. Injurious insects : how to recognize and control them . Insect pests; Insect pests. Fig. 4So. — Adults of the Apple Aphis on twig. En- larged and narural size. Original. of injury may be obsen-ed on the expanding buiis, on which clusters of the hce are found, their work resulting in deforming the young leaves or the blos- soms, or in consid- erable injun- to the young fruit. The life histories of these various species are not the same, in spite of the similarity in their superficial ap- pearance and their initial work. The Apple Aphis {Aph i-s p0 m i) passes the entire season on the apple. I
. Injurious insects : how to recognize and control them . Insect pests; Insect pests. Fig. 4So. — Adults of the Apple Aphis on twig. En- larged and narural size. Original. of injury may be obsen-ed on the expanding buiis, on which clusters of the hce are found, their work resulting in deforming the young leaves or the blos- soms, or in consid- erable injun- to the young fruit. The life histories of these various species are not the same, in spite of the similarity in their superficial ap- pearance and their initial work. The Apple Aphis {Aph i-s p0 m i) passes the entire season on the apple. In the winter it is in the egg stage, large nimibers of the small, black shining eggs often being fotmd on terminal twigs. The first generations in summer are mng- less, but in later generations winged individuals develop. This species is charac- teristically bright green in color. with black, rather slender honey tubes. It is one twelfth of an inch long. Usually the hce observed on tender shoots and beneath curled terminal leaves belong to this species or to the Fig. -Eggs of the Apple Aphis on twig and natural size. Original. Enlarged. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original O'Kane, Walter Collins, b. 1877. New York : The Macmillan Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1912
