Fig. 1

Sites selected for treatment with a pyriproxyfen-boosted sterile insect technique to suppress populations of Aedes mosquitoes. Trials were implemented from March to July 2021 in La Reunion (site 1) (graphs a, c), and from June to October 2021 in the Valencia Region, Spain (graphs b, d, e). The white-border polygons around the traps were defined by a Voronoi tessellation of trap locations. The background maps in graphs a, b, c, d and e were retrieved from the Google Maps Platform https://mapsplatform.google.com/, using functions available in the ggmap package for R https://github.com/features/packages version 4.0.0, together with a private API key. The administrative borders were retrieved from GADM https://gadm.org/data.html version 4.1.