This is the source code for the web application ‘FinnSURV-Assess PWN’ that is available at http://finnsurv-assess-pwn.rahtiapp.fi. FinnSURV-Assess PWN is a tool for assessing the confidence in pest freedom gained in official pine wood nematode (PWN , Bursaphelenchus xylophilus) surveys in areas where PWN is not expected to cause symptoms. It can be used to assess both the sensitivity of annual surveys and the probability of freedom achieved in multiannual surveys. To run the source code locally in your computer you need to: Install R from https://www.r-project.org/. Save the files app.R and functions.R in your working directory. Install R package ‘shiny’ and load it with the command library(shiny). Run the command runApp() in R.

FI; en; R; salla.hannunen@foodauthority.fi