FOCUSPEARL is a tool for assessment of leaching of plant protection products (PPPs) to groundwater and exposure of soil organisms in topsoil resulting from the use in arable crops. It is used in the Dutch and EU registration processes for PPPs.
Important message below:
Since 1 January 2026, runs with FOCUSPEARL4.4.4 are no longer possible. After clicking “Calculate”, runs will terminate immediately with the message:
“The current model version has expired at 31-Dec-2025. Please contact pearl@pesticidemodels.eu”.
We are aware of the issue and are working to resolve it as soon as possible.
Note that FOCUSPEARL5.5.5 is still working correctly.
