Evaluation of VectoMax FG application frequency for the control of Aedes albopictus and Culex species in urban catch basins: evidence from a randomised controlled trial

While Culex spp. responded well even at longer intervals, Ae. albopictus required more frequent treatment to avoid rebound. Our findings show effective (> 90%) suppression in both Ae. albopictus and Culex spp. when VectoMax FG was reapplied at 4-week intervals. Increased application frequency not only enhanced overall effectiveness but also reduced variability in mosquito abundance, contributing to more stable vector control.