By Jennifer Green and Julius Goldthorpe

Japanese Knotweed causes millions of pounds worth of damage to buildings and roads in Britain every year. If attempted, eradicating the weed using traditional methods would cost around £1.5 billion pounds. But scientists have Cab International think they have come up with a natural solution, a tiny psyllid from Japan. The bug, set to be released here this year, will be the first live agent introduced in Europe to control a weed…