Understanding Diatomaceous Earth
The Gardener|November 2017

Do away with bugs the natural way.

Paul Donovan
Understanding Diatomaceous Earth

In this day and age of environmental awareness, many of us are looking for more environmentally friendly approaches to pest control, rather than resorting to the use of broad spectrum insecticides, which are as toxic to beneficial insects as they are pest species. One of the alternatives is diatomaceous earth.

Diatomaceous earth (DE) was first sold as a natural pesticide back in 1960. Its advantage over other forms of pest control is that it is an entirely natural, easy-to-use product. It has no impact on the environment and is harmless to most higher life forms. Furthermore, as DE is a natural substance, insects cannot build up resistance to it.

Definition

Despite its name, DE is not a soil but a naturally occurring rock comprising of the fossilised remains of single-celled, algae-like plants called diatoms. Diatoms still exist today and are one of the most common forms of phytoplankton found in water, but those from which DE is manufactured existed millions of years ago. As the great lakes dried up, the skeletons of these diatoms (which consist of 33% silicon, 19% calcium, 5% sodium, 3% magnesium, 2% iron, plus other trace elements) left behind deposits called diatomite. When we mine this the product is a chalk-like product.

How does it work?

Bu hikaye The Gardener dergisinin November 2017 sayısından alınmıştır.

Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.

Bu hikaye The Gardener dergisinin November 2017 sayısından alınmıştır.

Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.

THE GARDENER DERGISINDEN DAHA FAZLA HIKAYETümünü görüntüle
FIRE AND Feathers!
The Gardener

FIRE AND Feathers!

On a dreary winter's day, a screen of fiery and feathery leaves puts up a fight against dullness!

time-read
2 dak  |
July/August 2024
GET THE ladies in!
The Gardener

GET THE ladies in!

At this time of year, early-flowering shrubs vie with each other to get the most attention. We say: Trust those with female names for frills and butterflies. They go the extra mile to flower their hearts out.

time-read
1 min  |
July/August 2024
Vegetable Soups and dumplings
The Gardener

Vegetable Soups and dumplings

Vegetables make the most delicious soups and classic combinations are always a winner.

time-read
4 dak  |
July/August 2024
Yummy sweet potatoes for your good health
The Gardener

Yummy sweet potatoes for your good health

Boiled, baked or braaied, sweet potatoes (Ipomoea batatas) are a delicious and healthy winter comfort food. Just a dollop of butter, a little seasoning and you are good to go.

time-read
3 dak  |
July/August 2024
Pretty and functional
The Gardener

Pretty and functional

If cooking is your main thing, you would probably be more interested in the culinary value of the three herbs and some of their varieties we are describing.

time-read
5 dak  |
July/August 2024
Dried Seedheads & Pods
The Gardener

Dried Seedheads & Pods

Autumn and winter are the best times to see what flowers produce the best seedheads that can be left on the plants to feed the birds and bugs and for harvesting for dried arrangements.

time-read
4 dak  |
July/August 2024
SO MANY FACES and so many choices...
The Gardener

SO MANY FACES and so many choices...

Whoever associated a Cotyledon orbiculata (pig's ear) with the ear of a pig obviously did not know about all the varieties and cultivars this species in the genus Cotyledon has.

time-read
3 dak  |
July/August 2024
COLOURFUL Cold Weather WINNERS!
The Gardener

COLOURFUL Cold Weather WINNERS!

If it comes to a vote, these dependable shrubs will be the top candidates for prime performance in winter and in other seasons...

time-read
5 dak  |
July/August 2024
What makes a garden sustainable?
The Gardener

What makes a garden sustainable?

It is interesting to note that the United Nations defines sustainable development as: “development that meets the needs of the present without compromising the ability of future generations to meet their own needs”.

time-read
4 dak  |
July/August 2024
Nurturing NATURE-The Story of Kraal Garden's Transformation
The Gardener

Nurturing NATURE-The Story of Kraal Garden's Transformation

Nestled within Prince Albert's rustic embrace lies a gem that is a testament to the transformative power of human vision and nature's bounty.

time-read
4 dak  |
July/August 2024