slug deterrent

[pacharan]

My grandmother used to eat her breakfast grapefruit and then put the empty skins dome up among her prize plants, both veg and flowers.

I have no idea what the fascination of grapefruit for slugs is though.

That's an interesting one. I start my day with a grapefruit so not short of grapefruit peel.

Just wondering if it would attract rats - you're not supposed to put any citrus on a compost heap as it attracts rats.

Maybe the rats ate her slugs after they polished off the fruit peel?