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Controlling Slugs and Snails in the Garden

by Stephanie Suesan Smith on October 24, 2010

Slugs and snails are attracted to a garden because there is lots of food to eat there.  The nicely manicured areas with healthy plants provide a banquet that is hard to find anywhere else.  However, it is not a banquet for them, at least not for long.

Snails and slugs feed primarily at night, so you do not usually see them.  You see the damage they do, however, in bites in the strawberries, tomatoes, and greens in your garden.  They also leave behind slime trails that look silvery in the light.

Dealing with these critters takes several steps.  These do not include the old copper based bait that kills pets, but do include some things that are lethal to the snails and slugs.  But first, you need to understand their biology to understand how to control them.

Snails lay masses of eggs on the undersides of plants or in the dirt.  When the young hatch, they start eating the plants immediately.  Snails hide during the day under rocks, logs, fallen leaves, and things of this nature so they do not dry out in the sun.  Slugs have a similar life cycle, just minus a shell.

To get rid of these pests, first eliminate as much of their hiding places as you can.  Remove plant debris, make sure your compost pile is at a distance from your garden, and remove rocks and logs from the garden.  Using drip irrigation can help as it leaves the snails without moisture without starving your plants for water.

If you can overcome the yuck factor, go out in the early part of the night and pick as many of these pests off your plants as possible.  Drop them in a jar of soapy water to drown.  If that is just too gross, move on to the next item.

The old beer baited trap works just fine.  Fill a tuna can with beer and set it in a hole so the edges of the can are a little below ground level.  The snails go for the beer, fall in, and drown.  You just empty the trap each morning and rebait it.  Commercial traps are available, as well.

Copper strips can be used to create a barrier.  It is believed that they create an electrical field that reacts with the slime of the snail and repels them.  Frankly, with the price of copper these days, no one can afford to do this.  Next tactic, please.

Slug bait is available.  The old slug bait, metaldehyde, is very poisonous to mammals as well as to slugs and should not be used.  The newer slug bait is made of iron tablets, which the slugs eat, and then they die.  It is not nearly as poisonous to mammals, although it certainly isn’t good for them.  So use the slug bait if you have to , but be careful of your dogs and cats if you do.  In the United States, the bait is sold as Sluggo® or Escar-Go® baits.  Be sure to follow label directions and spread the bait right after a rain or after watering because this is when snails are most active.  Do not place baits directly on the vegetables unless the label says that is an acceptable use.  Put around the vegetables instead.

Snails and slugs can do a lot of damage in a garden.  I generally take a live and let live attitude to critters, but not when they eat my food.  Hopefully, this article has helped you if you are having the same problem with snails and slugs and want to eradicate them.  Any questions?

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{ 7 comments… read them below or add one }

Patricia from lavenderuses October 24, 2010 at 7:50 am

Hi Stephanie

Very detailed post. lavender planted as a companion plant in a vegie patch keeps away the snails too.

Patricia Perth Australia
Patricia recently posted..Lavender Recipes-Flower Power in the KitchenMy Profile

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Stephanie Suesan Smith October 24, 2010 at 12:42 pm

Interesting. I know Marigolds planted around tomatoes help keep tomato pests away. I did not know lavender would help with snails.

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Ginny October 25, 2010 at 9:47 am

I think I’ll try the lavender technique! I’ve used beer traps and have had some success with them, but it doesn’t hurt to have more than one method!
Ginny recently posted..The star of the showMy Profile

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tabbycat October 26, 2010 at 4:42 am

Try using the Slug Bell to combat slugs and snails in the garden. It avoids having to spread pellets around and its attractive too with lots of different designs.

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Molly October 26, 2010 at 4:48 pm

Very good article about those nasty slugs.

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Louis Vuitton Wallets October 27, 2010 at 1:38 am

Slugs and snails slowly and steadily completely destroy the garden,first and foremost condition is to find and destroy the area where they hide themselves as said in the blog..

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Sarah November 17, 2010 at 3:50 pm

Thanks for the great tips! I really need to try this at my house.

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