Sierra Natural Science.
sns217 for mites..sns203 for flys and aphids.
All natural..smells great..kills eggs too.
BLESSED BY THE ERB'S ESSENCE
Well that diatomeaceous earth is a very fine powder i think, so fine that when bugs and insects walk over it or brush against it they get lots and lots of tiny tiny cuts that never heal because they are so fine and the end result is they bleed to death or their insides ooze out the cut killing them reasonably quickly, is used to repel ants on the grow room floor and on soil. I have never used it but have seen at a lot of grows both commercial and illegal spreading it around. Its one of those tricks of the trade and believe it to be harmless to humans as we have different skin to bugs etc etc but i still would never use it, sounds nasty. Would be good to hear from someone who dose use it, i get a lot of small carpet beetles or somthing that looks similar and the munch the leaves of my weed now and again so would be good as these bugs have wings and resemble very small ladybirds but are too damn lazy to fly, even when plucked of the leaf. There not a problem but my local garden nurseries sell it and could easily get hold of it, i'll see what others say on it first before paying for a bag.
Diatomeaceous Earth you have peaked my interest. Anyone use this stuff?
i have..its messy and cakes up wen water mixes with it.
use wut i said earlier..SNS217
BLESSED BY THE ERB'S ESSENCE
I've used it before. Works, but only if kept completely dry. Any amount of moisture ruins it.
It's a great product for killing slugs and such outdoors, but not worth the trouble for indoor grows imo.
DE does work; it's a mechanical killer so there isn't any chance an insect can become immune to it. DE is essentially the fossilized remains of diatoms, microscopic sea dwelling organisms that have lived in the oceans for millions of years probably. Their bodies are comprised of silica and other minerals, but more importantly they have these razor sharp surfaces which are a terrible thing to come into contact with if you're an insect. DE has uses in various industries; pool filters utilize a form of expanded DE which isn't suitable for use as a pesticide. You would want to use garden or preferably food grade DE.
Stuff has to be dry in order to work and from personal experience putting a layer of it on top of your soil is a bad idea, anyways (it will get very messy, impeding air exchange). What it is good for is creating a 'bug-barrier' around your grow room. It can be used for fungus gnats also but should be used with other stuff. You can sprinkle the DE around the floor, work it into the carpet, dust it into cracks and crevices, etc. Any insect that comes into contact with it will be pierced and will dehydrate within 48 hours.
Oh yah, DE is also a good source of certain minerals (silicon, copper) and it can be used in soil mixes for that purpose.
Dude if you want a non-toxic solution to your pest i've found a product that has worked ever time for me. I think it's called Tanlin, but i know it works by cutting the pests in your medium with thediatomeaceous earth and then has a bacteria added to it that completely eradicates those MFers, and it's all natural.