| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for preventing a plastic greenhouse from a harmful bird coming by flying with which a plastic sheet extended on the plastic greenhouse for agriculture is prevented from being broken through by a talon and a bill of a crow, a kite, a white heron, or the like, come by flying. SOLUTION: The harmful bird is sent off by hanging a threatening article 4 threatening the harmful bird from a hanging string 2 wound around stands 3 stood on the roof of the plastic greenhouse 1. The stand 3 comprises a body prop 5 and three leg parts 6 branched from the prop in a T-shape. A fixing tool 8 for holding a frame pipe 7 of the plastic greenhouse from above the plastic sheet is attached to the leg part 6 so as to be freely turnable. A slidable prop 9 is passed through the body prop 5 of the stand 3 so that the slidable prop 9 may be fixed at an arbitrary height by a set screw 10. COPYRIGHT: (C)2004,JPO&NCIPI
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