How to Get Rid of Slugs and Snails

Updated on April 15, 2019
OldRoses profile image

Caren White is a Master Gardener and instructor at Home Gardeners School. She has been associated with Rutgers Gardens for over a decade.

Snail | Source

If your garden has slimy trails and your plants have holes in their leaves, you've got slugs or snails. You probably won't see them in action. They are active mostly at night. Getting rid of them is fairly easy.

Know your enemy!

Slugs and snails are mollusks, related to octopus, squids, clams and oysters. They belong to a sub-group of mollusks called gastropods which includes snails, conch and abalone. Slugs are similar to snails but without external shells. They move using a "foot" which is a thick muscle that secretes mucus to help the slug move through your garden.

Both slugs and snails are hermaphrodites. They contain both male and female reproductive organs so they don't need to mate. Depending on the species, slugs reach maturity at 3 to 6 months and start laying eggs in batches of 30 to 40 in protected areas underneath leaves or in cracks in the soil. Snails mature in 2 years and lay an average of 80 eggs up to 6 times per year.

Slug | Source

No place to hide

The best thing you can do to rid your garden of slugs and snails is to clean it up. Both mollusks are active at night and during cool, overcast days. They avoid the sun and heat, hiding under leaves and garden debris. Cleaning out all the leaves and debris in your garden robs them of places to hide during the day. If they can't safely hide, they will move on to a more hospitable garden.

Use Baits

It's best to use an organic bait containing iron phosphate which is iron and phosphate combined with oxygen and is used in fertilizers. The slugs and snails eat it and die within a few days. You will see immediate improvement in your plants because they stop eating after consuming the bait. They will hide away to die so you won't see a lot of dead bodies in your garden. Any unused bait will decompose in your garden and act as a fertilizer. This bait is safe for children and pets.

Another type of bait, containing metaldehyde, is NOT safe for children and pets and is not recommended.

Create Barriers

Copper is a common barrier used to keep slugs and snails out of gardens. The metal reacts with their nervous systems giving them the feeling of an electric shock. You can place flat bands of copper along the top edges of your raised beds or around your plants. If you are using an upright copper barrier, be sure that it is wide enough to be buried at least 2 inches in the ground to prevent slugs and snails from going under it.

You will often see diatomaceous earth recommended as a good barrier. It is made up of the skeletons of diatoms that lived in ancient seas that dried up eons ago. The skeletons are ground into a white powder that has sharp edges that will tear up the underside of slugs and snails that crawl on it, killing them. While it is effective, I have two objections to it. First, because it is mined, it is not a renewable resource. And secondly, it is very expensive.

My preferred substitute is eggshells. If you are not already using them in your compost, you can crush them and put them around your plants. The sharp pieces of shell injure and kill slugs and snails as effectively as diatomaceous earth without the cost. Plus they are biodegradable, adding needed calcium to your garden soil.

Try Traps

Trapping slugs and snails is easy. Simply use a board, an empty flower pot or citrus rinds. Prop them up approximately an inch off the ground. Slugs and snails will hide underneath them during the day. You just take up the trap, scrape the mollusks off into the garbage (or your composter) and then replace them to trap some more.

I'm seeing a lot of "experts" on the internet advising against beer traps. Beer traps have always been successful for me. You take small containers such as bowls, bury them in your garden up to the rim and then fill them with beer. The smell of the beer attracts slugs and snails. They crawl in and drown. I just empty mine out into my composter each day and rebury and refill for the night. I've trapped up to a dozen slugs per bowl per night.

Pick Your Own

If you have the time and patience, you can pick slugs and snails in your garden. During the day, you will hunt for them under leaves and other garden debris. At night, you want to use a flashlight to pick them off your plants. If the "ick" factor is too much, wear gloves or use tongs to pick them up. You can either bag them or squish them or both and dispose of them in your garbage or composter.

Poultry Snacks

Poultry such as chickens, ducks and geese love to eat slugs and snails. If you raise poultry, or have a neighbor who is willing to lend you their poultry for a few hours in the evening, you can set up a temporary pen around your garden and allow them to help themselves to an evening snack.

An infestation of slugs and snails can destroy your garden. There are some simple, organic methods of getting rid of them.

Questions & Answers

© 2014 Caren White


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    • OldRoses profile imageAUTHOR

      Caren White 

      5 years ago

      You are very lucky, Pawpaw. Glad you found my hub helpful. Thank you for reading and commenting.

    • Pawpawwrites profile image


      5 years ago from Kansas

      I guess we are pretty lucky, because we don't have much trouble with them around here. I'll know where to come if I ever do have them though.

    • OldRoses profile imageAUTHOR

      Caren White 

      5 years ago

      Hi Marie! Thanks for reading. I'm not familiar with the flour method of getting rid of slugs. How does it work?

    • Marie Flint profile image

      Marie Flint 

      5 years ago from Tawas City, Michigan USA

      New to Florida, I'm having trouble with something eating my chard and the leaves of amaranth and sunflowers. (I think it's a flying insect.) I remember the flour method of getting rid of slugs.

    • OldRoses profile imageAUTHOR

      Caren White 

      5 years ago

      Moonlake, you're welcome. If you are plagued with slugs this year, I hope some of my suggestions will help. thanks for reading and voting.

    • moonlake profile image


      5 years ago from America

      We were over run by slugs last year hope it won't happen this year. Thanks for all the information. Voted up.

    • OldRoses profile imageAUTHOR

      Caren White 

      5 years ago

      You're welcome! I wish it was so easy to get rid of all the pests in my garden. Thanks for reading.

    • The Dirt Farmer profile image

      Jill Spencer 

      5 years ago from United States

      Thanks for the tips, Old Roses!


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