Gnats - Flowering: Repot or Treat or..?

So i come into posession of four Critical Kush clones. They all about two weeks into flip and topping out at about 14 inches in height. These were vegging under 1000 watt blurples so they were kept small.

In any case, while a find like this is rare for me, especially cause they were free.. i want to grow them out. These clones are second gen from the same seeds i grew out last year so to have the opportunity to grow the same family out is a first.. and the kush is fiaahhh..

But..

They all fucked up. Loaded with gnats from bad soil. So far ive done the following:

Shook the plants up outside and removed top 3 inches of soil
Neem drenched soil and foliar (yesterday)
Laid out stickies of course
Diatomaceous Earth arriving in mail - will apply to soil today

One question i have.. is it too way late to repot these in hopes of getting a better ammended soil to these plants since theyre now in flower? I have limited experience growing but know enough not to screw with flowering plants too much and a transplant may stunt or reverse these this far in. I dont want to lose everything by doing it. At least if i can contain the situation, the skyborn numbers seem to be down today, hopefully i can just finish these out and minimize the damages. Though while the plants look totally unkept, they do look relatively healthy except for some leaf damage and some other weird deterioration on a few lower older fans. Prob related to the infestation.

Repot or treat or Repot and still treat?

Thanks

Gnats are easy to treat so I'd just keep the soil. I stopped getting gnats when I put a Hot Shot pest strip in my greenhouse. Slow release dichlorvos, love it! I've also used Mosqito Bits and those work too. That's a bacteria based solution.

Transplanting in flower is no big deal if plants are small, but you have no reason to do it, it's not like you can pull the old dirt off them, that would probably stunt them.

If it really bothers you ,, you can carefully remove as much soil as you can from them then dunk them in a bucket of water and maybe some mycos if you have them ... The soil should easily be washed out of the roots then they can be replanted in new soil... Gnats are not that big of a problem so this may be a waste of time but it's an option if your anal about gnats

PS - Great soil can still produce gnats. In no way does it mean your soil is bad!

farmerfischer said:

If it really bothers you ,, you can carefully remove as much soil as you can from them then dunk them in a bucket of water and maybe some mycos if you have them ... The soil should easily be washed out of the roots then they can be replanted in new soil... Gnats are not that big of a problem so this may be a waste of time but it's an option if your anal about gnats

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I'm skeptical that you can do this in flower and not stunt them. Have you done this?

go to your local hardware store and ask for mosquito larvae killer,its a granular/powder you mix with water and water your plants with...it works 100%....one product i use is called AUQUABAC

https://www.arbico-organics.com/product/aquabac-bti-mosquito-control-granular-bacillus-thuringiensis-israelensis-bti/472

Yes but I wasn't the far into flowering.. a week or two I think I was... I did this year's ago.. the plants stalled abit but bounced right back with no issues... Today's polyhybrids and hybrids are probably more susceptible to herming though... So Im not sure on the success of this option.. still an option either way... He could just try one and see .... I personally don't have issues about gnats.. they are (like you said) easy to treat...

Mosquito dunks work good too...

Gnatrol application is what I use. Haven't seen a pesky gnat in years. Sand and or peroxide some use. Some use stockings over the container. Not while wearing them.

I top dress with sand sometimes ... It cuts off the egg laying .
If clones are small ( next time you get ) and say in a solo cup , I top dress with perlite , it does the same thing , so then when I transplant the perlite goes in the grow container with new soil.

Sticky traps ( yellow ) can be hung on pot or laying on top of soil to catch adults.

Lots of ways.

Bugeye said:

PS - Great soil can still produce gnats. In no way does it mean your soil is bad!

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Very valid point. Ive seen that before..

Thanks to the lot of yas. Seems the consensus is treatment and thats the path i was leaning. Keep up with the neem and stickies for the air and top dress a layer of DE and perlite and dry them out for a few days.. see what happens. Ill just make sure to ph my runoff for awhile. Shouldnt hurt. Just never had an infestation like this before..

Layin down that DE makes that soil look like a D&D triple chocolate muffin covered in powdered sugar..... dammmnnnnn..