Within this project, large-scale drift measurements of biocidal applications with a high drift potential were carried out to evaluate the environmental impact and potential risk mitigation in more detail. These applications included, for example, the control of the oak processionary moth, the control of flying and crawling insects and the removal of algae on terraces and paths. Based on the results of the drift measurements, recommendations are given on values for the exposure assessment and drift mitigation of the respective products. An excursus includes a literature review of ultra-low volume devices that can be used for mosquito control.