nematode
... that a nematode kills the mole crickets it parasitises by infecting them with a specialist bacterium?
... that a <b id="mwA8o"><a href="./Steinernema_scapterisci" id="mwA8s" rel="mw:WikiLink" title="Steinernema scapterisci">nematode</a></b> kills the <a href="./Mole_cricket" id="mwA8w" rel="mw:WikiLink" title="Mole cricket">mole crickets</a> it parasitises by infecting them with a specialist bacterium?