BYLINE: Lauren Quinn
URBANA, Ill. — Bathed in an otherworldly purple glow, James Santiago points to a curled leaf at the base of a spinach plant. “This is an issue we saw all…

BYLINE: Lauren Quinn
URBANA, Ill. — Bathed in an otherworldly purple glow, James Santiago points to a curled leaf at the base of a spinach plant. “This is an issue we saw all…