This February I planted 1 and 2 year apples, pears, peaches and plums.

I removed the flowers so no fruit is producing. I have been spraying the Bonide all fruit, nut and orchard tree spray every 2 weeks since bloom. Trees look good healthy except some red spots on the peaches.

Is this spray necessary since I no fruit is growing?

Any other suggestions on what else I should be spraying? Since I will have no harvest, how do I know when to stop spraying for the season? Thank you all.