Diatomaceous earth is a naturally-occurring, fossilized sedimentary mineral rock. Its composed of the remains of diatoms, or oceanic unicellular algae. Diatoms are over 30 million years old and are formed from the cementation of microscopic algae-like plant remains into the earths surface. These remains are usually found in freshwater environments, but can also be found in marine settings. Diatomaceous earth has a wide variety of uses, but is most commonly used as a natural Insecticide. When dusted around a perimeter or in an area where insects are known to travel, diatomaceous earth works to kill them by dehydrating and ultimately killing them. The fine powder acts like a razor, slicing through the exoskeletons of the insects and absorbing all the moisture from their bodies. Diatomaceous earth can also be used in the garden as a Natural Fertilizer. The high silica content of diatomaceous earth helps to aerate compacted soils and improve drainage. This, in turn, allows for better root development and stronger plant growth. In addition, the added minerals found in food grade diatomaceous earth (like calcium, magnesium, and iron) are essential nutrients for plant growth. Diatomaceous earth is truly a versatile product with a multitude of uses. Whether youre looking to get rid of pesky insects or need a natural way to fertilize your garden, diatomaceous earth is a great solution.