| Literature DB >> 19897309 |
Sara Fernandes Soares1, Lígia Miranda Ferreira Borges, Raquel de Sousa Braga, Lorena Lopes Ferreira, Carla Cristina Braz Louly, Leonice Manrique Faustino Tresvenzol, José Realino de Paula, Pedro Henrique Ferri.
Abstract
Repellence responses of Amblyomma cajennense nymphs to callicarpenal, intermedeol, Hyptis suaveolens essential oil, extract of Melia azedarach, Cymbopogon nardus, Spiranthera odoratissima, Chenopodium ambrosioides, Ageratum conyzoides, Mentha pulegium, Ruta graveolens, and Memora nodosa were studied. Among these the extract of C. nardus stood out because of the long-lasting repellence, maintaining, in the highest concentration, 35h of protection against 90% of the nymphs. The essential oil of H. suaveolens and the extracts of C. ambrosioides and A. conyzoides showed good repellence index (66%) when applied in high concentrations. However, greater protection could be obtained at higher concentrations but with a shorter repellence time. Callicarpenal, intermedeol, extract of M. Pulegium, and M. nodosa leaves showed moderate repellence in high concentrations. Extracts from M. azedarach, R. graveolens, S. odoratissima, and M. nodosa roots showed little or no repellent effect. These results show that some plant extracts may represent a promising alternative in the control of infestations by A. cajennense. Copyright 2009 Elsevier B.V. All rights reserved.Entities:
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Year: 2009 PMID： 19897309 DOI： 10.1016/j.vetpar.2009.09.047
Source DB: PubMed Journal: Vet Parasitol ISSN： 0304-4017 Impact factor: 2.738