KK Brisco, CM Jacobsen, S Seok, X Wang, Y Lee, OS Akbari, AJ Cornel
J Med Entomol 60: 364–372, https://doi.org/10.1093/jme/tjad005
Abstract [condensed]: Our In2Care trial was performed in the coastal settlement of Miloli’i in the southwest of Big Island where both Ae. aegypti and Ae. albopictus are found. This trial from Jul – Oct 2019 fell within the traditional wet season. No significant reduction in egg or adult counts were observed following 12 wk of two In2Care trap placements per participating household. In fact, an increase in adults during the trial required the local mosquito abatement program to stop the In2Care trap trial and institute a thorough source reduction and treatment campaign. The source reduction campaign revealed that a large variety and quantity of water sources competed with the oviposition cups that we had placed, which likely lowered the chances of our oviposition cups being visited by pyriproxyfen-contaminated Aedes adults exiting the In2Care traps.
Note: This report indicates that abundant alternative oviposition sites can compromise control that focuses on oviposition behavior.
[submitted by the Vector and VectorBorne Disease committee].