Repellent properties of various essential oils and synthetic and natural products against Culicoides nubeculosus and C. obsoletus (Diptera: Ceratopogonidae), vectors of Orbivirus
Control of animal arbovirus transmission by Culicoides biting midges vectors is almost exclusively performed using pour-on pyrethroid insecticides on ruminants. Alternative strategies to synthetic insecticides, such as repellent essential oils, should be developed. Biting midges were exposed to various essential oils (geranium, lavender, lemongrass, lemon-eucalyptus, peppermint, tea tree), other natural (Neem) or synthetic (DEET) repellents, and deltamethrin diluted in ethanol. The tests were performed by applying the products to the membrane of an artificial blood-feeding unit (Hemotek) for laboratoryreared C. nubeculosus and a sugar solution for C. obsoletus, due to unsuccessful engorgement on the feeding unit of wild caught individuals. Blood-feeding on ethanol-treated control was about 70% for C. nubeculosus. Immediately following application, DEET at 5 and 20%, lemongrass (Cymbopogon citratus) and geranium (Pelargonium asperum) at 5% were consistently superior to the other products at repelling C. nubeculosus from blood-feeding. Two hours after application, the blood-feeding inhibition of most of the products declined sharply. DEET and deltamethrin caused significant mortality compared to the control. For field collected C. obsoletus, engorgement on sugar solution was variable but usually ranged from 40 to 50% for the control. DEET, lemongrass and geranium repelled 100% of the biting midges from sugar feeding for one hour. Mortality was significant for DEET, deltamethrin and lemongrass. The effective dose to protection was determined for lemongrass, geranium and deltamethrin. (Texte intégral)
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Subjects: | L72 - Organismes nuisibles des animaux, Q60 - Traitement des produits agricoles non alimentaires, |
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dig-cirad-fr-5661942018-12-26T17:04:45Z http://agritrop.cirad.fr/566194/ http://agritrop.cirad.fr/566194/ Repellent properties of various essential oils and synthetic and natural products against Culicoides nubeculosus and C. obsoletus (Diptera: Ceratopogonidae), vectors of Orbivirus. Lachance S., Baldet Thierry, Balenghien Thomas, Rakotoarivony Ignace, Lhoir Jonathan, Venail Roger, Garros Claire. 2012. In : E-sove 2012 : from biology to integrated control in a changing world. Abstract book. European Society for Vector Ecology, CIRAD, EID, IRD. Montpellier : European Society for Vector Ecology, Résumé, 188. Conférence E-SOVE. 18, Montpellier, France, 8 Octobre 2012/11 Octobre 2012. Researchers Repellent properties of various essential oils and synthetic and natural products against Culicoides nubeculosus and C. obsoletus (Diptera: Ceratopogonidae), vectors of Orbivirus Lachance, S. Baldet, Thierry Balenghien, Thomas Rakotoarivony, Ignace Lhoir, Jonathan Venail, Roger Garros, Claire eng 2012 European Society for Vector Ecology E-sove 2012 : from biology to integrated control in a changing world. Abstract book L72 - Organismes nuisibles des animaux Q60 - Traitement des produits agricoles non alimentaires Control of animal arbovirus transmission by Culicoides biting midges vectors is almost exclusively performed using pour-on pyrethroid insecticides on ruminants. Alternative strategies to synthetic insecticides, such as repellent essential oils, should be developed. Biting midges were exposed to various essential oils (geranium, lavender, lemongrass, lemon-eucalyptus, peppermint, tea tree), other natural (Neem) or synthetic (DEET) repellents, and deltamethrin diluted in ethanol. The tests were performed by applying the products to the membrane of an artificial blood-feeding unit (Hemotek) for laboratoryreared C. nubeculosus and a sugar solution for C. obsoletus, due to unsuccessful engorgement on the feeding unit of wild caught individuals. Blood-feeding on ethanol-treated control was about 70% for C. nubeculosus. Immediately following application, DEET at 5 and 20%, lemongrass (Cymbopogon citratus) and geranium (Pelargonium asperum) at 5% were consistently superior to the other products at repelling C. nubeculosus from blood-feeding. Two hours after application, the blood-feeding inhibition of most of the products declined sharply. DEET and deltamethrin caused significant mortality compared to the control. For field collected C. obsoletus, engorgement on sugar solution was variable but usually ranged from 40 to 50% for the control. DEET, lemongrass and geranium repelled 100% of the biting midges from sugar feeding for one hour. Mortality was significant for DEET, deltamethrin and lemongrass. The effective dose to protection was determined for lemongrass, geranium and deltamethrin. (Texte intégral) conference_item info:eu-repo/semantics/conferenceObject Conference info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/566194/1/document_566194.pdf application/pdf Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html http://agritrop.cirad.fr/566122/ |
