Organic Roach Control: Indoor and Outdoor Strategies

Indoor: Non-Toxic Elimination

• Boric acid powder: Apply in cracks, under appliances. Desiccates roaches.
• Roach motels (glue traps): Place along walls, in cabinets.
• Vacuum thoroughly: Remove eggs, droppings, nests. Empty vacuum immediately.
• Beneficial nematodes (Steinernema spp.): Apply to soil around foundation—parasitize roach larvae.

Outdoor: Habitat Management

• Cedar bark mulch: 3-inch band around foundation repels roaches, ants, termites.
• Orange peels: Chopped, scattered in spring—fire ants and roaches flee.
• Encourage predators: Toads, lizards, birds, geckos (in warm zones) eat roaches.
• Metarhizium anisopliae: Fungal biopesticide registered for roach control.

Indoor Repellents (Safe for Allergic Households)

• Fresh rosemary sprigs under sinks, appliances, in cabinets.
• Cedar oil painted on closet rods, baseboards, door frames.
• Catnip and basil—reported to repel fleas and roaches.

Identify the Species

German, American, Oriental, etc.—control varies. Check DoMyOwnPestControl.com or consult an entomologist for targeted advice.