Can't figure out what goes wrong...

I’ve switched soils, mixes, meters…Do I have an angry/jealous employee, lol? I am out of things to blame.

pH is 6.5-6.8.
Totally organic mix Build-A-Soil Craft blend and 1:1:1 peat, olly’s compost, perlite.
35 ppm water
Tents are new but I doubt its off-gassing? AC infinity tents…I would think off-gassing material would have ceased to be used a decade ago…

Some plants still look perfection, majority do not. Veg was perfection. Tends to happen in flowering the last 3 cycles. The Triangle Kush and crosses get the worst…and so does the Sherbet crosses.

Temp and humidity are in check…the worst tent did pop a vent and get to 92 one day. These are breeder tents not for consumption so a systemic was used from Bayer: Imidacloprid. I also did a root dunk with Captain Jacks insecticide just to make sure fungus gnats were non-existent and there wasn’t some pest I can’t see on the roots…

Could it be the Captain Jacks? Is Pyrethrins I know you need to watch it when spraying them especially with aerosol bombs…Used it at 3 tbsp a gallon. Watered with it once.




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I think the Captain Jacks is being used incorrectly and is most likely the culprit… Also you did not detail the mix or the timing exactly on Imidacloprid ? The Jacks is poison to beneficials. You should definitely reevaluate your IPM program… Cheers !!!

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I think these folks can help your medium issue, in a Living Soil set up.

I used their fungus gnats solution, and it worked fantastic, using the smallest package.
I never experienced that type of side effect, from any of their products I used.
For bugs, find the Once N Done thread, it has been amazing for me, this past 2 years. I only made a half portion, of what the recipe calls for.
I use 1-2 ounces per gallon of water.
When I bring our out door ornamental plants in for winter, we get a bloom of fungus gnats, mites, every year…until I made Once N Done!
Once every 4-6 weeks when indoors, I spray the top of pots and whamo!!
No flyers during the winter, from those pots!
All the best to you project!!

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I run totally organic as well. Those suckers are fried with something. Gotta second the jack dead bug likely being the culprit. Ive used it in the past, but at a much smaller dose than you mentioned. And only as a light foliar spray.

The easiest way to get rid of gnats is 4-5 days of BT as a soil drench. But if youre in all organic soil, you should be doin teas 1-2x a week. And good compost will have nematodes. And nematodes will massacre gnats.

Organic IPM is something a lotta people overlook, but its super important. I only rec stuff like jacks as a last resort. Lemme know and I can send you my IPM routine I stole from a really badass grower back in the day.

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Im going to Second @BackyardBoogie420 on the BTI inoculation Some of the bug sprays will toast your leaves Safers End all will do this too sometimes i hate having to spray a plant with anything but plain water in veg.This product will kill all the larvae in that soil in put a couple drops in your watering can it specifically targets larvae so you can break and interrupt the breeding cycle.Use this stuff and in a week or two you will see ancient flys that are going to croak off and cant make more.I havent had a dirtgnat problem in 3 years straight using this stuff.I cant even catch them in my yellow stickys anymore.

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Too much collateral damage with the pesticides… I’d try infusions of compost extract (get some nice worm poop or well aged compost, stir a handful around in some water for a few minutes and then water that in. Don’t need to futz with brewing or any of that equipment). In the meantime, try to avoid continually adding more and more stuff in trying to fix the problem. Focus on adding life, and supporting the life you have in the soil, and avoid anything which aims to kill!

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I did the Imid a week before flower. I was using BTI from BAS and NoFly before I did the chems on seed runs. I will remove using both and go back to live beneficials. I thought I could save a little on the breeding program, but I am guessing it may have cost me.

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Hey man I agree with some of these comments referencing your ipm but what exactly are you temp and humidity? Looks like airflow is out of whack too… using exhaust fans?

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That was my first thought, my plants were doing great in veg and not great during flower when I had them in room that was hot with not so much airflow, even with fans and an exhaust fan. I had days where my tent hit 92 also .

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In one tent of many for 2 days it got pretty hot because a vent line busted (high was 92 during the day), but this is goin on to a lesser extent in the other tents as well…Plants look just fried by something…At first I thought it was pH, but then I started thinking it was my preflower pyrethrin root dunk. I was willing to be a lot ‘rougher’ with these because its only breeding and the live beneficials I use for consumable runs aren’t cheap. I guess I need to baby my seed runs like I used to because these are totally fried. It is 100% something someone is adding because its happened with much different proven batches of soil…The way the tips burn is very odd. Like greyish and very odd shaped…sort of reminds me of root rot. I tend to think the pyrethrin’s just fried the root. They always look starving for MG at first, get raised edges that curls inward, some of them looked a little waxy, then they just yellow up and don’t get better.

Temps run steady 69-84.
Humidity 38-58%. Generally only over 50 when it rains.

4 inch fans in 6 in out.

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When I found the Arbico products, I had been using BT like for years faithfully, in my medium mix, in tea strainer balls, hanging in my water tote.
Then one day, it was so over whelming, with gnats, I ordered their smallest package, mixed it all up per label, as you can not open it and save some.

I applied that stuff to all my plants, to my medium storage totes that were full of freshly mixed medium, that got drenched also.
Took the rest to inoculate all the house plants also.
The effect was amazing, and fast acting, one of the best items, I ever used.
Now a few years later, BT is working as it always had for me again.
Well that an Once N Done keeps them beat back for me anyway.
hell, I may order one, just as a preventive measure, LOL.

looks like burnings and chlorosis bs of overfeeding
my suggestion to flush and feed anew

I usually use those with a non mobile nematode as well, hypoaspis miles, and sometimes rove beetles if I can find them at a decent price…I wish I could just learn how to grow all of them I meant do it about 15+ years ago but here I am, killing plants trying to save on overhead, lol.

This was a great read and I will be making this.

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great post!!
I find being a cheap phuck, is a lot of work!
And I do not ever regret using bottled nutrients, or prepackaged plant food, nor salt fertilizers, for growing my plants. It was a learning curve.
But I do, love the savings.
My wife is a book keeper, retired now.
She loves to follow my costs ( I did ask her to) and it has really been the driving force, for me, just to see if I really needed all of it. I did not.
All the best to your endeavors!!

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Care to share that IPM?

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Daily spray in veg. Rotate Regalia, BT, essential oil spray like Insect Control or Zerotol, citric spray like Nuke Em or Dr Zymes, Neem + soap, Nettle/native weed FPJ, and freshly brewed compost tea. In the event of an outbreak, Spinosad or Pyrithrin. But never use either more then a couple times a year, or the bugs will build a resistance against it.

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Just wanted to update. This is what photo toxicity looks like. I knew pyrethrins could cause it, but Imidacloprid does as well. These will be removed from further use.

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