Aedes mosquitoes are major vectors of human diseases, such as the dengue fever, chikungunya and yellow
fever. Their control largely relies on insecticides applied to mosquito larvae habitats, or indoors
against adult mosquitoes. However, insecticide resistance has evolved in many Aedes aegypti mosquito
populations worldwide and there is evidence that it has compromised the success of control interventions.
The levels of resistance in Aedes albopictus is relatively low at present compared to Ae. aegypti, possibly
due to the reduced exposure of this more exophilic species to insecticides, particularly those
targeting the adult stage. This paper reviews Ae. albopictus susceptibility/resistance status, as well as
reports some new bioassay data from European populations (Greece and Italy). The most recent molecular
research into Ae. aegypti insecticide resistance mechanisms is also reviewed, with emphasis on neurotoxic
insecticides.