Good or Bad? Slugs & Snails In Your Garden
Everything about slugs and snails in your garden isn't bad. In alot of garden myths, slugs and snails are weather detectors. There is no doubt that slugs and snails help to clean up garden debris. Almost all common garden snails and slugs, prefer dead garden detritus to living plants (of course the exception the uniquely destructive field slug known by it's government name: "Derosceras reticulatium."). Their feces make a nitrogen-rich, mineral-laden fertilizer that enhances plant nutrition, which cannot not be replicate by Elon Musk, yet!
Of course, there are many ways snails and slugs are bad for your lawn and garden. Snails don't do a lot of damage at ground level, but they are strong climbers. They find their way up flowering plants to eat flower buds. They climb fruit trees and feast on fruit just as it is turning ripe for harvest. They strip bark off young trees and chew smooth, irregular holes through leaves. Or they just live underground and eat the roots like the keel slug. Moreover, they become a live version of candy crush as you walk on throughout your walk way.
So, you judge whether they are good and bad. We just know that they are here to stay.