Spruce Spider Mites
Spruce spider mites attack foliage of spruce, fir, arborvitae, and other needled evergreens.
They are very small, often less than a millimeter in size, and are hard to see. Since they’re in the spider family, one of the signs will be small, very fine webbing.
Severe infestations will result in foliage that appears off-color.
They are most active during the cool, wet spring weather.
