I'm having one of my worse grows ever right now and it's because of fungus gnats. The larvae munch on the roots and you'll see it in the leaves. I have one plant in particular that's especially affected. Not sure why they favor it more over the other 2. Anyway, I've been using
azamax and mosquito dunks. The dunks I don't think are doing much but the
azamax works if you do it regularly. I had to up how much I was running through the pots after awhile tho. Instructions say 1 pint of mix per gallon of media and I did 1 quart per gallon a week ago. I haven't seen any flying around since then but that one plant is starting to droop again which means they're eating roots again and I'll have to hit em with
azamax again today. I have 3 sticky traps that are only 2 weeks old and completely covered with the little pricks.