Overrun With Horse Radish.

Horse Radish can be a bit invasive if not controlled.Many people that now take on old unattended allotments find that what was once a small patch of horse radish has now become much larger and a problem.The best way to remove it it to treat it with round up weed killer applied from a watering can.However if you wish to go down the organic route you should rotovate or dig over the area and cover with black plastic sheeting for 6 months then remove the sheeting and fork the area over.