Anyone have and effective remedy against racoons?

I have a backyard vineyard in town and they are
devouring my fruit. They are getting through the
bird netting like it is not even a problem for
them.

I have a "have a heart" trap and in the last two
weeks have caught 4 of them. I caught two
earlier in the season for a total of 6 so far. I
take them about 6 miles away. Is this far
enough? How large a family do they usually have?