Abstract: A method and apparatus for harvesting lettuce provides one or more harvesting heads that move between harvesting and discharge positions of the harvester. Each harvesting head separates a head of lettuce from its stem and core. Each harvesting head has specially configured fingers that secure the head during harvesting. The fingers move between open and closed positions.

Abstract: An improved method of harvesting lettuce provide a frame having ground engaging members (eg. wheels, skids, tracks) that enable the frame to move along the rows of lettuce to be harvested. Powered paddles separate each head of lettuce from its stem and root system, thrusting it through the air to a conveyor. A timing arrangement coordinates the paddle actuation with the speed at which each head of lettuce is encountered. As the head is thrust upward, a spray mist emerges from the tip of one paddle and engulfs the cavity that remains after separation from the stem and root. The spray mist can be a liquid and air mixture that contains a desired chemical to prevent discoloration in the area of the “wound” resulting from being torn from the stem and root system.

Abstract: A lettuce harvester and an improved method of harvesting lettuce provide a frame having ground engaging members (eg. wheels, skids, tracks) that enable the frame to move along the rows of lettuce to be harvested. Powered paddles separate each head of lettuce from its stem and root system, thrusting it through the air to a conveyor. A timing arrangement coordinates the paddle actuation with the speed at which each head of lettuce is encountered. As the head is thrust upward, a spray mist emerges from the tip of one paddle and engulfs the cavity that remains after separation from the stem and root. The spray mist can be a liquid and air mixture that contains a desired chemical to prevent discoloration in the area of the “wound” resulting from being torn from the stem and root system.