What Is Diatomaceous Earth? How To Use DE For Garden Pest Control

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- Fruit & Trees
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- Preserving Recipes
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- Seasonal Recipes
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- Herbal Remedies
- Fermented Foods
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- Chicken Health
- Eggs & Laying
- Raising Chicks
- Mini Donkeys
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- DIY Skincare
- Herbal Remedies
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- Music Playlists
- Sustainable Crafts
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- Our Shop
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- Return Policy
About
- About
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Have you heard about diatomaceous earth, or perhaps a recommendation to “use DE!” to solve a pest issue, but aren’t quite sure what it’s all about? You aren’t alone! DE is an excellent organic material to use in the garden (or around your homestead in general) but is often misunderstood.

Read along to learn all about DE and get answers to your frequently asked questions. This article will cover exactly what diatomaceous earth is, and how to use DE in your garden for organic pest control. We’ll explore what pest insects DE is effective against (or not), a few notes on safety and limitations, and how to apply it for the best results.

What is Diatomaceous Earth (DE)?

Diatomaceous Earth, known as “DE” for short, is a very fine, chalk-like white powder. It is made up of the fossilized remains of single-celled aquatic microorganisms called diatoms. In a nutshell, it is ancient phytoplankton. Diatomaceous earth is found naturally in sedimentary rock and mined to use in industrial products, swimming pool filters, as an organic insecticide, in pharmaceuticals, cosmetics, and even in food.

Like its many uses, diatomaceous earth comes in many grades. We always choose to use food-grade DE for our garden and chicken coop, which is the most gentle and safe form. Filter or industrial-grade DE has a significantly higher concentration of silica and is considered toxic to mammals.