A powder version Best All-Around Bug Killer
Absolutely — a powder version can be even more effective for long-term centipede control, especially in places like:
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Baseboards
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Under sinks
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Behind appliances
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Basement cracks
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Carpet edges
Here are a few excellent homemade powder options that are safe and powerful:
🌿 1. Diatomaceous Earth (Food Grade) — Best All-Around Bug Killer
What It Does:
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Shreds the exoskeleton of centipedes and other insects, causing dehydration and death.
How to Use:
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Lightly dust along baseboards, cracks, under furniture, and in corners.
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Avoid thick piles — a light, barely-visible dusting works best.
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Leave for several days or weeks, then vacuum and reapply if needed.
🟢 Safe for pets and kids if it’s food grade — just avoid stirring it up into the air.
🔥 2. Baking Soda + Cornstarch + Essential Oil Powder
Ingredients:
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1/2 cup baking soda
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1/2 cup cornstarch
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10–15 drops peppermint or tea tree oil (optional)
Instructions:
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Mix the dry ingredients in a container.
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Add essential oil drops, mix thoroughly until evenly scented.
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Sprinkle around affected areas.
🎯 Baking soda is mildly abrasive and drying; essential oils repel.
🧂 3. Borax + Baking Soda Powder (Aggressive Option)
Not recommended if pets/kids are present — borax can be toxic if ingested.
Ingredients:
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1/2 cup borax
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1/2 cup baking soda
Use:
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Dust into crevices and corners.
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Great behind heavy furniture or appliances where bugs travel but kids/pets don’t go.
Bonus Tip: DIY Powder Dispenser
Use an old spice shaker or a mason jar with a lid poked with small holes for easy, controlled dusting.