. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Investigation of Scarring of Fruit by Apple Redbugs 201 It is apparently due to unusual growing conditions that the injuries caused by these several agencies produce the abnonnal bulging growth under the scar. This warting of the scars produces peculiar results in some cases (fig. 49), and may be explained by accelerated growth late in the season. A
. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Investigation of Scarring of Fruit by Apple Redbugs 201 It is apparently due to unusual growing conditions that the injuries caused by these several agencies produce the abnonnal bulging growth under the scar. This warting of the scars produces peculiar results in some cases (fig. 49), and may be explained by accelerated growth late in the season. After the middle of August apples usually grow very slowly, but occasionally favorable rains after that date force new and rapid growth. When growth is accelerated in the fruit it is apparent that considerable pressure is exerted on the old and more-or-less hardened skin of the apple. The scar tissue when it is present, being the most recently formed and tender, gives way first and new cells are formed beneath the area. In. Fig. 46. WORK of heterocordylus malinus on twenty ounce apples tough-skinned apples such as the Ben Davis (fig. 49), the new growth is forced most completely thru the newly formed scar tissue. injuries that may be confused with redbuc injury It is apparent that in certain cases in the past the work of redbugs has been credited to the plum curculio {Conotrachelus nenuphar). When the plum curculio first comes from hibernation it is a voracious feeder and attacks the young apples as soon as they are formed. The early-feeding punctures are often not accompanied with egg laying, and it was noted in these observations that such of the young fruits as were fed upon were so severely injured that they dropped. After the apples are large enough to withstand injury, the curculio punctures are invariablv accompanied. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of th
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