Just getting annoyed with the random farms that the AI places around that I cannot seem to be able to get rid of.

https://forum.ee2.eu/viewtopic.php?p=24038#p24038

Basically, you need to select any unit with the attack ability, keep the ALT key pressed, then right mouse click on a farm to attack and destroy it.

in my version (disc, very old) of the game, I used to "bomb" roads by selecting trebuchets (catapults or whatever) and making them "force attack" the road, but it didn't work with the crops. Just don't mind them. I wonder if they are exploited in multiplayer, like what if a player hinders your ability to build stuff by placing roads...