my spider plants have a scale infestation and the usual treatments doesn't work. (Soaking in water with a wee bit of washing up liquid)
Because it is an indoor plant you can use a systemic insecticide like Provado ultimate bug killer as there will be no chance of it affecting bees. Systemics are taken up by the plant and go into the sap which the scale insects feed on. It is the only guaranteed way to completely clear a bad infestation.
thank you Bob, how safe is it for humans to be in the same room as a treated plant?
As long as you spray the leaves when there is no-one in the room and don't touch the plants until the spray has dried I would say there is as close to zero danger as it is possible to get.
thank you Bob, I'll get some of that stuff.
All the best