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.

地中海果蝇或地中海果蝇（Ceratitis capitata（Wiedemann）（Diptera：Tephritidae））是全世界经济上最重要的入侵害虫之一，拥有300多个已知寄主。香精油有望在病虫害综合治理中发挥作用，它们可作为天然驱虫剂，引诱剂和有毒物质，对环境的影响减小。在这项研究中，我们评估了非洲生姜灌木地上部分（Tetradenia riparia（Hochst。）Codd（Lamiaceae）的地上部分的精油，它是一种潜在的雄性C. capitata引诱剂。河豚草通过气相色谱（GC）-火焰电离检测和GC-质谱（GC-MS）分析精油（TREO）。鉴定出的主要化合物为Fenchone（15％），δ-cadinene（11％），14-hydroxy-β-caryophyllene（8％）和tau- cadinol（7％）。在使用雄性不育杂种的短程实验室生物测定中，TREO的诱集性可与阳性对照茶树（白千层（Maiden alternifolia）（Maiden and Betche）Cheel。）的阳性对照所观察到的相比。这项研究提供了首个C. capitata对TREO行为反应的报告。需要进一步的研究，特别是与对映异构体2的葑酮，以确定负责的吸引力的化学成分地中海实蝇。