Diatomaceous Powder For Bed Bugs And Fleas
Diatomaceous Powder for Bed Bugs and Fleas
This product consists of finely milled amorphous silica derived from fossilized diatomaceous earth. It acts as a desiccant, absorbing lipids from the exoskeleton of insects, leading to dehydration and mortality.
Composition and Physical Characteristics
The powder is composed of >85% silicon dioxide (SiO₂) in an amorphous form, with trace amounts of aluminum oxide and iron oxide. Particle size distribution is controlled to achieve a median diameter (D50) of 10–15 µm, ensuring sufficient surface area for adsorption while remaining respirable‑safe when handled with appropriate dust control.
Typical bulk density ranges from 0.30 to 0.45 g/cm³, and the moisture content is kept below 0.5 % by weight to maintain free‑flowing properties. The pH of a 10 % aqueous suspension is neutral (≈7).
Mode of Action Against Bed Bugs and Fleas
When insects crawl over the powder, the sharp microscopic edges of the silica particles cut through the waxy cuticle, absorbing cuticular lipids. This disrupts the insect's water retention mechanism, causing rapid desiccation. The effect is purely mechanical, leaving no chemical residue.
Technical Specifications
| Parameter | Typical Value | Test Method |
|---|---|---|
| Silica (SiO₂) content | ≥85 % (amorphous) | X‑ray fluorescence (XRF) |
| Median particle size (D50) | 10–15 µm | Laser diffraction |
| Bulk density | 0.30–0.45 g/cm³ | ASTM D1895 |
| Moisture content | ≤0.5 % wt | Loss on drying (105 °C, 2 h) |
| pH (10 % slurry) | 6.5–7.5 | ASTM D1293 |
Applications in Pest Management
The powder is suitable for integrated pest management (IPM) programs targeting bed bugs (Cimex lectularius) and fleas (Ctenocephalides spp.) in residential, hospitality, and veterinary environments. Its non‑chemical nature allows use in sensitive areas where pesticide residues are undesirable, such as bedrooms, pet bedding, and upholstered furniture.
- Treatment of mattress seams, box springs, and bed frames.
- Application to carpet edges and baseboards where fleas harbor.
- Dusting of pet resting areas and kennels.
- Use in cracks and crevices of furniture and luggage.
Handling, Storage, and Safety
Although the silica is amorphous and considered low‑hazard, respirable dust should be minimized. Use of a dust mask (NIOSH N95 or equivalent) and adequate ventilation is recommended during application. The product is stable under normal conditions; store in a dry, sealed container away from direct sunlight to prevent moisture uptake.
In case of skin contact, wash with soap and water. If inhaled, move to fresh air. The material is non‑flammable and does not pose a chemical reactivity hazard.
Packaging Options
Standard packaging includes multi‑wall paper bags with polyethylene inner liner, available in 5 kg, 10 kg, and 25 kg net weights. For bulk orders, the product can be supplied in flexible intermediate bulk containers (FIBCs) with a capacity of up to 1 tonne. Custom labeling and private‑branding are available upon request.
Frequently Asked Questions
Q: Can the particle size be adjusted for specific equipment?
A: Yes, the milling process can be tuned to achieve D50 values between 5 µm and 25 µm depending on nozzle or dust‑delivery system requirements.
Q: What information is needed for a quotation?
A: Required details include desired quantity, packaging type, delivery destination, and any specific certification (e.g., food‑grade, REACH).
Q: Is the product effective against insect eggs?
A: The desiccant action primarily affects active insects; eggs are less susceptible due to their protective chorion. Combining powder application with heat treatment improves ovicidal efficacy.