Hi, we have lost a plant in our garden which was covered in white fluffy stuff, I knew it was some sort of pest but on closer inspection I cant actually see a bug or anything, just the fluff. After doing some googling I am thinking either Mealy bugs or wooly aphids but I am not 100% sure. It has killed a plant and now spread to another plant and done the same thing, I fear its going to spread through my entire garden.
Does anyone know how to get rid of these pests.