Insect and Spider Identification: CLOSED: Are these aphids? The white creatures and even the brown, 1 by lotstolearn

lotstolearn wrote:
These bugs seem to be destroying the leaves on my apple trees, which are more decorative at this time in an espalier. I just found them this evening after seeing the spots for a couple of weeks. I learned from here that I have to look under the leaves at times, and luckily while doing that I found these white bugs on this stem. Any help on what I should use to kill lthem - if that is the appropriate course. I don't recall seeing these spots last year.