Premium
Repellency of Cinnamomum cassia bark compounds and cream containing cassia oil to Aedes aegypti (Diptera: Culicidae) under laboratory and indoor conditions
Author(s) -
Chang KyuSik,
Tak JunHyung,
Kim SoonIl,
Lee WonJa,
Ahn YoungJoon
Publication year - 2006
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.1268
Subject(s) - cassia , cinnamaldehyde , cinnamomum , deet , aedes aegypti , bioassay , bark (sound) , geraniol , traditional medicine , toxicology , vaseline , food science , biology , chemistry , botany , essential oil , medicine , larva , organic chemistry , ecology , alternative medicine , genetics , wound healing , pathology , traditional chinese medicine , catalysis , immunology
Patch and skin bioassays were used in laboratory and indoor tests to evaluate the repellency of ( E )‐cinnamaldehyde, identified in Cinnamomum cassia Blume bark and essential oil, and a cream containing 5% (w/w) cassia oil against Aedes aegypti (L.) females. Results were compared with those of a known C. cassia compound cinnamyl alcohol, N , N ‐diethyl‐ m ‐toluamide (DEET) and two commercial repellents: MeiMei ® cream containing citronella and geranium oils and Repellan S ® aerosol containing 19% DEET. In patch bioassay tests with A. aegypti females, ( E )‐cinnamaldehyde at 0.153 mg cm −2 and DEET at 0.051 mg cm −2 provided 93 and 89% protection at 40 min after exposure. In skin bioassay tests, ( E )‐cinnamaldehyde at 0.051 mg cm −2 and DEET at 0.025 mg cm −2 provided 87 and 95% protection at 30 min after application. ( E )‐Cinnamaldehyde was significantly more effective than cinnamyl alcohol in both bioassays. In indoor tests with four human volunteers, 5% cassia oil cream provided 94, 83 and 61% protection against A. aegypti females exposed for 30, 50 and 70 min after application respectively. Cassia oil cream was a slightly less effective repellent than MeiMei cream. Repellan S aerosol provided 91% repellency at 120 min after application. Products containing cassia oil merit further study as potential repellents for the protection of humans and domestic animals from blood‐feeding vectors and the diseases they transmit. Copyright © 2006 Society of Chemical Industry