Page last updated at 12:59 GMT, Thursday, 23 July 2009 13:59 UK

Can an insect control knotweed?

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Scientists have identified an insect that keeps the 'superweed' knotweed under control in its native home of Japan and think it could do the same in Britain.

A public consultation on whether or not to introduce the plant-eating predator in the UK is being carried out by Defra and the Welsh Assembly before a final decision is made.

Tim Muffett reports.

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