Safe, Organic Slug and Snail Control for Vegetable Gardens

Diatomaceous earth (DE) is often recommended for slugs, but products like Safer Brand Ant & Crawling Insect Killer contain only 77% DE plus 23% undisclosed "patented baits"—not ideal for food gardens.

Better Organic Options: Iron Phosphate Baits

Iron phosphate products (Sluggo, Escar-Go) are OMRI-listed for organic gardening. They attract slugs and snails, which consume the bait, stop feeding, and die within days. They are safe around pets, wildlife, and edible crops, and break down into soil nutrients.

How DE Works (and Its Limits)

DE is abrasive fossilized diatoms that cut slug bodies, causing dehydration. It must stay dry to work—rain or irrigation renders it ineffective. It's better suited for ants and other crawling insects in dry areas.

Integrated Approach

• Apply iron phosphate bait in the evening (when slugs are active) around plant bases.
• Remove daytime hiding spots: boards, dense mulch, weeds.
• Water in the morning so foliage dries by night.
• Hand-pick slugs at night with a flashlight; drop into soapy water.
• Copper tape barriers on raised beds deter slugs via mild electric shock.

For broccoli and other brassicas, iron phosphate baits are the safest, most reliable organic choice.