Florida Agricultural Experiment Station upon the severity and duration of the storm and the size of the hailstones. Fortunately, hail storms are not of frequent occur- rence in Florida. The greatest menace of hail to the grove is usually the damage to the fruit in the course of development. Young fruit injured by hail is characterized by the develop- ment of more or less sunken and cracked, grayish, scabby cal- Fig. 93.-Hail injury on Satsuma orange twig and young fruits. used spots at points where the rind was injured (Fig. 93, right). Although relatively insignificant on the young fruit, the injured places develop into very prominent scars by the time the fruit attains its full development. At this time the scars may range from insignificant ones appearing as small corroded places in the rind to usually more or less circular, deeply and sharply sunken scars ranging from 3/4 to 11/2 inches in diameter. The larger scars usually exhibit more or less of a cracked, hard, gray corky tissue developed at the places of injury, although in some cases this callus tissue may slough off, leaving a fairly smooth