I haven't had any aphid infestations yet. (cross my fingers) The mites I think are harder to deal with. You can get (if you don't already have one) a 60x hand scope that you can look at the leaves and see if you can find where they are most packed in. Then cut off those leaves and get rid of them. Good luck with the fight JS.
I've had 2 aphid infestations so far..
Hired some ladybug thugs to clean house. Worked out really well. Good luck!