Grain Storage

Diatomaceous Earth has been used in grain storage for generations. As awareness of and concern about chemical pesticides and their negative effects grows, inert and natural products are enjoying renewed attention. Chemical insecticides can leave residues in stored grain, which can lead to health problems for those digesting the products derived from these grains. Furthermore the insects themselves can develop immunity to the chemicals used. Due to it’s mechanical mode of action, insects cannot develop immunity to Diaguard®.

Diaguard® can be used on ALL grains including oilseed rape, wheat, barley, oats, rye, triticale, maize, rice, soya, sorghum, flax, linseed, peas, beans, vegetable and flower seeds as well as bird seed. It is effective against all the major grain store pests that it has contact with, including beetles, mites, weevils, borers, and moth larvae.

Diaguard® is approved for use in organic systems.

How to Apply:

Apply about 2% by weight of Diaguard® into the stored grain or flour.

A hopper with a variable rate auger or conveyor can be used to apply the product during transfer of grains into transportation containers or storage areas.

Stored grains should be regularly monitored and further applications used if any infestations are found.

Diaguard® can be applied to grains at any stage of preparation, transportation after or before drying or during storage. It may also be applied to the inside of any storage containers or silos for grain in order to prevent various grain pests.

When used as directed the control of crawling insects continues throughout the storage period and after such storage the grains can be used as intended without the removal of the powder subject to any protocol put in place by the end user.

Caution: If this product is damp or the moisture of the grains is higher than recommended (15% moisture), do not use, as this will reduce the effectiveness of the product.

How safe is Diaguard®:

Diaguard® is a "Codex" or "Food Grade" diatomaceous earth. What this means is that it complies with strict FDA requirements which deem it safe for human and animal consumption. When using any diatomaceous earth product around humans or animals it is always preferable to use a “Codex” standard DE.

For DE to be called "Codex" or "Food Grade", it must meet the following requirements:

Item Requirements Diaguard® Typical Values
Arsenic (ppm) <10ppm <3ppm
Lead (ppm) <10ppm <5ppm
Non-Siliceous Substance % <25% <9%
PH Passes test 7.2
Loss on Drying % 10% max 4.5%
Loss on Ignition % 7% max. on dry basis 2%

WARNING: "Non-Codex" DE can and often do contain high levels of heavy metals and crystalline silicas, both of which are unsafe for animal or human consumption.
If you need more information about our products, please feel free to contact us.
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Tel: 01 + 282 31 94


External Literature
Challenges of grain protection in
sub-Saharan Africa, the case of Diatomaceous Earths