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Larvicidal potential of selected indigenous lichens against three mosquito species–Culex quinquefasciatus, Aedes aegypti and Anopheles stephensi

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Chinese Herbal Medicines 2018年第2期10卷 152-156页

作者： Syed Zameer Ahmed Khader Sidhra Syed Zameer Ahmed kisore perundurai venkatesh Kamaraj Chinnaperumal Sanjeeva Nayaka Department of Biotechnology K.S.Rangasamy College of Technology Department of Biotechnology Periyar University Indian Lichenological Society Lichenology Laboratory Plant Diversity Systematics and Herbarium Division CSIR-National Botanical Research Institute (Govt. of India)

Objective：Mosquitoes are the major transmitting vectors of serious human diseases,causing millions of deaths every year with undesirable effects,including toxicity to non-target *** plants with insecticidal properties have been used in recent years for the control of a variety of pest insects and *** the quest for alternative natural biological control agents against mosquito larvae lichens were ***：Larvicidal activity was assessed with methanolic extracts of Parmotrema reticulatum,Parmotrema kamatti,Parmotrema tinctorum,Parmelia erumpens,Leptogium papilosum,and Roccella montagnei against Aedes aegypti,Anopheles stephensi,and Culex *** standard WHO protocols with minor modifications were adopted and the bioassay was evaluated at the concentrations of 100–500μg/m L for each *** all the lichen extracts showed complete mortality against *** in100μg/m L,the concentrations were decreased to 100,50,25,12.5,and 6.25μg/m L for *** mortality was observed for 24 h after ***：All the lichen extracts exhibited activity against third instar larvae of *** and *** at 100μg/m L,and 100%mortality was observed against the vector *** at 100μg/m *** highest larvicidal activity was found with *** against ***（81.127μg/m L）and ***（89.10μg/m L）.Similarly,*** and *** when tested against *** with minimum concentration〈100μg/m L exhibited significant activity withof 5.32and 6.97μg/m ***：The bioassay results revealed larvicidal potential of lichens especially against *** with high mortality even at lower ***,lichens can be used as an ideal sustainable approach for the control of lymphatic filariasis caused by vector ***.

关键词： larvicidal lichen mortality mosquito vectors

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