Insecticide for Indoor Plants

By: Agi Kaja4 min read
Share

How to Make DIY Non-Toxic Insecticide Using Diatomaceous Earth

Why Diatomaceous Earth?

The best and safest way to rid your household of any troublesome pests. Too good to be true? Apparently not. Diatomaceous earth, also known as DE is a powdery compound made up from the ground-up bodies of prehistoric diatomic algae fossils known as diatoms. When DE is ground up the tiny skeletal diatomic pieces become very sharp (at a microscopic level). They produce the same effect many microscopic razors would, cutting into lung tissue, mucous membranes and breathing holes in insects or bugs. These microscopic cuts in bugs help leech out their moisture, drying them out. DE is also effective against snails and slugs, drying them up as well as worms, mites, fleas, beetles, and almost any spider or insect. Diatomaceous earth is also safer around other wildlife, children and pets (as long as DE dust is not inhaled) as it is 100% natural and does not contain any nasty chemicals or poisons. 

Indoor Uses

Similar to other home solutions DE is something you can mix in with water and simply spritz. However, there are many accounts that state Diatomaceous earth works best when it is dry. This can be a relief for many as DE can simply be vacuumed up when used in the home. DE can be sprinkled on carpets, regular bedding, as well as pet bedding and any corner of concern in the house. Allow for a minimum of 12 hours for the DE to sit on the fabric and do its job before vacuuming up. Additionally, diatomaceous earth can also be used on your pets! It's incredibly helpful in keeping any unwanted pests away including fleas, worms and lice.

Diatomaceous Earth Spray Recipe (Preferably Used on Any Indoor Plants)

  1. Add 1 tablespoon of diatomaceous earth into a one-litre container of water with a lid that seals tightly. 
  2. Screw the lid on and shake vigorously until the DE dissolves into the water.

Note; The DE will separate and gather at the bottom of the container. Make sure to continuously shake whilst in use to ensure effective application.

  1. Spray the plants with a fine mist until they are wet but not dripping. Spray the undersides of leaves too.
  2. Allow the plants to dry. As the water evaporates the DE is left behind as a protective barrier that adheres to the plant’s leaves and stems.

Diatomaceous Earth Pet Dust Bath Flea Treatment Recipe

  1. Measure out enough DE for your pet, make sure it is a sufficient amount for rubbing into your pet’s fur and areas of concern (varies depending on pet size).
  2. Dilute the DE with another powdery substance such as arrowroot. This will help prevent any discomfort in your pet.

Note; Be sure to avoid the eyes and mouths as DE can cause discomfort from dryness.

  1. Be sure to treat any pet bedding, carpets, furniture and any other area your pet comes in contact with as it is likely to be infested as well (these other areas do not require the DE to be diluted). 

Outdoor Uses

For outdoor use, DE can just be spritzed with the recipe above or sprinkled out in your back garden or on a raised bed of greens. Diatomaceous earth must be reapplied after every rain or heavy dew for it to be effective. This works out perfectly, as DE can be spread in the mornings right on the dew itself or right after the rain has ebbed, helping the DE to stick and dry on more surfaces, plants and shrubs. Please note that the use of a dust mask is advised and the area should be kept clear of pets and children until the DE dust has settled.

A word of caution to all those looking to start using DE regularly in and around their homes. All diatomaceous earth is not made in the same way. It is very important to make sure that when shopping for DE make sure that the package it comes in states that it is ‘food grade

Share

Agi Kaja
Agi Kaja
Curating a blend of nourishing recipes, practical nutrition hacks, and intentional living tips. Agi focuses on the "why" behind the products we sell — helping customers build a life that feels as good as it looks. With deep roots in nutrition and a passion for food and health, she spends her days debunking myths, cooking whole foods and highlighting the best ways to fuel a healthy life, ensuring our community stays informed, inspired, and well-fed.

Leave a comment

All comments are moderated before being published

*special discount applies automatically to products from our brands: Whole Food Earth, RAWGORILLA, Wild Elephant, Serious Grains. Stock & Bite and Stock & Prep products are not eligible for a discount.


Free delivery on orders value £35

Orders value £35 or more delivered to Mainland UK qualify for free shipping.

Satisfied or refunded

We stand by our high-quality products. 100% no risk guarantee. 30 days no quibble refund policy.

Top-notch support

Our commitment is to provide Whole Food Earth® customers with outstanding personal customer services.

Secure payments

We use encrypted SSL security to ensure that your credit card information is 100% protected.



🇬🇧 UK Mainland DeliveryFree Standard Delivery on all orders over £35.
Free Premium Next-Day on orders over £70.
Club Members: Free delivery on orders over £50.
Next-day delivery applies to working days only (Monday - Friday), excludes weekends and bank holidays. Orders placed before 1pm dispatched same day.
🇮🇪 Northern Ireland & Remote AreasShipping rates are calculated at checkout based on your specific location. Highlands, Islands and Channel Islands may incur additional shipping charges. We dispatch within 1-2 business days.
🇪🇺 European & InternationalEU Delivery from just £7.00. Weight based pricing - final costs calculated at checkout based on parcel weight and destination. We ship to all EU countries and selected international destinations.

🇬🇧 UK
Trading NameWholefood Earth
Registered NameWholefood Earth Ltd
Registration No.09650943
VAT No.GB 227645691
Registered inEngland & Wales
Registered Address / Business Address59-63 Hopes Lane, Ramsgate CT12 6UW, Kent, United Kingdom
🇪🇺 Europe
Trading NameWholefood Earth
Registered NameWholefood Earth Europe d.o.o.
Registration No.9450327000
VAT No.SI70465355
Registered inSlovenia
Registered AddressKamniska Ulica 4a, 2000, Maribor, Slovenia
Business AddressZgornje Hoče 7, 2311 Hoče, Slovenia

Frequently Asked Questions

What payment methods can I use?
How do I know my credit/debit card transaction is secure?
Can I pay by cheque or postal order?
Do prices shown on the site contain VAT?
What is the minimum order for free delivery?
What is your delivery charge?
Do you ship internationally?
How long will it take for delivery?
How do I track my order?
Will I get a receipt?
How do I make changes to my order once it has been placed?'
What happens if a product I have ordered is not in stock?
What is your policy regarding refunds?
Who do I call if I am unable to log into my profile?
What is Wholefood Earth’s policy on security & privacy?
Will you pass any of my details on to any other similar companies?
Can I order online and collect in store?
'If you purchase the same products regularly, you can easily re-order them by copying your previous order.'

© 2015-2026 Whole Food Earth®