PROBLEM TO BE SOLVED: To identify a cultured plant to be trimmed from cultured plants in a facility.SOLUTION: A management device 1 includes: a trimming information storage section 111 in which the kind of a cultured plant, the size of a cultured plant, and a trimming necessary/unnecessary flag indicating the necessity/non-necessity of trimming a cultured plant are associated with one another and are stored as trimming information a facility information storage section 112 in which the kind and the size of a cultured plant placed in a facility are associated with each other and stored a selection section 121 which selects a facility and a determination section 122 which determines the necessity/non-necessity of trimming the cultured plant based on the kind and the size of the cultured plant placed in the selected facility and the trimming information.SELECTED DRAWING: Figure 2
