Absence of impact of aerial malathion treatment on Aedes aegypti during a dengue outbreak in Kingston, Jamaica.

Abstract

During an outbreak of dengue fever in Jamaica from October to December 1995, a study was carried out to determine the impact of aerial ultra-low volume malathion treatment on adult Aedes aegypti. This was done by monitoring oviposition rates of the vector in three urban communities in Kingston and by exposing caged mosquitoes both directly and indirectly to the aerial malathion treatment. The insecticide was delivered at a rate of 219 mL/ha between 7:10 a.m. and 8:45 a.m. The results of the study clearly showed that the insecticide application was ineffective in interfering with Aedes aegypti oviposition, and adult mosquitoes held in cages inside dwellings were largely unaffected. Consequently, this type of intervention seemed to have little significant impact in arresting or abating dengue transmission.

• Authors: T Castle, M Amador, S Rawlins, J P Figueroa, P Reiter
• Journal: Revista panamericana de salud publica = Pan American journal of public health (Rev Panam Salud Publica) Vol. 5 Issue 2 Pg. 100-5 (Feb 1999) ISSN: 1020-4989 [Print] United States
• PMID: 10079743 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Malathion

Topics

• Aedes
• Animals
• Dengue (epidemiology, prevention & control)
• Disease Outbreaks
• Disease Vectors
• Humans
• Jamaica (epidemiology)
• Malathion (pharmacology)