Metaldehyde is a natural compound which is used as a pesticide for killing snails, slugs and other gastropods. It is highly effective, however it is also toxic, so it should not be used in home gardens where pets such as cats or dogs are allowed to roam freely, or where it runs the risk of being consumed by small children., Iron phosphate is a molluscicide used for killing slugs and snails. It is the main ingredient in commercial slug repellents (such as Sluggo Plus) and as it is only harmful to slugs and snails, it is a much better option for people with children and pets., Crush garlic and mix with water. Leave for a few hours to allow the garlic to "marinate". Add to a water spray can and spray your flowers, plants and herbs for a natural slug and snail repellent.
Use metaldehyde.
Use iron phosphate.
Make garlic spray.
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