Insect-borne diseases such as malaria or dengue represent a major public health concern, causing more than 700 000 deaths annually. Amongst the tools used to limit their spread, some involve the use of insecticides. Insecticide treated bed nets (ITNs) or indoor residual spraying, for instance, are two methods commonly used to fight malaria. Yet, the prolonged use of these interventions has caused insecticide-resistance to increase, as many insects have genetically adapted to become less susceptible to the chemicals. This reduces the efficacy of key vector-control interventions and threatens progress against these diseases.