This 250 million year old bug might eat up the Japanese Knotweed problem in Ireland

Peter Dowdall holds out great hope for a 250 million year old bug in the fight against Japanese knotweed.

Aphalara itadori as a name might mean nothing to you, but this little psyllid could yet be the saviour of the Irish countryside.

A psyllid is a jumping plant louse and one of the most primitive of bugs.