What is the solution for spider mites on Alberta Spruce and other Evergreens?

The answer that came first tomind was a spray of horticultural oil but I checked the label (always read the label) and find that it can damage the needles when sprayed on evergreens. I’d recommend a spray of Spinosad which is relatively new to the arsenal of insect killers. Here’s a link to more on Spinosad…very interesting stuff! http://en.wikipedia.org/wiki/Spinosad At Hewitt’s we sell it in a product called ‘Captain Jack’s Dead Bug’. It is a very safe biologically produced spray that gardeners (especially organic gardeners) should know about.

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