You really can't invite or un-invite frogs. They're pretty clueless.
Tadpoles don't really bother the pond too much unless you get a gazillion of
them. If you have fish many of them end up as lunch.
About all you can do is net the eggs out of the pond, put them in a bucket and
deposit them in a natural waterway.
k30a
and the watergardening labradors
http://www.geocities.com/watergarden...dors/home.html