MrStinkyanswered grow question 3 years ago The photo isnt clear enough to say one way or the other but if you have bugs in the soil you can top dress with diatonaceous earth (dont put too much) and it rips their tiny bug bodies open and they die of dehydration and shoukd clesr up in a few days.
Nematodes SF work at clearing out the larvae in the soil, you just water a tiny bit of the egg powder in and give it a couple of days.
In the mean time, get yellow stickies from garden center cause they will help until DE / nems do their thing.
Otherwise, if you are not obsessed with microbial life you can water with a hydrogen peroxide (H2O2) dilution which is supposed to clear them out (I was too chicken to try that).