The combination of glue board traps, swinging or multi catch traps with Magnet Gel allows detecting, monitoring and capturing any kind of rodent entering the premises to be protected. Place Magnet Gel on the central part of the glue board of the trap regardless if it is a glue board, swinging trap or multi-catch trap, at a dose of approximately 20 grams. Preferably, the traps should be placed at a minimum distance of 5 meters between them.