Dengue Fever Research Today is a free monthly online journal that collates and summarizes the latest research about Dengue Fever, including details on symptoms, risk factors, diagnosis, treatment, prevention.

Efficacy of thermal fog application of deltacide, a synergized mixture of pyrethroids, against Aedes aegypti, the vector of dengue.

Mani TR, Arunachalam N, Rajendran R, Satyanarayana K, Dash AP

Centre for Research in Medical Entomology, Madurai, India. crmeicmr@icmr.org.in

We evaluated the efficacy of indoor and peridomestic thermal fog applications of deltacide, a synergized mixture of pyrethroids (S-bioallethrin 0.7% w/v, deltamethrin 0.5% w/v and piperonyl butoxide 8.9% w/v) against adult populations of Aedes aegypti in Chennai, Tamil Nadu, India. We bioassayed adult caged mosquitoes, counted indoor resting and human landing adult mosquitoes and assessed the percentage of potential breeding sites with Aedes larvae. The bioassay mortalities indicated that the knockdown and killing effect was greater when fogging was applied inside houses rather than around them. Peridomestic thermal fogging reduced the resting and biting populations by 76% and 40%, respectively for the 3 days after treatment, whereas indoor fogging suppressed adult populations for 5 days.

Published 19 December 2005 in Trop Med Int Health, 10(12): 1298-304.
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