PROBLEM TO BE SOLVED: To provide a pruner that can perform the pruning of a tree and the reaping of weeds around the tree at the same time.SOLUTION: A pruner comprises a vehicle 10 with a power generator 20 mounted thereon, and pruning means 30 attached to the vehicle 10. The pruning means 30 includes pruning parts 33 and 36 that are driven by driving force from the power generator 20 and prune a tree T and a reaping part 38 that reaps weeds W around the tree T.