How about "farmerette"?

Did anyone notice how difficult it was on last night's Real Time for Bill Maher to come up with a "name" for a female person who tills the land and grows crops for a living? He showed a photograph of a farmer whose crops went unharvested because there were no Mexican workers to pick them. "Here's a farmerwoman," he said, somewhat hesitantly, then stumbled over a few more attempts to identify her.

Finally, Ben Affleck--bless him--leaned over and told Maher that the word he was looking for was "farmer." "Yes, but--she's a woman," Maher replied, still totally clueless. In the next segment, he went on to talk about how much we value gender equality in the U.S.

Maher's sexism leaks all over the place, but you can't confront him about it.