First off Sweets, congrats on your harvest. Some weed is better than no weed at all.
Now with the root-bound situation I learned from Relaxed Lester that it really doesn't pose a threat if the roots are healthy. He's had great results in root-bounded small pots which was part of my decision in going strictly 2lts. I don't know much about mites but I do know that gnat larva feed on roots. Adult gnats are really just a nuisance but you have to get rid of them to prevent them from laying eggs/larva in your soil. So if gnat larva is eating at your roots this could be the origin of your issues.
Mind you, this is just one likely scenario & I'm sure other members will give you some more possible diagnoses.
If you think it might be the gnats here's a home remedy that works. I've had 100% success with it.
Now with the root-bound situation I learned from Relaxed Lester that it really doesn't pose a threat if the roots are healthy. He's had great results in root-bounded small pots which was part of my decision in going strictly 2lts. I don't know much about mites but I do know that gnat larva feed on roots. Adult gnats are really just a nuisance but you have to get rid of them to prevent them from laying eggs/larva in your soil. So if gnat larva is eating at your roots this could be the origin of your issues.
Mind you, this is just one likely scenario & I'm sure other members will give you some more possible diagnoses.
If you think it might be the gnats here's a home remedy that works. I've had 100% success with it.
One quart h2o (I use tap), One cap of Hydrogen Peroxide, & a small drop of liquid Dish detergent > put in a spray bottle > Shake well > Spray the leafs & medium generously once a day for 3 days > Gnats & Larva gone.