Gardener treating roses in the garden with a garden sprayer from insect pests
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How To Use Epsom Salt To Keep Slugs Out Of Your Garden
Containing micronutrients
like sulfur and magnesium, Epsom salt can be used in its dry natural state as a barrier or as a foliar solution to ward off the slugs in your garden.
To make a saline spray, mix one tablespoon of Epsom salt with a gallon of water. Use warm water to ensure that the Epsom salts have completely dissolved.
Apply the solution with a pump sprayer, spraying directly onto slugs, and let Epsom salt's dehydrating power send these soft-bodied mollusks to their demise.
You can also sprinkle dry Epsom salt in a narrow strip around your plants. The salt's scratchy texture and dehydrating properties will damage the slug's sensitive skin and kill it.