We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Chemical composition and larvicidal properties of the essential oils from Drimys brasiliensis Miers (Winteraceae) on the cattle tick Rhipicephalus ( Boophilus ) microplus and the brown dog tick Rhipicephalus sanguineus.
- Authors
Vera Ribeiro; Verônica Rolim; Sérgio Bordignon; Amélia Henriques; Gilséia Dorneles; Renata Limberger; Gilsane von Poser
- Abstract
Abstract  The essential oil obtained from leaves and stem barks of the Southern Brazilian native Drimys brasiliensis Miers, a tree with medicinal properties, was analyzed by gas chromatography (GC) and GC/mass spectrometry (MS). The oil was characterized by sesquiterpenoids (66%), cyclocolorenone being the most abundant (30.4%), followed by bicyclogermacrene (11.8%) and alpha-gurjunene (6.0%). Laboratory tests were carried out to determine the toxicity of the essential oil on larvae of the cattle tick Rhipicephalus (Boophilus) microplus and the brown dog tick Rhipicephalus sanguineus by the larval immersion test. It was observed that the oil was lethal, killing 100% of the larvae of both ticks at the doses of 25, 12.5, and 6.25 µl/ml. The lowest dose tested, 3.125 µl/ml, was also toxic, killing 95â98% of the larvae.
- Subjects
FATS &; oils; GAS chromatography; MASS spectrometry; CLINICAL trials
- Publication
Parasitology Research, 2008, Vol 102, Issue 3, p531
- ISSN
0932-0113
- Publication type
Article
- DOI
10.1007/s00436-007-0799-x