We believe that differential searching activities of 4th instar larvae and adults of C. undecimpunctata could have synergetic effects on field pest suppression, increasing by this way the success of this species as an agent of biocontrol. From a practical point of
view, we suggest that sexually mature adults of C. undecimpunctata should be released in the field early in the season, given that it is well established that aphidophagous ladybirds lay mostly their eggs over a relatively short period of time just early before peak aphid infestation (Hemptinne et al., 2000).