That’s a great question. My true answer is I don’t know.
From what I see of DE is it only works dry. Saying that, I intentionally wet some to see what would happen. It turned into a silty looking stuff. This is what basically would happen to it only on a smaller scale. Remember we are only dusting the top of the soil. Not layering it on. So, my thinking is that it just goes into the soil as silica. It will no longer be sharp edges.
I know I had fungus gnats before. And since I have used DE, I have clean sticky traps.
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Got a 24" box fan above the plants on full bust.
Plants are getting a shower, then se sauna treatment. Then back in the tent with the fans. Imma use humidity & Steinernema feltiae aka beneficial predator mites.
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GET THERE!!!
GIVE 'EM HELL, MY BRETHREN!!!
TELL 'EM BIGMIKE55 SAID " FNCK YOU"!
What’s a real sentence?
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@BigMike55
Action
Moved into washroom, Heavy cold showered everywhere including under leaves/soil.
HOT water left running from the shower head away from plants.
Bathroom door air gap closed = NOBODY PEES UNTILL HUMIDITY IS 300% FOR 2 HOURS.
Sprayed the shit outta the tent and cleaned it up with Lysol wipes. When plants go back inside, it’s 75% humidity time for a few days.
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My wife asked me why I was grinning, told her I was looking at some ladies in a shower 
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Hahaha. If I said that to my wife, I’d be sleeping at your place hahaha.
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Careful with hot water y’all, nobody wants sous vide cannabis plants. I use cold water to drown the mites and in the shower I just take the entire plant and wash it off good. The complete protocol is to take a plant, pull off the big leaves and toss em, then submerge the plant in cool water for 30 min. Take it out and spray it off with the vegetable sprayer and you’re done with mites. I used that to terminate an infestation back in 2017.
edit: spinosad decomposes into hydrogen cyanide, careful. It’s a banned substance here that will be tested for.
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Hot water is only hitting the bathtub 
not the plants 
Can’t make humidity without hot water tho in my washroom… Vegetable sprayer? Meaning spray bottle with vegetable oil?
I have neem tea leaves, think I can heat up some water, soak the leaves and when it cools go nits with a spray bottle?
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naw the spray nozzle in the kitchen sink or a water pik toothbrush, something with a decent spray to rinse off any carcass or egg.
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I have heard this many times by different people. If them mofos come back after my treatment I may give that one more try before they go to compost.
Anyways good discussion peeps!
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@BigMike55
Humidity I think is working
Let’s keep each other posted. What works best or not all. Would be good to know for future runs. As of right now my plants appear to be bug free. But I know how those fuckers are. If you don’t get every last one, they come back stronger than ever. I think I will do 1 more treatment tomorrow or Monday. Just to be sure. Maybe I can make it thru this run safely.
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Seriously thinking about taking clones of mom/dad, killing all plants (besides clones) then drowning clones in cold water for 24hours. Then bleach the shit out of the tent and start over.
I’d rather harvest OG very soon & continue growing… BUT If I cant kill all these fuckers fast, I might go back to Hydroponics (which I was never really good at.
Also worried about mold setting in on the buds, cause they had a dam good shower.
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That is a valid option. I have considered this as well. The only thing keeping me from doing that is the amount of time I have invested in the Monstercropped girls. But if it comes to that I will do it.
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And as luck would have it, the Monstercropped girls are the ones that I found bugs on. The other plants? Not so much.
Yeah man. This is the part that’s eating me
Thank you @JoeCrowe . I thought I remembered someone I pay close attention to say that. You posted that procedure recently, didn’t you? About clones maybe?
Anyway, I’m glad some others that know more than me agree that submerging is a viable solution.
Yay memory! Maybe. 
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I had almost forgotten about this plant. I put her outside on May 15. She has gotten the same treatment as my peppers and tomatoes. This is a clone of the Monster Cropped Afghani.
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Hey @CADMAN
How did the drowning work on the mites. I still have not seen any more. I went ahead a powdered the underside of the leaves again with DE. But so far so good.
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Everything I’ve done:
All plants except clones took a very cold shower, in the shower for 15 mins, soaked Everything incl the soil. Then left Hot water running, sealed up the bathroom and made the humidity 90% for 1 hour. Sprayed whole tent insides with tons of water for about 10 mins. Tossed Everything back in tent, cranked on the lighting and turned off any venting. Humidity hit 98% for about 3 hours, awsome. Turned venting on, lights off. Humidity dropped to 40% in a few hours.
Next day sprayed the F outta all plants with “Tea” made from 1 hour soft boiled Neem Leaves, Fresh Rosemary & Peppermint extract (stuff stinks) sprayed Everything incl soil (except the actual buds) and cranked up humidity for a few hours, then dropped it again.
Lastly sprayed all plants with fresh cold water, removed anything that look infected and tossed it.
Clones only last night, filled the bathtub and submerged them for 2 hours. Then shook them off and in the tent to flower.
I’m hopeful I’ve killed these bastards 
…
I was reading that 75% + Humidity litterly make spider mites explode, because they suck in too much moisture and can’t Handle it. Hahha. I hope that’s true. But so far I’ve not seen anything new.
Ohh, I also released a butt load of Predator mites into all the plants 🪴 of the house, Cannabis & Non Cannabis 
… I want these suckers DEAD.
If I see ANYTHING from now till the last plant harvested in the next several weeks. I’ll be forced to shut down and bleach everything in, around the tent incl the room it’s sitting in. Find any cracks nears windows, walls, floor and caulk them. Then whenever I can start up again, follow STRICK guidelines so I never introduce them into the grow again.
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