Includes
Pine needle scale (Chionaspis pinifoliae)
Black pine scale (Dynaspidiotus (Nuculaspis) californica)
Pest description and damage Scale insects are small (less than 0.125 inch in length) soft insects that live beneath waxy scales. These insects are often identified by the shape and size of their scales, the description of adult males and females, immature crawler stage, color of eggs, and host plant preferences. Pine needle scale insects are about 0.125 inch in diameter, elongate, white scales that are found on and feed on the needles. Heavily infested trees may appear crusted with white. Infested needles turn yellow, then brown. Twigs and branches are killed. Repeated infestations may kill trees eventually. Pine needle scales often are found with the about 0.06-inch long black pineleaf scales, which are gray to black instead of white. Pine needle scale is a serious pest of ornamental pines and may infest arborvitae, cedar, hemlock, and spruce.
For biology, life history, monitoring and management
See:
Pine (Pinus)-Pine needle scale
Management-chemical control
See Table 1 in: