Keeping leeches at bay Field evaluation of plant-derived extracts against terrestrial blood-sucking leeches (Haemadipsidae) in Lao PDR》.pdfVIP

Acta Tropica 119 (2011) 178–182 Contents lists available at ScienceDirect Acta Tropica j o u r n a l h o m ep a g e : w w w. elsev /locate / a c t atr o p ica Keeping leeches at bay: Field evaluation of plant-derived extracts against terrestrial blood-sucking leeches (Haemadipsidae) in Lao PDR Chanda Vongsombath a,b,∗ , Hugo J. de Boer a , Katinka Pålsson a,c a Department of Systematic Biology, Evolutionary Biology Centre (EBC), Uppsala University, Norbyvägen 18d, SE-752 36 Uppsala, Sweden b Department of Biology, Faculty of Science, National University of Laos (NUOL), Dongdok Campus, Vientiane, Lao People’s Democratic Republic c Ecological Chemistry Group, Department of Chemistry, School of Chemical Science and Engineering, Royal Institute of Technology, SE-100 44 Stockholm, Sweden a r t i c l e i n f o a b s t r a c t Article history: Terrestrial blood-sucking leeches (Haemadipsidae) are common in the damp forests of the subtropical Received 14 March 2011 and tropical Indo-Pacific region. Members of the genus Haemadipsa are abundant in Laos and adjacent Received in revised form 18 May 2011 countries of Southeast Asia, and discomfort to people and livestock. Plant-derived repellents against Accepted 29 May 2011 arthropods and leeches are common in Lao PDR, and have been used by Lao ethnic groups for generations. Available online 6 June 2011 Numerous studies have been conducted on the efficacy of traditional plant-derived repellents against