Cedarwood Oil
Quick Facts
- Type
- Essential oil / Botanical
- Source
- Steam-distilled from wood of various cedar species (Juniperus, Cedrus)
- OMRI Listed
- Yes ✓
- Bee Safe
- Yes
- Pet Safe
- Yes
- Residual
- Moderate for an essential oil — 6-12 hours due to less volatile terpenes
- Best For
- Mosquito repellent. Slug deterrent. Indoor pest prevention. Pet-safe essential oil option.
What Is Cedarwood Oil?
Contains cedrol and thujopsene compounds that suffocate small insects by disrupting their respiratory function. Also acts as an antifeedant and repellent. Blocks octopamine in insects, disrupting movement, metabolism, and reproduction.
Source: Steam-distilled from wood of various cedar species (Juniperus, Cedrus)
What Pests Does Cedarwood Oil Kill?
Cedarwood Oil is effective against the following pests:
How to Apply Cedarwood Oil
Best for: Mosquito repellent. Slug deterrent. Indoor pest prevention. Pet-safe essential oil option.
Avoid for: Active pest infestations requiring knockdown.
Residual activity: Moderate for an essential oil — 6-12 hours due to less volatile terpenes
Safety Profile
| Category | Rating |
|---|---|
| Bee Safety | 🟢 Safe for bees |
| Pet Safety | 🟢 Safe for pets |
| Overall Rating | Safe — Safe for kids, pets, and bees when used as directed |
Why Isn't Cedarwood Oil Working?
If Cedarwood Oil isn't delivering results, check these common failure modes:
Low direct-kill potency — better as repellent than insecticide
Variable oil composition between cedar species
Oil quality varies dramatically between sources
DIY Cedarwood Oil Recipe
Mix 15-20 drops cedarwood oil + 1 teaspoon castile soap per quart of water. Use as perimeter spray or mosquito repellent.
Best Cedarwood Oil Products
Wondercide Cedar Spray
RTU SprayCedar-based flea and tick spray for yards
CedarCide Original
ConcentrateCedar oil concentrate for pest control