Saw that page, pretty certain they are. Trouble is these aren't in a normal ball kind of swarm, they've got inside the wall already, so not easily collected. Will contact for advice anyway.
Back in the flat now and I'd say about 80% of them are now dead, unfortunately. Still looks like they're coming and going from the wall, but many fewer. A bit of a relief.
Saw that page, pretty certain they are. Trouble is these aren't in a normal ball kind of swarm, they've got inside the wall already, so not easily collected. Will contact for advice anyway.
Back in the flat now and I'd say about 80% of them are now dead, unfortunately. Still looks like they're coming and going from the wall, but many fewer. A bit of a relief.