Travian crop finders is a kind of programs which is served to search specific area-fields. They are also calls bots and there many of them. You can search through travian crop finder section on the main site.
At the moment there are many different crop finder’s for travian. Some of them are online and works from servers and some offline.
Here is nice example – http://asite.110mb.com/
Soon will be much more here, and at the moment you can look more crop finder for travian