| Literature DB >> 17067055 |
Junwei Zhu1, Xiaopeng Zeng, Ting Liu, Kuen Qian, Yuhua Han, Suqin Xue, Brad Tucker, Gretchen Schultz, Joel Coats, Wayne Rowley, Aijun Zhang.
Abstract
The larvicidal activity and repellency of 5 plant essential oils--thyme oil, catnip oil, amyris oil, eucalyptus oil, and cinnamon oil--were tested against 3 mosquito species: Aedes albopictus, Ae. aegypti, and Culex pipiens pallens. Larvicidal activity of these essentials oils was evaluated in the laboratory against 4th instars of each of the 3 mosquito species, and amyris oil demonstrated the greatest inhibitory effect with LC50 values in 24 h of 58 microg/ml (LC90 = 72 microg/ml) for Ae. aegypti, 78 microg/ml (LC90 = 130 microg/ml) for Ae. albopictus, and 77 microg/ml (LC90 = 123 microg/ml) for Cx. p. pallens. The topical repellency of these selected essential oils and deet against laboratory-reared female blood-starved Ae. albopictus was examined. Catnip oil seemed to be the most effective and provided 6-h protection at both concentrations tested (23 and 468 microg/ cm2). Thyme oil had the highest effectiveness in repelling this species, but the repellency duration was only 2 h. The applications using these natural product essential oils in mosquito control are discussed.Entities:
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Year: 2006 PMID: 17067055 DOI: 10.2987/8756-971X(2006)22[515:ARALAO]2.0.CO;2
Source DB: PubMed Journal: J Am Mosq Control Assoc ISSN: 8756-971X Impact factor: 0.917