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L72 - Organismes nuisibles des animaux Q60 - Traitement des produits agricoles non alimentaires L72 - Organismes nuisibles des animaux Q60 - Traitement des produits agricoles non alimentaires Lachance, S. Baldet, Thierry Balenghien, Thomas Rakotoarivony, Ignace Lhoir, Jonathan Venail, Roger Garros, Claire Repellent properties of various essential oils and synthetic and natural products against Culicoides nubeculosus and C. obsoletus (Diptera: Ceratopogonidae), vectors of Orbivirus |
description |
Control of animal arbovirus transmission by Culicoides biting midges vectors is almost exclusively performed using pour-on pyrethroid insecticides on ruminants. Alternative strategies to synthetic insecticides, such as repellent essential oils, should be developed. Biting midges were exposed to various essential oils (geranium, lavender, lemongrass, lemon-eucalyptus, peppermint, tea tree), other natural (Neem) or synthetic (DEET) repellents, and deltamethrin diluted in ethanol. The tests were performed by applying the products to the membrane of an artificial blood-feeding unit (Hemotek) for laboratoryreared C. nubeculosus and a sugar solution for C. obsoletus, due to unsuccessful engorgement on the feeding unit of wild caught individuals. Blood-feeding on ethanol-treated control was about 70% for C. nubeculosus. Immediately following application, DEET at 5 and 20%, lemongrass (Cymbopogon citratus) and geranium (Pelargonium asperum) at 5% were consistently superior to the other products at repelling C. nubeculosus from blood-feeding. Two hours after application, the blood-feeding inhibition of most of the products declined sharply. DEET and deltamethrin caused significant mortality compared to the control. For field collected C. obsoletus, engorgement on sugar solution was variable but usually ranged from 40 to 50% for the control. DEET, lemongrass and geranium repelled 100% of the biting midges from sugar feeding for one hour. Mortality was significant for DEET, deltamethrin and lemongrass. The effective dose to protection was determined for lemongrass, geranium and deltamethrin. (Texte intégral) |
format |
conference_item |
topic_facet |
L72 - Organismes nuisibles des animaux Q60 - Traitement des produits agricoles non alimentaires |
author |
Lachance, S. Baldet, Thierry Balenghien, Thomas Rakotoarivony, Ignace Lhoir, Jonathan Venail, Roger Garros, Claire |
author_facet |
Lachance, S. Baldet, Thierry Balenghien, Thomas Rakotoarivony, Ignace Lhoir, Jonathan Venail, Roger Garros, Claire |
author_sort |
Lachance, S. |
title |
Repellent properties of various essential oils and synthetic and natural products against Culicoides nubeculosus and C. obsoletus (Diptera: Ceratopogonidae), vectors of Orbivirus |
title_short |
Repellent properties of various essential oils and synthetic and natural products against Culicoides nubeculosus and C. obsoletus (Diptera: Ceratopogonidae), vectors of Orbivirus |
title_full |
Repellent properties of various essential oils and synthetic and natural products against Culicoides nubeculosus and C. obsoletus (Diptera: Ceratopogonidae), vectors of Orbivirus |
title_fullStr |
Repellent properties of various essential oils and synthetic and natural products against Culicoides nubeculosus and C. obsoletus (Diptera: Ceratopogonidae), vectors of Orbivirus |
title_full_unstemmed |
Repellent properties of various essential oils and synthetic and natural products against Culicoides nubeculosus and C. obsoletus (Diptera: Ceratopogonidae), vectors of Orbivirus |
title_sort |
repellent properties of various essential oils and synthetic and natural products against culicoides nubeculosus and c. obsoletus (diptera: ceratopogonidae), vectors of orbivirus |
publisher |
European Society for Vector Ecology |
url |
http://agritrop.cirad.fr/566194/ http://agritrop.cirad.fr/566194/1/document_566194.pdf |
work_keys_str_mv |
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