(SacBee) - Rumbling through an olive orchard, a machine harvester towers over a row of trees, stripping the small green fruit and shooting them into a rapidly filling container. This may be the future of farming in an era of worsening labor scarcity. In the last 10 years, new olive growers and olive oil producers have been planting olives in super high-density grids and switching from hand labor to mechanized labor.