bugs all over blueberry plant

I'm pretty new to gardening and never had to deal with pest before so dont even know where to start with this. I have some sort of little bugs all over my blueberry plant. I noticed little white bits all over it that looked like fluff, I originally thought it was just bits of fluff from something like a dandelion or something. Today it is covered in these fluff bits and I looked on the underside of the leaves and there is loads of little black insects all over it. So I'm assuming the the white bits are actually some sort of casing/egg that the bugs were in.

My blueberry bush is between my raspberry and tayberry bush but there doesnt seem to be any the bugs on those leaves.

Does anyone know what kind of bugs these are and how to get rid of them?

 

Its aphids, the white bits a shed skins.
Black fly.

Spray them, with an insecticide for edible plants.