Whether the supply of leafy greens is up or down, consumers still want salad or lettuce for adding to a sandwich or tortilla wrap. But when the supply of lettuce is down, the cost goes up.

In an article Dec. 4, 2018, on Marketplace:

When we pull everything off the market like we did with romaine, what we’ll start to see is people moving to other leafy greens.

– Agricultural economist Mark Manfredo, professor and director of the Morrison School of Agribusiness