mugo pine shrub

Question

I have white spots on my mugo pine. They are well established but are showing a decline with the white spots. How do I treat this and is it a major problem?

Answer 1

This is likely Pine Needle Scale.
Here is a link with more information.

http://msue.anr.msu.edu/news/first_generation_pine_needle_scale_crawlers_should_be_hatching