helpful links

growinman said:

Diatomaceous Earth or DE

everyone should know about 'food grade' DE
Diatomaceous earth - Wikipedia, the free encyclopedia

I've had success with this from spiders, gnats, ants, earwigs---will stop most all crawlers into your room or on the surface of your soil

Pest control
Diatomite is also used as an insecticide, due to its physico-sorptive properties. The fine powder absorbs lipids from the waxy outer layer of insects' exoskeletons, causing them to dehydrate. Arthropods die as a result of the water pressure deficiency, based on Fick's law of diffusion. This also works against gastropods and is commonly employed in gardening to defeat slugs. However, since slugs inhabit humid environments, efficacy is very low. It is sometimes mixed with an attractant or other additives to increase its effectiveness. Medical-grade diatomite is sometimes used to de-worm both animals and humans. It is most commonly used in lieu of boric acid, and can be used to help control and eventually eliminate a cockroach infestation. This material has wide application in control of insects of grain storage.
Disadvantages of using diatomaceous earth for pest control include the health risk to humans (see below), and the harm it does to many beneficial insects, including predatory beetles and bugs and many detritivores

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drumsinttown said:

From the wikipedia on mycorrhizal fungus..... i love this stuff so much

Plant roots alone may be incapable of taking up phosphate ions that are immobilized, for example, in soils with a basic pH. The mycelium of the mycorrhizal fungus can however access these phosphorus sources, and make them available to the plants they colonize

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