Fig. 3

Efficacy of boosted SIT—with sterile male Aedes aegypti, in suppressing Aedes populations in La Reunion (site 1) during a field trial from March to July 2021. Relative density (\(\theta\))—fitted with a spatial Poisson model, and probability of success (\(P\left( \theta \le 0.20\right) \ge 0.95\)) for Aedes eggs (graphs a, b), for adult Aedes aegypti (c, d), and for adult Aedes albopictus (graphs e, f). The observed relative density was the density observed in the treated site (\(n=7\) traps/collection day), divided by the expected density, i.e., the average observed density in the control site (\(n=5\)). The probability of success was the proportion of traps in the treated site with a high probability (\(P \ge 0.95\)) that the actual relative density was 0.20 at the most.