There is nothing that you can do now for them................in the fall when the leaves drop you need to dor dormant oil.......according to the mfg directions.........in the early spring again,,,,,,,,,,,,again following the mfg directions up to the bud stage, once the bud open, I stop and just do the trunk. I don't spray the open flowers becuase the bees visit..........so plant flowers to draw the bees for good polination. Some people use neem oil.....more expensive. The dormant oil smothers any eggs that can not be seen in the fall..........Happy summer.