Have you tried wasp killer foam, made by retokil, you just cover the nest with it and they die. It squirts quite a long way.
James November 2005 |
wait until winter sets in and go up the ladder open the tiles/slates around the edge of the nest area and open the nest up. You wil find that if any are alive it will only be a Queen all the workers would have died. I've done it so I know.
clear the nest out of the roof. It could be a large one. then sprinkle the powder around whats left to prevent a reinfestation. Alternatively call up the local authority pest control and they MIGHT clear it free of charge.
bob October 2005 |