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My alberta spruces get brown spots late in the season. What is causing this?

April 26, 2017Alberta Brown causing late season spots spruces

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My alberta spruces get brown spots late in the season. What is causing this?

1 Answer

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A. More than likely it is spider mites. One way to find out, is to do the white paper test. Take a sheet of paper put it in the bush near the brown spot, shake the branch and little red spiders should fall on the paper and start running around. Foliar sprays can control this problem.