PROBLEM TO BE SOLVED: To provide a device for treating plant seedlings with which a treating agent comprising attenuated viruses can be uniformly and surely applied to plant seedlings raised in a cell-forming raising seedling tray through the skin of the leaves of the plant seedlings. SOLUTION: The device is so designed as to apply the treating agent to plant seedlings S raised in the cell-forming raising seedling tray 3 through the skin of the leaves 1. The device is provided with a supporting means 2 supporting the plant seedlings S under the leaves 1. The supporting means 2 has a pair of linear arm members 6, 6 holding stalks 5 of a plurality of the plant seedlings S set in line in the raising seedling tray 3 at intervals. The linear arm members 6, 6 are movable from one end side to another end side in a line direction while passing between the raising seedling tray 3 and the leaves of the plant seedlings S via a movement driving means. COPYRIGHT: (C)2005,JPO&NCIPI
