. Cranberries; : the national cranberry magazine. Cranberries. The Effect of Hailstones F. B. Chandler Hailstorms have caused consider- able dama£^e to cranberries in the past and according to Dr. Frank- lin (Mass. Bui. 402, p. 28-30, 1943) have usually occurred in a rather definite hail center. This year Mas- sachusetts has had at least five hailstorms, each of which was gen- erally outside the "hail ; On the whole, these storms did not do as much damage as some in previous years. All of the storms occurred after the blossoming per- iod, therefore the uprights were woody and
. Cranberries; : the national cranberry magazine. Cranberries. The Effect of Hailstones F. B. Chandler Hailstorms have caused consider- able dama£^e to cranberries in the past and according to Dr. Frank- lin (Mass. Bui. 402, p. 28-30, 1943) have usually occurred in a rather definite hail center. This year Mas- sachusetts has had at least five hailstorms, each of which was gen- erally outside the "hail ; On the whole, these storms did not do as much damage as some in previous years. All of the storms occurred after the blossoming per- iod, therefore the uprights were woody and only a few uprights were broken. In the past the hail storms have been earlier in the season and nearly all of the up- rights bave been broken off in some bogs. In some hailstorms many of the berries have been knocked off the vines but this year the number of berries removed was not extremely high. Foliage damage was also slight. The greatest damage from hail is the scarred fruit. There may be several marks on a berry and as many as ten "hits" by hail were found on a few berries on bogs where stones from two storms had fallen. The marks on the fruit may be small or large and they may be circular or very long and narrow (see pictures). Generally it is easy to distinguish hail marks from mechanical injury and rot. The skin of the berry around the hail injury usually develops a lit- tle red pigment before the rest of the berry begins to color. The center of the hail injured spot is usually a darker brown than a spot resulting from rot or mechan- ical injury. Cork almost always develops below the skin of the fruit where the hail has made an injury. Cork can be identified by cutting a thin slice of the skin in the injured area where a few dry brown cells will be found. Rot will be wet, with little evidence of cell structure. Mechanical injury var- ies with the time lapse since the injury, but does not appear like hail. Counts of the number of berries which have been hit w
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