Progress and Challenges in Building Monitoring Systems for Drosophila suzukii

After the introduction of an invasive species is confirmed in a new area, the next step in mitigation and management step is surveying to determine the range and extent of spread. Determining which monitoring methods are most effective and efficient is essential to determining range and spread, and research efforts at the onset of a biological invasive often focus on developing these technologies. This was certainly the case for Drosophila suzukii. A substantial amount of research in the early stages of the D. suzukii invasion into North America, and Europe focused on the design of monitoring traps and the identification of attractants. Later efforts shifting to interpreting monitoring data in the context of population estimation and crop risk. In this chapter, we review the current state of knowledge surrounding adult and larval D. suzukii monitoring methods, and how data generated using these methods can be applied to research and management questions.