HARRIS Diatomaceous Earth Food Grade 10.5 LB - Organic Pest Control

In this review the HARRIS Diatomaceous Earth Food Grade 10.5 LB is examined for homeowners and small-scale growers seeking a chemical-free way to manage crawling pests. The bottom line: this product is best for people who need a versatile, OMRI listed dust that can be used in gardens, chicken coops, and around baseboards; its biggest advantage is a simple, inert physical pest control method with no additives, making it appropriate for organic practices and households with pets when directions are followed. The review focuses on real-world use, safety considerations, and where it fits among other nonchemical options.

Key Features

• 100% Chemical-Free: Uses food-grade freshwater diatomaceous earth with no additives or fillers, providing a nonchemical option for insect control that relies on physical desiccation.
• OMRI Listed for Organic Use: Certified by the Organic Materials Review Institute, so it can be incorporated into organic gardening and farming routines without risking certification issues.
• Safe for Homes: Packaged and labeled for safe use around children and pets when applied according to directions, making it suitable for indoor perimeter and spot treatments.
• US Sourced and Packaged: Responsibly mined in Nevada and packaged in Georgia, which supports consistent quality control and domestic sourcing transparency.
• Trusted Brand History: From a long-established pest control company, offering confidence for homeowners and pros who prefer legacy brands with proven products.

Who It's For

This product is ideal for gardeners, small-scale farmers, and homeowners who want an OMRI listed, nonchemical method to manage ants, fleas, mites, and other crawling pests. It suits people using organic methods, owners of poultry or pets who prefer inert pest control, and anyone looking for a bulk supply to cover yards or multiple indoor spots.

It is less suitable for those needing immediate knockdown of flying insects or who require a ready-to-use spray; dust application and some reapplication are part of effective use. Users who cannot control dust drift or who need an instant-contact insecticide should consider alternative approaches.

Pros & Cons

Pros

• OMRI listing makes it acceptable for certified organic operations and home organic gardens.
• Food-grade formulation with no fillers gives peace of mind for use around animals when directions are followed.
• Large 10.5 lb quantity provides good coverage for yards, coops, and multiple indoor applications, offering value for money.
• Sourced and packaged in the USA, which supports supply consistency and oversight.

Cons

• Dustiness draws mixed feedback from users, so care is needed to limit airborne particles during application.
• Works slowly as a physical desiccant, requiring proper placement and occasional reapplication rather than instant elimination.

Specifications

Product	Food-grade diatomaceous earth
Net weight	10.5 lb
Certification	OMRI Listed for Organic Use
Composition	No additives or fillers; 100% freshwater diatomaceous earth
Source	Mined in Nevada, packaged in Georgia, USA
Recommended use	Indoor and outdoor crawling insect control, gardens, coops

Our Verdict

For gardeners and homeowners wanting a proven, nonchemical pest control option, the HARRIS 10.5 lb food-grade diatomaceous earth is a practical choice: OMRI listing, domestic sourcing, and a large quantity make it solid value for organic use and multi-location treatment. Users should accept that dust management and repeated placement are part of its effective use.

Frequently Asked Questions

Is this safe to use around chickens and pets?
When used as directed, the food-grade formulation is suitable for chicken coops and around pets, but avoid inhalation and wear a mask during application.

Can it be used in organic gardens?
Yes, it is OMRI Listed for Organic Use, so it can be used in certified organic gardening and small-scale farming.

How quickly does it work?
It acts as a physical desiccant and typically requires direct contact with crawling pests and some time to reduce infestations; reapplication may be necessary for persistent problems.