How do I stop twitter from posting to Facebook?

http://www.new.facebook.com/editapps.php?v=allowed
-Click the ‘x’ next to twitter to delete the app entirely
-Click ‘edit’ to change if it can change your status.
http://www.facebook.com/apps/application.php?id=2231777543
-or in the top right of this page… click “remove app”

I too made this same mistake. You have to go into your application directly and delete EVERYTHING, just as TheBox said. You can’t just “x” it out from your profile page.

If that fails (for whatever reason! can’t imagine why) then I believe you can block apps…so you could block the twitter app.