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Evaluation of extracts and oils of tick-repellent plants from Sweden
KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
2005 (engelsk)Inngår i: Medical and Veterinary Entomology, ISSN 0269-283X, E-ISSN 1365-2915, Vol. 19, nr 4, s. 345-352Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Leaves of Myrica gale Linnaeus (Myricaceae), Rhododendron tomentosum (Stokes) H. Harmaja (formerly Ledum palustre Linnaeus: Ericaceae) and Artemisia absinthium Linnaeus (Asteraceae) were extracted with organic solvents of different polarities and the essential oils of leaves were obtained by steam distillation. The extracts or oils were tested in the laboratory for repellency against host-seeking nymphs of Ixodes ricinus Linnaeus (Acari: Ixodidae). Rhododendron tomentosum oil, 10%, diluted in acetone, exhibited 95% repellency; R. tomentosum and A. absinthium extracts in ethyl acetate, > 70% repellency; A. absinthium extract in hexane, similar to 62% repellency; and M. gale oil, 10%, similar to 50% repellency on I. ricinus nymphs. Compounds in the leaf extracts or in the oils were collected by solid phase microextraction (SPME) and identified by gas chromatography-mass spectrometry (GC-MS) and/or MS. Characteristic volatiles detected from oil or extract of M. gale were the monoterpenes 1,8-cineole, alpha-terpineol, 4-terpineol and thujenol; and of R. tomentosum myrcene and palustrol. Characteristic volatiles from leaf extracts of A. absinthium were sabinene, oxygenated monoterpenes, e.g. thujenol and linalool, and geranyl acetate. Each plant species synthesized numerous volatiles known to exhibit acaricidal, insecticidal, 'pesticidal' and/or arthropod repellent properties. These plants may be useful sources of chemicals for the control of arthropods of medical, veterinary or agricultural importance.

sted, utgiver, år, opplag, sider
2005. Vol. 19, nr 4, s. 345-352
Emneord [en]
Ixodes ricinus, acaricides, biopesticides, botanical insecticides, essential oils, phytochemicals, terpenes, tick repellents, Sweden, rhipicephalus-appendiculatus, acari, volatiles, responses, ixodidae, deet, monoterpenes, scolytidae, protection, drugs
Identifikatorer
URN: urn:nbn:se:kth:diva-15240ISI: 000233807900002Scopus ID: 2-s2.0-29144473580OAI: oai:DiVA.org:kth-15240DiVA, id: diva2:333281
Merknad
QC 20100525Tilgjengelig fra: 2010-08-05 Laget: 2010-08-05 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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