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  #1  
Old 12-11-2017, 10:12 AM
Wren Wren is offline
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Hello,

Does anyone use Diatomaceous Earth in their potting mix? I started to use it in little amounts in the mix.
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  #2  
Old 12-11-2017, 10:55 AM
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DeaC DeaC is offline
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Have sprinkled some on top of medium if bush snails appeared on the masdies. But actually a cold coffee bath worked very well,a trick that Ray mentioned in a post some time ago.
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Old 12-11-2017, 12:17 PM
jkofferdahl jkofferdahl is offline
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DE is quite effective against insects though I can't see how it'll do much when mixed into the media. I dust it on the media's surface and also the plants,
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Old 12-11-2017, 12:38 PM
Arizona Jeanie Arizona Jeanie is offline
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I don't think it does much once it gets wet.
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Old 12-11-2017, 03:07 PM
dounoharm dounoharm is offline
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diatomaceous earth is great stuff!! it is best used out in the garden tho....it is rather messy in the greenhouse. indoors, it will kill fleas, I put it on the edges of the floor by the baseboard. you can dust it in the garden with a duster, or you can wet it in a sprayer, with soap....inside, wet is not good, lol...I made a mistake and had some in the garden sprayer spraying aphids, and I just hit a few spots in the greenhouse, but it was nasty to clean up...milky white stuff everywhere!
mixing It with potting mix is relatively futile....it washes right out....
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Old 12-11-2017, 04:14 PM
jkofferdahl jkofferdahl is offline
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As an aside, one of my grandmothers mixed a tablespoon of DE into her morning juice each day. Apparently it's also a good digestive aid.
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Old 12-11-2017, 04:44 PM
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Dollythehun Dollythehun is offline
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Quote:
Originally Posted by DeaC View Post
Have sprinkled some on top of medium if bush snails appeared on the masdies. But actually a cold coffee bath worked very well,a trick that Ray mentioned in a post some time ago.
Deac, please elaborate on the cold coffee bath.
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Old 12-17-2017, 07:12 AM
Evendozen Evendozen is offline
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I agree with Arizona Jean. In the garden it needs reapplied after a rain to be effective , so adding to potting mix most likely won't be of any use . Just my opinion.
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Old 12-17-2017, 09:28 AM
jkofferdahl jkofferdahl is offline
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Quote:
Originally Posted by Evendozen View Post
I agree with Arizona Jean. In the garden it needs reapplied after a rain to be effective , so adding to potting mix most likely won't be of any use . Just my opinion.
The problem isn't that it gets wet - it's essentially silicon and so not water-soluable. The problem is that water washes it away. You can mix it into water and allow it to harden, then once broken back up again it's still effective.
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