German snails

Here is a lovely video on the diversity of snail species found in Austria. Explained in broad dialect, I managed to get the nuggets. Indigenous snails are very useful in the garden as indicators of ecosystem health, and decomposers in composting. As explained in other articles on greenidiom, most snails prefer to eat dead or dying material, not fresh green leaves. According to the mollusc expert in the video, only one exotic species presents a danger to the vegetable patch, the Spanish snail and even the Vineyard snail prefers dead material. The large spotted Tigerschnecke or Tiger slug (Limax maximus) hunts down and eats the invasive and damaging Spanish snails. Things may differ in different regions of the world. In my locality I combat the garden snail Helix aspersa with nets, or it destroys my seedlings time and again: https://www.youtube.com/watch?v=4byhHGvSFb0