Fig. 8

Efficacy of boosted SIT in suppressing the Aedes albopictus population of adults in Vravrona (Attica, Greece) during a field trial from May to November 2023. Relative density (θ) of adults, i.e., density of adults collected with HLC in the treated site divided by the average density of adults in the control site during the same period. The white-border polygons were defined by a Voronoi tessellation of trap locations. The background maps 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.