Abstract
Nymphs and adults of Orius tantillus (Motschulsky), a predator of Thrips palmi Karny, were reared on three different prey: (1) live adults and nymphs of Tyrophagus putrescentiae (Schrank), (2) frozen eggs of Ephestia kuehniella Zeller, and (3) live 2nd-instar larvae of T. palmi. The survival rate and development time of the predator nymphs and the survivorship and egg production of the predator adults were compared among these three types of prey. Frozen eggs of E. kuehniella were found to be a suitable alternative prey for O. tantillus.