Thanks. Just ordered some Acephate. Checked all the orchids in the neighborhood of the infected ones and didnt find any signs of more. Not sure where they came from, none of the orchids infected or in that area are new orchids.
Agree. I use Imidacloprid (4A) and acehpate (1) combined. Works like a charm as a first round. Acephate stinks to high heaven, but is effective. Wear full PPE. Second round 15 days later I do Permethrin(3) and 15 days later a do Safari (4a)
I have a recurrent problem with scales that show up every year and a half to two years.