Make a shaker out of an old coffee can to reduce waste when applying diatomaceous earth to indoor plants. Pouring directly from the container or bag or using a spoon can result in overuse of the product. Poke small holes in a plastic coffee can lid with a pen or other sharp instrument, pour some diatomaceous earth into the coffee can and place the lid tightly over the can.
Use the shaker to dust the plants with diatomaceous earth, as well as the soil in each plant container. You might also want to add a few dustings of the material around the planters, depending on the severity of the pest problem you are experiencing.
Repeat applications as needed until your pest problem has been resolved.