Unfortunately, far too thin as worm defense

Much too thin, so it must be repeatedly mounted side by side. Maybe it is also due to unsereren snails here, but this could be even unconnected discourage belt 3 rows of the plants. Next is unfortunately also the mounted on the underside adhesive not the strongest, so that adopted the copper strip in the next bushes after the first wind. Maybe it is also due to unsereren snails here, but this could also be not of 3 rows copper tape (with super glue additionally fixed) side by side hold of the plantlets.