Tiny white flies...

inside one of my Lily rosettes :eek: There isn't many and they don't seem to be in any others. What are they?? Do they do any harm, if so, how do I get rid of them?? :confused:

 

could it possibly be whitefly? David.

 

I think they might have gone...well off that Lily anyway :rolleyes: I flushed them out with the hosepipe and there doesn't seem to be anymore....yet?????? Will keep watch

I've got enough problems with slugs, I don't need flies aswell

Do they hurt the plant Dai?? If so, how should I get rid of them in future??