I have received notification from the NBU that EFB has been discovered within 3 km of my apiary (in central London). I have two hives a metre apart with vegetative barriers between them to hinder drifting. I took honey off the smaller Warre (3 boxes) which was in the (long) process of converting from a National brood box in June. The other Warre is now on 6 boxes and has not been opened since the spring. As EFB is stress induced, I am hoping my hives are not infected.
I am anxious about what interventions the Inspector is going to demand. I fear there is little sympathy for the Warre system in London in general and by inspectors. Does anyone have any tips?