I have been having problems this season with Scale insect on Junipers. I have a basic spray from a local garden centre which is for Scale insect, greenfly and other bugs, but it doesn't seem to be working. I remember talking to a neighbour who said that modern sprays aren't as potent as there older counterparts.
Its becoming a worry as some branches have been sickening and dying back.
I think the problem has been made worse by keeping them in a greenhouse over winter.
Any suggestions of decent products or practices to help?
I didn't find the right solution from the Internet.