Organic Slug Control for Vegetable Gardens

Severe slug infestation in a second-year vegetable garden; beer traps and salt are ineffective. Coffee grounds work for ornamentals but flavor vegetables.

Biological Control (Not Yet Available in US)

Phasmarhabditis hermaphrodita nematodes (sold as "Nemaslug" in UK) effectively control slugs. Cornell University confirms efficacy. Not commercially available in US yet.

Current Best Options

• Diatomaceous earth: Abrasive powder damages slug bodies; reapply after rain
• Copper tape barriers: Electric shock deters slugs; protect raised beds/containers
• Avoid decollate snails: They eat slugs but also devour vegetables, flowers, and foliage

Cultural Practices

Reduce hiding places (boards, dense mulch), water in morning so soil surface dries by night, and encourage natural predators (birds, toads, ground beetles) with habitat diversity.