Published March 24, 2023 | Version 1.0
Software Open

NoBaSURV-PWN - A tool for assessing the confidence in pest freedom gained in official pine wood nematode survey

  • 1. Finnish Food Authority


This is the source code for the web application ‘NoBaSURV-PWN’ that is available at

NoBaSURV-PWN is a tool for assessing the confidence in pest freedom gained in official pine wood nematode (PWN, Bursaphelenchus xylophilus) surveys. It can be used to assess 1) the confidence of each annual survey separately, and 2) the confidence accumulated in all annual surveys. NoBaSURV-PWN has been built based on quite a similar app, namely FinnSURV-Assess PWN.

To run the source code locally in your computer you need to:

  1. Install R from
  2. Save the files in in your working directory.
  3. Install R packages ‘shiny’, ‘shinythemes’, ‘shinyhelper’, ‘magrittr’ and ‘ggplot2’.
  4. Run the command runApp() in R.

NoBaSURV-PWN was developed in the Risk Assessment Unit of the Finnish Food Authority as part of a project 'Assessing the confidence in pest freedom gained in the past pine wood nematode surveys'. The project was a co-operation between the Finnish Food Authority, the Estonian Agriculture and Food Board (EAFB), the State Plant Service under the Ministry of Agriculture of the Republic of Lithuania (SPSMoA), the Norwegian Scientific Committee for Food and Environment (VKM), and the Swedish University of Agricultural Sciences (SLU), and it was co-funded by the European Food Safety Authority (EFSA) Partnering grant (GP/EFSA/ENCO/2020/03). However, NoBaSURV-PWN reflects only the author’s view, and EFSA is not responsible for any use that may be made of the information it contains.


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Additional details

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Is derived from
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