By Peter Roos
DIATOMACEOUS EARTH FOR ANT AND ROACH CONTROL
A Natural Non-toxic Solution for Household Pests
Diatomaceous earth (DE) is a naturally occurring, soft sedimentary rock that crumbles into a fine, white powder. Made from the fossilized remains of tiny aquatic organisms called diatoms, DE is widely used as a non-toxic method for controlling household pests, especially ants and cockroaches. There is an inexhaustible supply.
How Diatomaceous Earth Works
Diatomaceous earth kills insects through physical – not chemical means. The fine powder consists of microscopic, sharp-edged
particles that damage the exoskeletons of ants and roaches. As these pests crawl through the powder, their protective outer layer is scratched and dried out, causing them to dehydrate and die within a few days.
Choosing the Right Type of Diatomaceous Earth
There are two main types of diatomaceous earth: food grade and filter grade. For ant and cockroach control, always use food grade DE, as it is safe for use in homes and around pets and children. You can get a 4 lb. bag, which is enough to do most homes, for under $10.
How to Apply Diatomaceous Earth for Ant & Roach Control
1. Identify Problem Areas: Locate where ants and roaches are most active. Common places include along baseboards, under appliances, near garbage cans, and in cracks or crevices.
2. Clean the Area: Before applying DE, clean surfaces to remove food crumbs, grease, and other attractants. Dry the area thoroughly, as DE is ineffective when wet.
3. Apply a Thin Layer: Using a duster or a small brush, lightly sprinkle a thin, even layer of diatomaceous earth in infested areas. Focus on entry points like windowsills, doorways, and under sinks.
4. Leave Undisturbed: Allow the powder to remain undisturbed for several days. The pests must walk through it for DE to be effective.
5. Reapply as Needed: If the powder becomes wet or is vacuumed up, reapply as necessary until pest activity ceases.
Safety Considerations
• Wear a mask during application to prevent respiratory irritation.
• Keep Out of Eyes: Diatomaceous earth can cause eye discomfort,
• Safe for Pets and Children: food grade DE is generally considered safe, once the dust has settled.
Tips for Maximum Effectiveness
Use DE as part of an integrated pest management plan, including regular cleaning and sealing entry points.
• Replace DE after cleaning or heavy foot traffic, as the powder can be disturbed or removed.
• For outdoor control, apply DE around the foundation of your home, but reapply after rain.
Diatomaceous earth is an effective, natural, and chemical-free way to control ants and roaches in the home. When used properly, it can help you maintain a pest-free environment safely and efficiently. Always follow label directions and safety precautions for best results.