Farms may only be gathered from by one Villager at a time. Farms are very weak and do not hinder movements of friendly or enemy troops. An enemy Villager can take over a Farm and begin harvesting it simply by right clicking it. Farms can be automatically reseeded if they are queued in the Mill. Farms that are built before upgrades (e.g. Horse Collar) are researched do not gain the food bonus. If the research is completed while a Farm is being built, the food bonus applies to that Farm.