Esbiothrin-impregnated ropes as mosquito repellent
Ansari, M.A.; Sharma, V.P.; Razdan, R.K.
Indian Journal of Malariology 29(4): 203-210
1992
ISSN/ISBN: 0367-8326 PMID: 1291341 Document Number: 401410
Esbiothrin ((+-)-3-allyl-2-methyl-4-oxocylopent-2-enyl-(+)-trans-chrysanthemate) is an improved isomeric composition of allethrin series and consists essentially of esters of chrysanthemic acid and allethrolone. Jute rope was impregnated with esbiothrin and the smoke from smouldering ropes was evaluated as mosquito repellent in human dwellings and cattlesheds with open doors and windows at different dosages. Esbiothrin-impregnated (500ppm) ropes prevented the entry of more than 95% Anopheles culicifacies and other anophelines, 90.9-88.8% Culex quinquefasciatus and 96-95.1% total mosquitoes in open rooms of houses and cattlesheds respectively. The impact of ropes was more pronounced on the biting rate of mosquitoes. Indoors and outdoors human baits seated at a distance of about 3 m from smouldering esbiothrin ropes experienced no bite at all from An. culicifacies. An iron mesh around the rope prevents fire harards.