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2014 ASHS Annual Conference

20145:
Essential Oil of Caryopteris  xclandonensis 'Durio': Chemical Composition and Repellent and Larvicidal Activity against Aedes aegypti (L.) (Diptera: Culicidae)

Wednesday, July 30, 2014
Ballroom A/B/C (Rosen Plaza Hotel)
Eugene K. Blythe, Coastal Research & Extension Center, Mississippi State University, Poplarville, MS
Nurhayat Tabanca, ARS, Natural Products Utilization Research Unit, The University of Mississippi, University, MS
Betul Demirci, Anadolu University, Eskişehir, Turkey
Ulrich R. Bernier, USDA-ARS, Gainesville, FL
Abbas Ali, The University of Mississippi, University, MS
K. Husnu Can Baser, Anadolu University, Eskişehir, Turkey
Ikhlas A. Khan, The University of Mississippi, University, MS
Caryopteris x clandonensis (Lamiaceae), a hybrid of C. incana and C. mongolica, is a popular landscape shrub for USDA hardiness zones 5 to 9 with mildly aromatic foliage and violet to deep-blue flowers in later summer. The cultivar Durio is novel in producing pink flowers. Essential oil of C. ×clandonensis 'Durio' was evaluated as part of a larger program evaluating activity of essential oils from ornamental plants as more environmentally friendly, biodegradable insect control options. Plant essential oils may be good alternative natural sources of mosquito control agents since they are rich in bioactive volatile compounds. Essential oil was extracted from aerial parts of C. ×clandonensis 'Durio' by hydrodistillation for 3 hours using a Clevenger-type apparatus and the oil was analyzed by gas chromatography and gas chromatography mass spectrometry. Primary compounds in the oil were a-copaene and limonene. The essential oil exhibited mild repellent activity against Aedes aegypti, the yellow fever mosquito.
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