The Q&A Archives: Silica Sand

Question: How can I get a hold of silica sand from a quarry here in California? I understand it is an alternative to snail bait.

Answer: You're looking for Diatomaceous Earth, a silica-type product, made from the finely ground fossils of aquatic diatoms. It's a long-lasting product that you can safely use in your garden to control snails and slugs. Diatomaceous Earth works best when it's dry, so plan on reapplying after a rain. It's available from Gardener's Supply, 128 Intervale Rd., Burlington, VT 05401 (Phone 800-863-1700) or from Gardens Alive, 5100 Schenley Pl., Lawrenceburg, IN 47025. (Phone 812-537-8650)

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