Gee whiz, Sandy, I noticed no one has resopnded to your post. I should have done so before. It's not like the folks here to let a question go unanswered.
Fruit trees should always be pruned in late winter. Cherries need very little pruning, unless you want to maintain a specific shape. Prune dead wood and undesireable growth first (branches that rub another branch or grow contrary to the prevailing growth). Then a little judicious pruning to reduce a little weight here and there.
The most beneficial thing to spray is dormant oil. Find it at a garden center, I've noticed that chain stores don't bother to stalk it. In early spring, make one application just as the buds begin to "break," that is, as the pink just starts to show through the outer skin of the buds. You could make one application earlier than this, but this one is most effective. I would think that where yo are, there should be plenty of roadside stands. Don't be shy about asking what sort of spray programs they use, but my attitude about pruning and spraying is "less is better." I don't like spraying chemicals on my food. The dormant oil is organic and safe. Also, don't take lower branches off until they start to get in the way of mowing, as they help the root system get established. Look into organic ways to fertilize, like mushroom compost, bone meal, blood meal, etc. These will make for healthier, more pest and disease resistant trees. Enjoy!