There is no such thing as a maintenance-free plant or landscape.
The Renegade Gardener (Don Engebretson)
Placing those plastic crates under my tomatoes to deter the slugs did not quite work as expected. The specimen on the right was attacked, but the slug only ate the skin, which is a good thing because the skin of those tomatoes is rather hard and not very edible. So I thanked the slug and have eaten that tomato fruit. However, I have provided some—bio—slug repellent as dietary supplement.;-)