What does the FarmVille Harvester do?

Quite obviously, it harvests. The FarmVille harvester allows you to harvest a 2×2 section of crops with one click. It uses 4 fuel and awards you the same amount of coins you would have gotten otherwise.

How does the FarmVille Harvester work?

Once purchased, the FarmVille Harvester adds a second option to the Plow menu. Selecting this new option will allow you to harvest 2×2 crops at a once.

The harvester is used to harvest your crops, and not to be used on grass and dirt. Once your crops are ready, click on the harvester and choose “harvest”, then go over the crops and click.

You’ve mixed up the use of the harvest with the tractor – the tractor plows grass and plots of land after you’ve harvested the crops.