Originally Posted by
justforfun
If I remember correctly, New Zealand very aggressively warns you about having fruit as you're walking to customs and has bins for you to throw any away.
+1. I think they're even labeled "Amnesty Bins" and there are specific reminders that even items provided on your flight must be discarded.
And IIRC, there are disposal bins in the customs areas in US airports, too. Though admittedly the announcements are far less aggressive as NZ/Australia.