Harris DE Crawling Insect Killer

No. This product is made of 100% pure freshwater diatomaceous earth with no fillers or chemical additives, making it a natural option for pest control.

Diatomaceous earth works mechanically rather than chemically. When crawling insects come into contact with the dust, it absorbs the protective oils from their exoskeleton, causing them to dehydrate and die.

Diatomaceous earth is only effective while it remains dry. If the powder gets wet or damp, it loses its ability to kill pests, so you should avoid applying it in areas with high moisture or standing water.

The product comes in a puffer bottle specifically designed for this purpose. Simply squeeze the bottle to puff a light, even layer of dust directly into cracks, crevices, and behind baseboards where pests hide.

While this is a natural product, it is a fine dust that can cause respiratory irritation if inhaled. Apply it carefully in areas inaccessible to pets and children, and avoid creating large clouds of dust during application.

No, diatomaceous earth does not expire. As long as you keep the container sealed and store it in a cool, dry place, the dust will remain effective indefinitely.