Soft shell possibly scale Question

Just about in my garden when I noticed the yews were dark real dark blackish compared to new growth. Close by Chinese holly had same discoloration. Upon inspection it seems I have a lot of creatures that are about 1/2 inch long and about 1/8 an inch wide. The are divided in half with a light brown and white. They are soft to touch.
I'm wondering if more light and air may slow them down? First time any thing like this in 30 + years.
S Jersey USA Zone 5 Shade
This article is posted under fair use rules in accordance with
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.