I see so many people saying use salt. "Don't" use salt! It's bad for the PH in the soil and you will not be able to grow anything there. Others suggest beer and who knows what else. Sure those options may work if you have a "few" snails or slugs around like on a patio, but if you have a garden, yard, greenhouse, etc. then you have more than a few and need a better solution. You have to stay on top of getting dead leaves raked up and moved and try not to have much ground cover plants around (like ivy). Those two things alone will make a huge difference in the snail population.
Anyways now for the secret. I have tried it all bait, pellets, beer, coffee and it's all bologna.
What you need is diatomaceous earth (DE). "DE is a white powder made from the fossilized remains of diatoms, one-celled algae that have a skeleton made of silicon", Gillman says. "To a slithering slug, this lethal powder is extremely sharp and cuts their undersides, causing dehydration." DE does have to be replenished each time it rains, making it a better choice for climates where it does not rain frequently. (Note: Buy only untreated diatomaceous earth formulated for garden use, and wear a dust mask when applying it. DE made for swimming pools is chemically altered and not suitable for use in any garden, much less an organic one.) Yes, also this is an organic way of dealing with pesky snails and slugs alike.
Source: Organic Gardening website
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My best success in fighting slugs has been making a two week commitment in early spring. I use a bucket of soapy water and some rubber gloves. Every evening at dusk I go around the yard gathering slugs and dropping them in the bucket.
Slugs are strongly attracted to moist, used corn cobs. Place them in a shady spot near where you have a slug problem and in the morning you can either salt them or collect and dispose of them.
Are you having trouble deciding what to do to kill the slugs on your okra, bell pepper plants, and flowers. I was having a huge problem and tried a few things. Well, here is the best, quickest, cheapest solution.
This is a page about keeping slugs out of your garden. If you live where slugs are prevalent you know the destruction they can cause. They can quickly consume plants and ruin your garden.
By setting out shallow bowls filled with beer you can control slugs in your garden without the use of pesticides. This is a page about use beer to prevent slugs.
Used in the proper proportion ammonia to water, many gardeners have had success in controlling slugs by spraying with this mixture. This is a page about using ammonia for slug control.