Device for holding a bait, in particular a bait for pests, preferably for rodents, comprising: - a housing part, in particular insertable into a part of a sewerage system with a receiving space for receiving a bait, - a detection device which is arranged to detect a first piece of information, characterized by - a control device, which is set up for further processing of first information detected by means of the detection device in order to generate second information, - an output device which is set up to output a first information item detected by means of the detection device and to output a second information item generated by means of the control device, wherein said first information is bait information describing at least one bait parameter of a bait and/or pest information describing at least one pest parameter of a pest, and the second information is user information generated on the basis of detected bait information and/or detected pest information, wherein the user information is bait delivery information describing a qualitative and/or quantitative instruction or recommendation directed to a user to deliver a bait into the housing part-side receiving space, wherein the bait delivery information gives an instruction or recommendation to a user as to which bait he should appropriately deliver to the device in order to prevent the development of resistance of a pest to a particular bait, and/or the user information is pest resistance information which describes a current and/or future potential of the development of resistances of a pest to a specific bait, which may already have been given once or several times in the past. - a housing part, in particular insertable into a part of a sewerage system with a receiving space for receiving a bait, - a detection device which is arranged to detect a first piece of information, characterized by - a control device, which is set up for further processing of first information detected by means of the detection device in order to generate second information, - an output device which is set up to output a first information item detected by means of the detection device and to output a second information item generated by means of the control device, wherein said first information is bait information describing at least one bait parameter of a bait and/or pest information describing at least one pest parameter of a pest, and the second information is user information generated on the basis of detected bait information and/or detected pest information, wherein the user information is bait delivery information describing a qualitative and/or quantitative instruction or recommendation directed to a user to deliver a bait into the housing part-side receiving space, wherein the bait delivery information gives an instruction or recommendation to a user as to which bait he should appropriately deliver to the device in order to prevent the development of resistance of a pest to a particular bait, and/or the user information is pest resistance information which describes a current and/or future potential of the development of resistances of a pest to a specific bait, which may already have been given once or several times in the past. said first information is bait information describing at least one bait parameter of a bait and/or pest information describing at least one pest parameter of a pest, and the second information is user information generated on the basis of detected bait information and/or detected pest information, wherein the user information is bait delivery information describing a qualitative and/or quantitative instruction or recommendation directed to a user to deliver a bait into the housing part-side receiving space, wherein the bait delivery information gives an instruction or recommendation to a user as to which bait he should appropriately deliver to the device in order to prevent the development of resistance of a pest to a particular bait, and/or the user information is pest resistance information which describes a current and/or future potential of the development of resistances of a pest to a specific bait, which may already have been given once or several times in the past.