With all those varieties growing in the sane vicinity, pollination should not
be a problem--nectarines are a peach varient so that is probably self fetile--I
trust you have a greenhouse to grow your orange in--Ohio is not orange
territory. And since fruit trees are very susceptial to attack by all sorts of
insects and diseases you had better get in touch with your local extension
service and get the IPM program for your area--unless you follow the Integrated
Pest Mangement spray program you may not get much in the way of decent fruit