Anyone have any experience using Diatomacious earth

714steadyeddie

Well-Known Member
In ur soil mix or use as a pesticide. Just curious. Thx.
I did, I bought the food grade bag on Amazon, I had gnats and took are of the larva clean. I layered some on my coco, once it was a little dry. Left it for 1.5 days and did it for two weeks and it killed them out for good.

Not sure if it's a myth but I heard it's not bad for the medium either
 

slow drawl

Well-Known Member
Hey all... I've been using DE for quite a while. As everyone say's it's not as effective at controlling insects when wet. This stuff works great for ants @Indacouch I've dusted out many nests. It will kill most anything with an exsoskeleton. It's just a pain in the ass to keep reapplying it, but if you do it will work. As stated by @thumper60 take caution not to breath this shit. I have put a shit ton of this on the girls in the GH and haven't had any soil issues at all, and the gnats stay away.
 

Douglas.Curtis

Well-Known Member
Can be mixed with soil and coco.

Never used on the floor or on top of surfaces, where air currents can pick it up. As has been noted, breathing this stuff is seriously not good. Cuts up your lungs like it cuts up insects. Keep it out of liquids that will dry out and create powdery spots in the air currents.
 

dannyboy602

Well-Known Member
Can be mixed with soil and coco.

Never used on the floor or on top of surfaces, where air currents can pick it up. As has been noted, breathing this stuff is seriously not good. Cuts up your lungs like it cuts up insects. Keep it out of liquids that will dry out and create powdery spots in the air currents.
Interesting that you can swallow food grade with lots of benefits but not inhale it. I'll have to look into it more but thx for the tips and I won't use it in my mix so much as a top dressing
 

Mount

Well-Known Member
I have used DE since I started growing indoors and wont grow without it. Have been an outdoor guy for longer than I care to remember, last fall I decided to try my hand indoors to keep the steady flow of meds going without the typical break between outdoor grows. I cloned some of my outdoor plants and guess they brought spider mites inside. I found the food grade DE takes them out for good and now I use it as part of my routine. I top dress always with it, have dusted the edges of my tents and room as a precaution a few times and I have used it wet as well as dry during veg only to ensure no pests ever touch my plants again. An ounce of prevention will save your pounds at harvest time...

https://www.diatomaceousearth.com/blog/how-to-apply-diatomaceous-earth/
 

goofy81

Well-Known Member
I've used something similar. It's messy IMO get some fine nets around your pots and never worry much again.
BTW I'm using airpots, which is why i said it's messy !
 

CaptainCAVEMAN

Well-Known Member
I use it to deter ants and as a soil amendment. Works great for both!
I mix it a bit lighter at 1\2 cup per cubic foot of soil. I don't think there's anything wrong with more, I just started on the small side of amendment measures and haven't needed to increase yet.
 

ltecato

Well-Known Member
I bought a bid bag of DE to use against bedbugs, ick. There is also a product called CimexA for use against bedbugs that I think is supposed to be a beefed-up form of DE or silica powder that sticks to the bastards and dries them out better than regular DE.

According to something I read, DE sticks to bugs that are roaming around, and then when they return to their "nests" or hiding places, they bring back DE that kills their friends and family. Supposed to work for roaches too.
 

Douglas.Curtis

Well-Known Member
de consists of tiny, super sharp, particles of calcium. It slices up exoskeletons. Any de making it to a nest will cause havoc, yes. *Probably* responsible for at least *some* "expando-weed." Ever take a hit and suddenly your lungs react and feel like they're about to explode?

It's right up there with super fine perlite dust, for human lungs.
 
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