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Category Archives: Plant and Tree Disease

Why Winter is a Great Time to Have Your Trees Pruned

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The grass is no longer in need of cutting and the leaves have all been raked up. While it seems all your yard work is finished for the year, there is no better time than winter to prune your trees, especially oak trees. While most pruning can be done any time of year, wound closure […]

Everything You Need To Know About Needle Cast Diseases

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A number of needle cast diseases are affecting fir and spruce trees. Both Rhabdocline and Swiss needle cast can affect Douglas fir. On spruces, including Colorado blue and Engelmann, the needle casting disease is called Rhizosphaera. Rhizosphaera also affects white spruce and Norway spruce, but it is less common and generally only happens when they […]