Biological process

GO:0052330, GO:0052388, GO:0052501, GO:0052518, GO:0052529

positive regulation of killing of cells of other organism, up regulation of killing of cells of another organism, up-regulation of killing of cells of another organism, upregulation of killing of cells of another organism

Any process that activates or increases the frequency, rate or extent of the killing by an organism of cells in another organism.

activation by organism of apoptotic programmed cell death in other organism during symbiotic interaction, enhancement of other organism programmed cell death by organism