Garden Pests and Diseases: What is this growth/tumor?, 1 by Carolina_Mike

Carolina_Mike wrote:
I just bought a place with 5 acres. Along one side is an old fence and a cedar tree is growing by the fence. It is only about ten feet tall and five feet in diameter, with the classic Christmas tree shape. It appears to be a decorative type of cedar someone planted. It is not eastern red cedar, but it does have cedar berries and they are a dark blue color and quite small. Today, I noticed these large tumor-like growths on two of the twigs. Has anyone seen these before?

Mike