I have tried many ways of getting rid of bugs, tried different chemicals and dissinfect thr whole room, changed all my soil, even left the room for months before using it again, bloody thrips still came back.
If you have trouble getting rid of some bugs I really suggest trying
neem oil, make your own
neem oil spray, few days after spraying you will notice the effect, the bugs are still there but they will behave weird, the
neem oil messes with their head or something, their nerve system I think.
I still had bugs for a while after using
neem oil but I didn't care because they are confused and stopped destroying my plants.
If you keep spraying weekly, slowly you will see them dissapear.
You have to keep spraying for a while because of the eggs.
Also you can flush your medium with a
neem oil solution to affect eggs and also the plant itself will absorb the
neem oil in some way so that when bugs eat your plant some of the active part of the
neem oil gets in their system.
Really amazing.
If like me you have had problems getting rid of bugs and tried many things, I really really suggest just trying
neem oil, I had so much more succes than a lot of expensive products, it really does the job and works on many different pests.
You can also use it for prevention, doesn't matter since it's bio and cheap.