National Geographic : 1973 Mar
avoid this situation farmers turn to science. A low flying crop duster sprays defoliant, the vines die, and the harvest takes place. Clanking down seemingly endless rows near Idaho Falls, a mechanical monster delicately un earths potatoes and sifts out soil and vines. As a conveyor feeds the harvest to a truck, a rider tosses out potato-size clods that managed to fool the machine. Thriving in the fertile Snake River Plain, almost eight billion pounds of potatoes pour forth each year to satisfy the nation's hunger for French fries and tasty bakers.