Mildew (יֵרָקוֹן, yerakon', greenness, i.e., pallor, as the "paleness" by affright, Jer 30:6) is properly a species of fungus or parasitic plant generated by moisture, and corrosive of the surface to which it adheres. In Scripture it is applied to grain, and refers to the pale green or yellowish color indicative of fading or withering of plants (De 28:22; 1Ki 8:37; 2Ch 6:28; Am 4:9; Hag 2:17; in all which passages it is connected with "blasting"). The Arabic applies the word yerakon to human beings as well as to corn, and thus describes the disease called in Europe yellow jaundice. Forskal was informed in Arabia by a Jew that it was the general opinion there that it is a mild breeze, dangerous to the corn, by which the ears are turned yellow. SEE LEPROSY.