if there are gnats in the room, then
there is larvae in the soil. If larvae is in the soil
they eat tender roots unseen, every time, all the time, full time.
Marijuana weeds are very resilient, often not even complaining of nibbled roots.
Microbe Lift, 20 dollars, 5000 applications, one drop/per gallon of water, organic, non toxic weekly
applications starting last summer eliminated all thrips and gnats in less than 10 days.
You never had mites..ever? Or just 10 years of not playing with that bowshit ever again?
for real, no mites, and I dare them too. My grow room is in a steel barn sealed/locked/insulated section 12x40 while the remainder of he barn floor is dirt. my tractors, 4 wheeler, implements, lawn mower, brush hog, piles of composting dirt, piles of new prom mix, bay door often left open daily, free range chickens in and out, dirt bathing in new and old dirt. a real mite trap by popular standards.
I grew first in 7 tents in my home office with no mites seen, then built the barn/grow space. no mites ever. knock on glass.
never took in a cut/clone, no grow buddies ever in there/or here, I dont change shoes, clothes etc before entering. My dog can visit the room anytime she likes. I dont kill spiders or snakes in or out of the spaces.
I saw my first mite on a house plant the wife brought home. I went to work on them big time. Found ANY oil will drown and kill them.
They prefer low brix unhealthy leafy material, they die in a bag/on a plant when o2 is displaced by c02, I saw them curl and cease at 8k ppm. I brought my room to 10k in the past when I had a million gnats over night, checked back in an hour or so and they were all dead. I dont do that because It kills all the air breathers in there, and most are my friends obviously.
I figure if there no unhealthy plants in my rooms, no house plants/veggies, no low brix laggers, no dead air, no rh/temp swings, and I dont loiter at a grow store/dispensary....I wont ever see a mite again.
keep on doing what you've always done to keep on getting the results you always have.