Thousands of hectares of farmland in Ghana's Upper East Region are threatened by an army worm invasion, the private Joy FM radio reported on Saturday. Joy FM reported Ministry of Food and Agriculture officials as saying that 44,000 out of about 66,000 ha in the Bawku East and West districts were under attack by the pests, which destroy crops. The ministry said that although it was tackling the problem, controlling the worms was virtually impossible because they were reportedly coming in from neighbouring Burkina Faso.