No matter what happens with immigration reform, the United States will likely suffer a shortage of farm labor in coming decades, reported the Washington Post. The story was based on a study titled "The End of Farm Labor Abundance" by Edward Taylor, professor in the Department of Agriculture and Resource Economics at UC Davis, UC graduate student Diane Charlton and Antonio Yúnez-Naude, professor in the Center for Economic Studies at El Colegio de Mexico in Mexico City.

“It’s a simple story,” Taylor said. ”By the mid-twentieth century, Americans stopped doing farm work. And we were only able to avoid a farm-labor crisis by bringing in workers from a nearby country that was at an earlier stage of development. Now that era is coming to an end.”

Since it is unlikely that another labor pool can be found, and also unlikely that American demand for fresh fruit, vegetables and nuts will decline, farmers could turn in greater numbers to mechanical options, such as shake-and-catch harvesting machines, the study said.