Summary
Highlights
Tick populations are at record highs in North America, with Lyme disease cases tripling in 15 years. A new threat, Alpha-gal syndrome, caused by Lone Star tick bites, makes individuals allergic to red meat and dairy for life. A single female deer tick lays thousands of eggs, meaning spotting one tick indicates a larger presence. Ticks prefer leaf litter, shaded areas, and lawn edges, not short grass, making traditional lawn mowing ineffective.
Western red cedar contains compounds like thujone and plecatic acid that disrupt tick respiration, dehydrating and killing them upon contact. This mechanism works on all tick species and is well-known in the pest control industry, forming the basis of expensive professional treatments. Home solutions can replicate this for a fraction of the cost.
Wonderside, a cedar and sesame oil concentrate, is a convenient option. A 32-oz bottle costs around $29, covers 5,000 sq ft, and needs reapplication every 2-4 weeks. It's available at hardware stores, tractor supply, or online. Any cedar oil-based yard spray with cedarwood oil as the main ingredient will work similarly.
For a cheaper alternative, a homemade spray can be made with 1 tsp of cedarwood essential oil, 1 cup of distilled water, and 1 tbsp of witch hazel or unflavored vodka (as an emulsifier). A 4 oz bottle of cedarwood essential oil costs about $12 and makes over 16 batches, lasting an entire tick season. This mixture can be sprayed on perimeters, shoes, and pant legs, but never directly on cats. Reapply every 2 weeks or after heavy rain.
For a long-term solution, lay a 3-foot wide, 3-inch deep band of western red cedar chips (not dyed mulch) along property edges where the lawn meets natural areas. Ticks cannot cross this barrier due to the active compounds, leading to an 88% reduction in tick populations. This one-time investment costs roughly $150 for a quarter-acre property, with replenishment needed every 2-3 years. Arborists may even deliver free cedar chips from their job sites.
Ticks climb, not fall. They wait on grass tips and climb upwards on hosts, targeting areas between the ankle and waist. To prevent bites, wrap duct tape, sticky side out, around the top of each sock before entering tick-prone areas. Ticks attempting to climb will get stuck on the tape, preventing them from reaching the skin. This costs pennies and is 100% effective, especially when paired with cedar oil spray on clothing.