Harris
Harris Diatomaceous Earth Food Grade — 4 lb with Powder Duster
Food-grade diatomaceous earth kills bed bugs, fleas, roaches & ants by dehydration. Includes powder duster for easy application. Long-lasting.
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Key Features
- Food-grade safe — non-toxic to humans & pets
- Kills by dehydration — no chemical resistance
- Effective against bed bugs, fleas, roaches & ants
- Includes powder duster for easy application
- Long-lasting when kept dry
- Can be used in kitchens & pantries
- 22,000+ Amazon reviews
- Natural alternative to synthetic pesticides
Product Specifications
| Brand | Harris |
| Size | 4 lb |
| Grade | Food Grade |
| Includes | Powder duster applicator |
| Active Ingredient | Diatomaceous Earth (silicon dioxide) |
| Target Pests | Bed bugs, fleas, roaches, ants, crawling insects |
| Residual | Long-lasting when kept dry |
About This Product
Harris Food Grade Diatomaceous Earth is a natural, non-toxic powder made from fossilized algae that kills bed bugs, fleas, roaches, ants, and other crawling insects by dehydrating them. The 4-lb bag includes a powder duster for easy application in cracks, crevices, and along baseboards. It is food-grade safe and can be used in kitchens, pantries, and around pets. Unlike chemical pesticides, diatomaceous earth remains effective as long as it stays dry, providing long-lasting protection.
Why Pest Control Bros Recommends This
Harris Diatomaceous Earth is our go-to recommendation for homeowners who want a chemical-free, long-lasting barrier against crawling insects. Because it kills by physical dehydration rather than chemical action, insects cannot develop resistance to it — making it a reliable long-term solution. The included powder duster makes application precise and mess-free, and the food-grade certification means it's safe to use in pantries and around pet food areas.
Using This Product in Arizona
Arizona's dry desert climate is actually ideal for diatomaceous earth — it works best in low-humidity environments where it stays dry and maintains its desiccating properties. Apply it in wall voids, attic spaces, and along the exterior foundation where scorpions, roaches, and ants enter. During monsoon season (July–September), reapply in areas that may have gotten wet, as moisture temporarily reduces effectiveness until the powder dries out again.
Frequently Asked Questions
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