological and chemical properties as well as excellent medicinal values.…”