When do I spray fruit trees to keep from getting worms and such?

Question

I live in Central Indiana, and have inherited several trees. Apple, pear, cherry... when do I spray them so I won't have worms and such in them?
Thanks

Answer 1

There are several different types of spray. The most common one is the Sulphur one. As for when to spray, before the buds break open, but not after the flowers.

You can also spray again, if you like, but I would not, when the petals have fallen and before the fruit forms too large.

If you look on the container of the spray you are going to use, it will give you information on your particular situation.

Answer 2

Do it before the trees start to leaf out if you are using dormant oil spray.