Prey-mediated effects on life-table parameters of <i>Coleomegilla maculata</i> when fed <i>Trichoplusia ni</i> larvae that were reared on Cry1Ac/Cry2Ab-expressing <i>Bt</i> cotton leaves or the corresponding non-transformed cotton leaves.

<p>The experiment started with 30 larvae per treatment.</p><p>Means in a row followed by the same letter are not significantly different (P>0.05).</p><p>*Pre-imaginal survival = Number of pupae/number of first instar larvae×100.</p><p>†Chi-square test with Bonferroni correction (adjusted α = 0.0083).</p><p>‡Mann-Whitney <i>U</i>-test with Bonferroni correction (adjusted α = 0.0083).</p><p>§One-way ANOVA.