It never ends. Help please.

Ok so I finally got rid of my bugs by spraying the leaves and soil with a tobbaco soap water solution...or at least i thought i did. Two days later two and a half of my plants look like they were set on fire, and the rest are alright. The soil around almost all the plants looks like it has some sort of white film, and the leaves on some of them arent all perfectly healthy looking. One has small holes on some of the leaves (i suspect a caterpillar somewhere). I still see some small black fleas I believe they are here and there but nothing compared to what there was. Im afraid to spray again for I fear thats what killed my plants. Im using Organic Soil with a 14/10 hps/fluorescent light cycle. I spray and water the leaves with my household tap water with a couple drops of lemon juice per 3-4 cups of water because my household waters ph is a bit high and when i tested the ph of the soil 4 days ago it was about 7.5-8. So i knew i needed to base it out.

mate i think you need to ditch the lemon get a water ph meater and get it to 6.0-6.3 and keep it stable .next tabbaco spray is great (at killing ) but its sooooo toxic (get a spay bottle and spay lots of water on theose leafs and make sure its all spayed off) i would recomend getting some live preators just findout what thoese balck fleas are (maby thrips?) and find the right one for you .also you want to look at useing somthing for plant stress like halo or some nice good bat guano and that should help pick em up

what is halo and bat guano, where can i get it? and plant predators of what sort? could you be a bit more specific please? and i have been spraying them to get that shit off the leaves. the leaves feel dry. and what about grinding up banana peels and putting them in the soil, that will help too right?

What type of Soil are you using and are you positive the bugs did not come from the soil you used, if so you are fighting a losing battle. They arent even 12" now, you are going to have more problems if the plants get bigger while having these infestations. Coverying the Soil with Sand is helpful sometimes as that is where they are breeding. Also make sure you are letting the soil dry out very well before watering so its not moist always on the surface. Good luck man bugs are pain in the arse

Holy Moly! Ya...ouch. You nuked them. You can buy insecticidle organic soap. Don't make your own. For vegging. And I am curious as to why you have so little dirt in those buckets. So sorry about your plants.