Least-squares means of multigenerational fecundity<sup>a</sup> following two-day exposure of <i>M. persicae</i> to sublethal concentrations of imidacloprid.
a<p>24 h old nymphs were placed on treated potato leaf discs and fecundity of each resulting adult was recorded every 2 days until it died. In the succeeding generation, 5 randomly selected 24 h old nymphs were tracked and fecundity of the resulting adults was recorded every 2 days until they died. G<sub>0</sub> is initial generation, G<sub>1</sub> is progeny of G<sub>0</sub>, G<sub>2</sub> is progeny of G<sub>1</sub>, and G<sub>3</sub> is progeny of G<sub>2</sub>. G<sub>0</sub> nymphs were exposed to treated discs for two days and all aphids were thereafter exposed to untreated leaf discs.</p>b<p>Progeny per adult data were log transformed before analysis. Backtransformed means are presented. Values followed by different letters are significantly different (LSD, α = 0.05). SEM values are not backtransformed.</p>c<p>Mean total number of nymphs produced over four generations.</p>d<p>G<sub>0</sub> nymphs did not survive to adulthood when treated with 25 µg L<sup>−1</sup>. This concentration was not included in the analysis.</p
