The present invention deals with the identification of beneficial insects and/or harmful organisms in a field for crop plants. The presence of a species in the field is captured using one or more sensors. One or more proposals with regard to which species it might be are generated The particular probability of the detected species being a proposed species is calculated on the basis of one or more models. The location at which the species is detected, the detection time and preferably further parameters which influence the presence of the proposed species in the field are included in a model. The significance of the sensor(s) is increased by means of the modelling.
