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Last Updated on 23/05/2025 by Tony Abrahams
Short answer? It’s Diatomaceous Earth—specifically when used as part of a complete, organic DIY system like the one offered by Bed Bug Barrier.
If you’re asking what is the best organic bed bug killer?, chances are you’re fed up with supermarket sprays, worried about poisons around your kids or pets, and desperately seeking a natural solution that actually works.
This blog will break it all down for you—what “organic” really means, which natural ingredients kill bed bugs, and how to get rid of them for good without calling pest control.

Best Organic Bed Bug Killer
🌱 What Does “Organic” Mean in Bed Bug Treatments?
When most people say “organic bed bug killer,” they mean:
- Non-toxic to people and pets
- Chemical-free (no synthetic insecticides)
- Environmentally friendly
- Safe to use around bedding and sleeping areas
But beware: not all products labelled “natural” or “eco” actually work. Some just mask the smell or repel bugs temporarily without killing them. Others require direct spray contact—useless if the bug is hiding behind the wall.
🔬 Which Organic Ingredients Actually Kill Bed Bugs?
Here’s a breakdown of the most common natural ingredients people try—and which ones actually kill:
Ingredient | Kills on Contact | Long-Term Kill | Safe for Pets | Notes |
Diatomaceous Earth | ❌ | ✅ | ✅ | Best for long-term kill; dries bugs out over time |
Neem Oil | ✅ | ❌ | 🚫 | May cause irritation in pets; oily residue |
Tea Tree Oil | ✅ | ❌ | 🚫 | Toxic to pets in high doses |
Clove & Peppermint Oil | ✅ | ❌ | ⚠️ | Repels more than it kills |
Heat (Steam) | ✅ | ❌ | ✅ | Excellent for instant kill if applied correctly |
👉 Winner: Diatomaceous Earth. It doesn’t just kill—it keeps killing. Bugs walk over it and die days later from dehydration. That’s why it’s the backbone of Bed Bug Barrier’s organic system.
🏆 Why Diatomaceous Earth Is the Best Organic Bed Bug Killer
Let’s be blunt: Diatomaceous Earth (DE) works because it’s simple. It’s made from fossilised aquatic algae with razor-sharp microscopic edges. Bed bugs walk through it, the DE slices into their waxy shells, and they dehydrate to death. No poison. No fumes. No mercy.
✅ Pros:
- Kills bed bugs, nymphs, and even some eggs over time
- Non-toxic to humans and pets (when food-grade)
- Long-lasting—remains active for years
- Insects can’t build resistance to it
❌ Cons:
- Doesn’t kill instantly
- Must be applied in dry areas—avoid wetting it
- Needs strategic placement to work (e.g., bed legs, baseboards, doorways)
💡 Tip: Use DE under bed bug tape under bed legs—like we do in the Bed Bug Barrier system. Bugs are forced to cross the tape and walk through the DE. It’s genius-level effective.

Diatomaceous Earth Dust
🧪 How Organic Solutions Compare to Chemical Treatments
Feature | Organic DIY (e.g., DE & steam) | Chemical Sprays | Pest Control Services |
Toxicity | ❌ Non-toxic | ⚠️ Moderate to high | ✅ Professional handling |
Reapplication Needed | ❌ One-time (DE stays active) | ✅ Every few weeks | ✅ Often multiple visits |
Kills Eggs? | ⚠️ Some (with steam) | ❌ Not usually | ✅ Yes (heat treatments) |
Long-Term Protection | ✅ Yes | ❌ No | ⚠️ Depends on service |
Cost (1-room treatment) | 💲 Affordable | 💸 Mid-range | 💰 Expensive ($500–$1,000) |
Verdict: Organic wins—if you know how to use it right.
🛠️ Best DIY Organic Bed Bug Products to Use at Home
Here’s your all-star team for organic bed bug elimination, all available from Bed Bug Barrier:
🟢 1. Diatomaceous Earth Powder
- Where to use: Around bed legs, skirting boards, base of the bed, and doorways
- How it works: Kills slowly but surely—bed bugs dry out and die
- How long it lasts: Years if undisturbed
🟢 2. High-Pressure Handheld Steamer
- Where to use: Mattress seams, ensemble bases, furniture, carpet edges
- How it works: Kills bugs and eggs instantly on contact with heat
🟢 3. Mattress & Base Covers
- Lock bugs in. Starve them. No more bites.
- Bonus: Helps you spot new infestations early
🟢 4. Bed Leg Barrier Traps (with DE)
- Force bugs to cross Diatomaceous Earth before they can reach you
- Simple physics = dead bugs
📋 How to Use Organic Bed Bug Killers (Step-by-Step)
Want a system that actually works? Follow this routine:
- Steam all furniture, carpets, bed base, and skirting boards
- Apply Diatomaceous Earth along:
- Skirting boards
- Bed frame
- Under furniture
- Around bed legs (on tape or in traps)
- Cover your mattress and base with bed bug proof mattress encasements
- Isolate your bed:
- Keep it 30cm from walls
- Don’t let bedding touch the floor
- Sleep in the room—yes, sleep there—so the bugs come to you and die crossing the DE.

