Pest description and damage Female scale are semiglobular, brown or reddish, and occur at the base of new shoots. They tend to be very inconspicuous, as they may be hidden by the bark and may resemble buds. Lower branches often are infested heavily and may be killed, while upper branches are much less affected. Spruce bud scale produce a large amount of honeydew that is covered with black sooty mold.
For biology, life history, scouting, and management options
See "Scale insect" in:
See Table 1 in: