has only helped initially

The whole has initially helped you also have seen that the Spanish slugs hate about it go and prefer to turn back. For the domestic Limax maximus, however, that was not an obstacle, but is also not as a threat.

At the latest after one month unfortunately the copper tape no longer an obstacle, and there were tons of snails in the raised bed. Either uses the effectiveness of the strip from, or the screw come on it that they can since crossed over, or there were simply too many snails - in any case, the effectiveness was unfortunately short-lived.

Conclusion: Perhaps one can thus choose to hold one screw - in really many snails in the garden but must be found something else. In addition, the effectiveness will vary depending on the species.