How do I know if the lacebugs are dead?
I realized about a month ago that all of my azaleas had really bad lacebugs. I haven't used insecticides on them for 4 years, but I did this time because the infestation was so bad. How can I tell if they are dead? I don't want to put down more insecticide unless I have to, but I have no idea how to tell if the job is done. Also, the discoloration of the leaves will never go away, right?
I have the same quesiton about scale. My camelia also had a heavy infestation of tea scale so it got the insecticide too. Again, how do I tell if they are dead?