Cold-acclimation increases the predatory efficiency of the aphidophagous coccinellid Adalia bipunctata

► Cold acclimation may increase the biocontrol efficiency of a ladybird. ► Acclimated beetles had the highest biocontrol efficiency at all temperatures. ► Cold acclimation increased body-size but reduced pupal survival and heat resistance. ► Acclimation should be considered in augmentative release programs.