Journal of Global Infectious Diseases

GEOGRAPHIC MEDICINE
Year
: 2010  |  Volume : 2  |  Issue : 2  |  Page : 116--120

Field evaluation of the bio-efficacy of three pyrethroid based coils against wild populations of anthropophilic mosquitoes in Northern Tanzania


Shandala Msangi, Beda J Mwang'onde, Aneth M Mahande, Eliningaya J Kweka 
 Tropical Pesticides Research Institute, Division of Livestock and Human Disease Vector Control, P. O. Box 3024, Arusha, Tanzania

Correspondence Address:
Eliningaya J Kweka
Tropical Pesticides Research Institute, Division of Livestock and Human Disease Vector Control, P. O. Box 3024, Arusha
Tanzania

Aims: This study aims to assess the feeding inhibition and repellency effect of three brands of mosquito coils in experimental huts (East African design). Evaluated products were all pyrethroid-based mosquito coils - Kiboko; , Total; and Risasi; . Mosfly (0.1% D-allethrin) was a positive control. Indoor resting behavior, feeding inhibition and induced exophily were measured as responses of burnt coil smoke in huts. Materials and methods: Resting mosquitoes were collected inside the huts, in window traps and verandah traps using mechanical aspirators. Identified to species level and sex. Results: A total of 1460 mosquitoes were collected, 58.9% (n=860) were Anopheles gambiae s.l while 41.1% (n=600) Culex quinquefasciatus. Indoor resting mosquitoes in all treated huts were significantly reduced than in negative control (DF=4, F=18.6, P < 0.001). Species found to rest indoors were not statistical different between the positive control (Mosfly coil) and other three treated huts (DF=3, F=1.068, P=0.408). Cx.quinquefasciatus had significantly higher induced exophily in all treatments comparing to An.gambiae s.l (DF=1, F=5.34, P=0.050). Comparison between species (An.gambiae s.l and Cx. quinquefasciatus) for the feeding inhibition among treated huts was not statistically significant (DF=1, F=0.062, P=0.810). Conclusion: Introduction of several personal protection measures will be ideal to supplement the existing gap in reducing the man vector contacts hence lowering the disease transmission.


How to cite this article:
Msangi S, Mwang'onde BJ, Mahande AM, Kweka EJ. Field evaluation of the bio-efficacy of three pyrethroid based coils against wild populations of anthropophilic mosquitoes in Northern Tanzania.J Global Infect Dis 2010;2:116-120


How to cite this URL:
Msangi S, Mwang'onde BJ, Mahande AM, Kweka EJ. Field evaluation of the bio-efficacy of three pyrethroid based coils against wild populations of anthropophilic mosquitoes in Northern Tanzania. J Global Infect Dis [serial online] 2010 [cited 2019 Oct 17 ];2:116-120
Available from: http://www.jgid.org/article.asp?issn=0974-777X;year=2010;volume=2;issue=2;spage=116;epage=120;aulast=Msangi;type=0