Gardening

Laidback Gardener Tip of the Day

Warning: Eggshells Actually ATTRACT Slugs

juillet 23A very popular gardening myth claims that coarsely crushed eggshells are very sharp and that slugs would tear their bodies open trying to cross them. Therefore, by surrounding a plant susceptible to slug damage with a ring of eggshells, you can protect it, because no slug would dare try to cross such a barrier.

In reality, however, the slugs are covered with “slime” (mucus) precisely to protect against cuts on rough surfaces. This slime is so efficient they can even cross shards of glass without any damage. Several studies have been made about slugs and eggshell barriers and the conclusion is clear: slugs will cross an eggshell barrier as if it weren’t there and without suffering any damage whatsoever.

Until recently, though, it was simply thought that eggshell barriers were not effective. But it’s worse then that. Eggshells, unless thoroughly rinsed, give off an odor that will actually attracts slugs! So “eggshell barriers” are not only ineffective, they actually make things worse.

Here is a website where you can see the damage: www.allaboutslugs.com/eggshell-myth-busted/.

Garden writer and blogger, author of more than 60 gardening books, the laidback gardener, Larry Hodgson, lives and gardens in Quebec City, Canada. The Laidback Gardener blog offers more than 2,500 articles to passionate home gardeners, always with the goal of demystifying gardening and making it easier for even novice gardeners. If you have a gardening question, enter it in Search: the answer is probably already there!

1 comment on “Laidback Gardener Tip of the Day

  1. My worms in my compost love egg shells, so this makes total sense!

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