Repellent Activity of TRIG (N-N Diethyl Benzamide) against Man-Biting Mosquitoes

A study was conducted to assess efficacy of a new repellent brand TRIG (15% N-N Diethyl Benzamide) when compared to DEET (20% N-N Methyl Toluamide). The repellents were tested in laboratory and field. In the laboratory, the repellence was tested on human volunteers, by exposing their repellent-treat...

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Main Authors: Shandala Msangi, Eliningaya Kweka, Aneth Mahande
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Journal of Tropical Medicine
Online Access:http://dx.doi.org/10.1155/2018/9037616
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author Shandala Msangi
Eliningaya Kweka
Aneth Mahande
author_facet Shandala Msangi
Eliningaya Kweka
Aneth Mahande
author_sort Shandala Msangi
collection DOAJ
description A study was conducted to assess efficacy of a new repellent brand TRIG (15% N-N Diethyl Benzamide) when compared to DEET (20% N-N Methyl Toluamide). The repellents were tested in laboratory and field. In the laboratory, the repellence was tested on human volunteers, by exposing their repellent-treated arms on starved mosquitoes in cages for 3 minutes at hourly intervals, while counting the landing and probing attempts. Anopheles gambiae and Aedes aegypti mosquitoes were used. Field evaluation was conducted by Human Landing Catch technique. During the night, the repellents were applied on arms and legs and mosquitoes landing on these areas were collected. In laboratory tests, TRIG provided complete protection (100%) against Anopheles gambiae when applied at 1.25 g, while DEET provided this at 0.75 g. When tested on Aedes aegypti, TRIG provided complete protection when applied at 1 g, compared to 0.5 g for DEET. In the field, when applied at a recommended dose, both TRIG and DEET achieved above 90% protection against both An. arabiensis and Culex quinquefasciatus and a Complete Protection Time of about 6 hrs against both species of mosquitoes. The performances of the two products were found to be comparable and TRIG was recommended for use as repellent against mosquito bites.
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spelling doaj-art-1747287d541a4b1497353b4a2b7e5d7a2025-08-20T02:04:54ZengWileyJournal of Tropical Medicine1687-96861687-96942018-01-01201810.1155/2018/90376169037616Repellent Activity of TRIG (N-N Diethyl Benzamide) against Man-Biting MosquitoesShandala Msangi0Eliningaya Kweka1Aneth Mahande2Division of Livestock and Human Disease Vector Control, Tropical Pesticides Research Institute (TPRI), P.O. Box 3024, Arusha, TanzaniaDivision of Livestock and Human Disease Vector Control, Tropical Pesticides Research Institute (TPRI), P.O. Box 3024, Arusha, TanzaniaDivision of Livestock and Human Disease Vector Control, Tropical Pesticides Research Institute (TPRI), P.O. Box 3024, Arusha, TanzaniaA study was conducted to assess efficacy of a new repellent brand TRIG (15% N-N Diethyl Benzamide) when compared to DEET (20% N-N Methyl Toluamide). The repellents were tested in laboratory and field. In the laboratory, the repellence was tested on human volunteers, by exposing their repellent-treated arms on starved mosquitoes in cages for 3 minutes at hourly intervals, while counting the landing and probing attempts. Anopheles gambiae and Aedes aegypti mosquitoes were used. Field evaluation was conducted by Human Landing Catch technique. During the night, the repellents were applied on arms and legs and mosquitoes landing on these areas were collected. In laboratory tests, TRIG provided complete protection (100%) against Anopheles gambiae when applied at 1.25 g, while DEET provided this at 0.75 g. When tested on Aedes aegypti, TRIG provided complete protection when applied at 1 g, compared to 0.5 g for DEET. In the field, when applied at a recommended dose, both TRIG and DEET achieved above 90% protection against both An. arabiensis and Culex quinquefasciatus and a Complete Protection Time of about 6 hrs against both species of mosquitoes. The performances of the two products were found to be comparable and TRIG was recommended for use as repellent against mosquito bites.http://dx.doi.org/10.1155/2018/9037616
spellingShingle Shandala Msangi
Eliningaya Kweka
Aneth Mahande
Repellent Activity of TRIG (N-N Diethyl Benzamide) against Man-Biting Mosquitoes
Journal of Tropical Medicine
title Repellent Activity of TRIG (N-N Diethyl Benzamide) against Man-Biting Mosquitoes
title_full Repellent Activity of TRIG (N-N Diethyl Benzamide) against Man-Biting Mosquitoes
title_fullStr Repellent Activity of TRIG (N-N Diethyl Benzamide) against Man-Biting Mosquitoes
title_full_unstemmed Repellent Activity of TRIG (N-N Diethyl Benzamide) against Man-Biting Mosquitoes
title_short Repellent Activity of TRIG (N-N Diethyl Benzamide) against Man-Biting Mosquitoes
title_sort repellent activity of trig n n diethyl benzamide against man biting mosquitoes
url http://dx.doi.org/10.1155/2018/9037616
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AT anethmahande repellentactivityoftrignndiethylbenzamideagainstmanbitingmosquitoes