. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. Fig. 405. that feeds upon the eggs. By the time it has consumed them all it has reached full growth, when it changes to a pupa, and, after remaining in this condition a few days, the fly escapes by eating a passage through the top of the scale. Where this parasite does not occur, it may be introduced with advantage by taking into the locality branches infested with scales which are known to have been parasitized. This useful insect destroys immense num- bers of the scales, and is doubtless one of th
. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. Fig. 405. that feeds upon the eggs. By the time it has consumed them all it has reached full growth, when it changes to a pupa, and, after remaining in this condition a few days, the fly escapes by eating a passage through the top of the scale. Where this parasite does not occur, it may be introduced with advantage by taking into the locality branches infested with scales which are known to have been parasitized. This useful insect destroys immense num- bers of the scales, and is doubtless one of the chief natural agencies provided to check their undue increase. A species of mite, Oribates aspidioti Ashmead, has been found feeding on the eggs of this scale-insect. It is about one-fiftieth of an inch long, of an elongated, flattened form and a dark reddish-brown 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 Saunders, William, 1836-1914. Philadelphia, J. B. Lippincott & Co
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Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
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Keywords: ., bookcentury1800, bookdecade1880, bookpublisherphila, bookyear1883
