Figure 3
From: Spatial repellents: from discovery and development to evidence-based validation
An outdoor role for spatial repellents? Mathematical models show that the best strategy for application of spatial repellents depends on the vector. Indoors and outdoors use is best for those vectors least susceptible to LLINs/IRS, while use of spatial repellents outdoors is best to complement LLINs/IRS in areas where vectors feed indoors on humans (Killeen, GF and Moore, SJ with permission).