To provide a weed invasion preventing device capable of suitably responding to a site according to the present invention.SOLUTION: The weed invasion inhibiting tool 1 according to the present invention comprises a mesh member 2 for inhibiting invasion of weeds and a plurality of supporting members 3 for supporting the meshes 2, Section 4 and has a configuration 5 having a shaped portion 5 for shaping the net member 2 while supporting the mesh member 2 in an upper portion, it is possible to attach the mesh member 2 freely according to the site depending on the site, with a simple structure It can be freely laid out while shaping, effectively suppressing invasion of weeds.(FIG.
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