Survival rates of lady beetles treated with diaphorin or pederin.

Kaplan–Meier survival curves of H. axyridis treated with 5 μM–5 mM diaphorin or pederin (diaphorin: orange; pederin: blue; control: grey). Data derived from two independent experiments (total of 10 cases per treatment) were pooled and plotted on a single graph. Vertical tick marks indicate the censored times. The log-rank test and the Holm–Sidak test detected significant differences between the control and 5 mM diaphorin treatment (p = 0.01315) and between the control and 5 mM pederin treatment (p = 0.00029).