Bed Bug Isolation Method
💬 Real Customer Review
⭐⭐⭐⭐⭐
“I tried chemical sprays from Woolies and they did nothing. One-time use of the Bed Bug Barrier kit—powder, steamer, and mattress cover—and I haven’t had a single bite since. It’s been months. Best money I ever spent.”
— Kylie R., Sydney
🧠 Final Thoughts: What Is the Best Organic Bed Bug Killer?
The best organic bed bug killer isn’t a single product—it’s a system.
And that system starts with Diatomaceous Earth, paired with steaming and proper bed isolation. That’s exactly what you get with Bed Bug Barrier’s DIY Organic Bed Bug Treatment Kit. One-time setup. Long-term peace of mind. No poisons. No re-infestations.
🔗 Ready to Go Organic?
Don’t waste another dollar on sprays that don’t work.
👉 Shop Now
Frequently Asked Questions:
❓1. Can I really get rid of bed bugs without using poison?
Yes, absolutely.
Organic methods like Diatomaceous Earth (DE) and steam treatments can kill bed bugs effectively without the use of toxic chemicals. The key is combining these tools in a strategic system: steam to kill instantly, DE for long-term kill, and bed isolation to stop bites. It’s safer for children, pets, and your home environment—and it works if done correctly.
❓2. How long does it take for Diatomaceous Earth to kill bed bugs?
Usually between 3 to 10 days.
Once bed bugs come into contact with Diatomaceous Earth, the microscopic particles cut their exoskeleton and dehydrate them. While it’s not an instant kill, it offers long-lasting protection—especially when applied around bed legs, baseboards, and entry points. Many users report bite-free sleep within a week.
❓3. Do organic treatments kill bed bug eggs too?
Not all of them—but steam does.
Diatomaceous Earth works on nymphs and adults but doesn’t penetrate eggs. That’s why steam is crucial—it reaches 100°C+ and can kill both bugs and eggs on contact. When used together, steam + DE is the best organic combo to wipe out entire infestations, including future hatchlings
Are You Looking for an Organic DIY Treatment?
Watch Our DIY Treatment Video To See How To Apply The Best Organic Bed Bug Killer To An Ensemble Bed
Watch Our DIY Treatment Video To See How To Apply The Best Organic Bed Bug Killer To A Bed Frame
Sources: Best Organic Bed Bug Killer
🔗 1. Diatomaceous Earth: A Natural and Effective Bed Bug Killer
Diatomaceous Earth (DE) is a natural, non-toxic powder composed of fossilized algae, known as diatoms. Its unique composition makes it highly effective against bed bugs, as it functions as a desiccant, dehydrating them upon contact. This method is safe for humans and pets when used correctly.
Source: The Pest Informer
🔗 3. Pet-Safe Bed Bug Treatments: Ensuring Safety for Your Furry Friends
When dealing with bed bug infestations in homes with pets, it’s crucial to choose treatments that are safe for animals. Natural remedies such as Diatomaceous Earth and heat treatments are effective and pose minimal risks to pets. However, it’s essential to follow application guidelines to ensure the safety of all household members.
Source: PetMD
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