Apterous green peach aphids (GPA), Myzus persicae (Sulzer), collected from plots of potatoes treated with azinphosmethyl (AM) and reared in the laboratory on leaf disks of potato, produced ca. 28% more offspring than GPA from untreated plots. The rate at which offspring were produced for the subsequent two generations did not differ for either group of GPA, suggesting that the increase in reproduction noted in the parental generation resulted from direct exposure to AM. Stage-specific developmental times and reproduction of fourth-generation aphids did not differ for either group, indicating that a strain of GPA resistant to AM had not been selected that had a higher rate of reproduction. GPA reared in the laboratory on leaf disks of potato that were treated with a 550 ppm solution of AM produced ca. 10% more offspring than GPA on untreated disks, whereas GPA on leaf disks of potato treated with concentrations higher and lower than 550 ppm did not produce more offspring than GPA on untreated leaf disks. High survival and fecundity of GPA reared on leaf disks of potato in the laboratory demonstrated that this method was suitable for laboratory studies but results did not necessarily apply to field conditions.
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Lowery et al. (1986) studied this question.