I live in aurora, co... I have two apple trees in my yard and every year most of the apples have little worms in them, and they end up ruined, how can I get rid of these worms and is it too late to do anything this spring... thanks in advance

You have to spray them in the early spring.

You have to spray them in the early spring.
Yes I agree

You need to use a sulfur spray and oil (Dormant) spray in early spring before there are any leaves.