A citrus disease spread by a tiny insect has devastated Florida’s orange crop, which is expected to be the worst in nearly 30 years, and sent juice prices soaring on New York markets. The culprit? The gnat-sized Asian citrus psyllid, which is infecting citrus trees across the Sunshine State with huanglongbing, or citrus greening disease, which causes fruit to taste bitter and fall from trees too soon. MORE