. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. HEMIPTERA: THE TRUE BUGS 91 It was formerly supposed that to a large" extent each kind of plant was subject to attack by a special kind of plant louse, but after careful studies were made of the structure and life histories of the plant lice, it was found that very often a single species of the insects may attack sev- eral species of plants. One of the most striking examples of this ability to live upon various host plants is that of the Melon Aphis, which infests an
. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. HEMIPTERA: THE TRUE BUGS 91 It was formerly supposed that to a large" extent each kind of plant was subject to attack by a special kind of plant louse, but after careful studies were made of the structure and life histories of the plant lice, it was found that very often a single species of the insects may attack sev- eral species of plants. One of the most striking examples of this ability to live upon various host plants is that of the Melon Aphis, which infests an extraor- dinary variety of host plants. These include vegetable, field, and fruit crops, as well as many cultivated flowers and an extraor- dinary number of weeds and other wild plants. It has been known by such common names as Cotton Aphis, Orange Aphis, and Dock Aphis. It is so com- monly destructive to melons, cu- cumbers, and related plants that it is now generally called the Melon Aphis, although in cotton-growing regions it is known as the Cotton Aphis. The life history of this insect is not very different from that of the Spring-grain Aphis already described. The winter is passed both in the egg state, and in that of the viviparous females. Reproduction begins early in spring and continues throughout the season, the insects multiply- ing with marvelous rapidity and migrating from time to time from one food plant to another. The ability of the species to develop upon so great a variety of hosts renders it. 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 Weed, Clarence Moores, 1864-1947. Boston ; New York : D. C. Heath & Co.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbenefic, bookyear1910
