Do evergreen trees or Spruce trees damage Saskatoon bushes?

Question

We have a Saskatoon plantation of approximately 100 bushes some of which are 25 years old. In the past two or three seasons they have gradually become less healthy. This year they’re foliage is nearly nonexistent. They are planted near a roll of spruce trees, could the spruce trees have destroyed the fruit trees? The spruce trees have been in that spot for at least 15 years and are quite large.

Answer 1

There would not be any concern with the evergreens. This is likely a disease or pest issue.

These links may help you.

https://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/agdex811
http://www.extension.uidaho.edu/publishing/pdf/BUL/BUL0866.pdf