Harris Diatomaceous Earth

Diatomaceous earth works mechanically rather than chemically. When crawling insects come into contact with the powder, the microscopic, sharp edges of the diatoms scratch their exoskeletons, causing them to dehydrate and die.

Yes, this is food-grade diatomaceous earth, which is non-toxic and safe for use around pets and children when applied according to the instructions. However, avoid applying it in areas where it can be easily kicked up into the air, as inhaling fine dust can be irritating to lungs.

While it is effective outdoors, diatomaceous earth loses its efficacy once it gets wet. It is best used in dry, protected areas like cracks, crevices, wall voids, or under appliances where moisture won't wash it away.

The duster is designed for precision, allowing you to puff a thin, even layer into tight spaces. To minimize mess, use light pressure on the bottle and avoid over-applying; a very thin, barely visible layer is more effective than a thick pile.

Because it relies on physical contact, results are not instantaneous like a chemical spray. It typically takes a few days for the insects to encounter the powder and dehydrate, so patience is required for the treatment to be fully effective.