Where do you find wiki berries on diamond/pearl?

Question:my cousin wants a milotic and he will owe me big time if i get him the berries, :D. don't give me a link to serebii or anything like that, already tried.

Answers:
Yikes Mark! Are you talking Pokemon? Try asking in the game section Sweetie! My son plays those, but I couldn't answer these types of questions in a million years! Good luck to you!