Answer: Spidermites leave tell-tale webbing on plants. They are tiny little pests so you may need a magnifying glass to see them. You can take a sheet of white paper out, hold it under a branch and sharply tap the branch to dislodge the debris on the branch. If you see little black spots, about the size of ground pepper, and they move, the plant has an infestation of spidermites. Depending upon the type of plant, you can use an insecticide. Or, since they love dusty, dry places, you can simply hose them off and then periodically hose the evergreens off during the summer months. This will discourage the pests.
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