hiw do i get rid of white flys on baby plants?

I have dots on my leaves I believe them to be from white fly's how do I get rid of them.

Insecticidal soap or neem oil.

If they take hold they are almost impossible to get rid of.
2 types of white fly ,sounds like you got the small ones which are the bad guys, if the room is warm they multiply by the thousand every few days .
Like gnats they dont affect the final weight too much just very annoying .
As said earlier neem oil every few days plus a lot of hanging yellow strips.