Volatile‐mediated defence induction in potato plants: transient suppression of <scp> <i>Myzus persicae</i> </scp> and enhanced recruitment of <scp> <i>Harmonia axyridis</i> </scp> and <scp> <i>Aphidius gifuensis</i> </scp>

Brief exposure to aphid-induced HIPVs triggers rapid, transient induction of indirect defences in neighbouring plants. This creates a time-limited window immediately after exposure (0-48 h post exposure) during which aphid performance is reduced and attraction of natural enemies is enhanced, aligning with a difference in volatile profile compared with that observed 48 h later (48-96 h post exposure). Our findings highlight the ecological relevance of volatile-mediated plant communication and its potential for temporally precise defence induction in neighbouring plants. © 2026 Society of Chemical Industry.