Suppressing Aedes albopictus, an emerging vector of dengue and chikungunya viruses, by a novel combination of a monomolecular film and an insect-growth regulator

Mark Nelder, Banugopan Kesavaraju, Ary Farajollahi, Sean Healy, Isik Unlu, Taryn Crepeau, Ashok Ragavendran, Dina Fonseca, Randy Gaugler

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

The Asian tiger mosquito Aedes albopictus (Skuse) is rapidly increasing its global range and importance in transmission of Chikungunya and dengue viruses. We tested pellet formulations of a monomolecular film (Agnique) and (S)-methoprene (Altosid) under laboratory and field conditions. In the laboratory, Agnique provided 80% control for 20 days, whereas Altosid, in combination with Agnique, provided 80% control for > 60 days. During field trials, the 1:1 pellet ratio of combined products provided > 95% control for at least 32 days and 50% control for at least 50 days. Altosid remained effective after a 107-day laboratory-induced drought, suggesting that the product serves as a means of control during drought conditions and against spring broods in temperate regions. Agnique and Altosid, when used in tandem for cryptic, difficult-to-treat locations, can provide long-term control of Ae. albopictus larvae and pupae. The possible additive or synergistic effects of the combined products deserve further investigation.

Original languageEnglish (US)
Pages (from-to)831-837
Number of pages7
JournalAmerican Journal of Tropical Medicine and Hygiene
Volume82
Issue number5
DOIs
StatePublished - May 2010

All Science Journal Classification (ASJC) codes

  • Infectious Diseases
  • Virology
  • Parasitology

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