Branch tips turn yellow, then brown and dry. There''s a sharp contrast between dead and healthy foliage. In the summer, pitch accumulates around the dead needles. Trees may appear bushier than normal, or crooked and distorted. Cream-colored to reddish-brown worms, up to 3/4 inch long, may be found feeding on needles. Young trees may die.
Apply an insecticide labeled for this pest, following label directions. If practical, prune out and destroy infested tips from October through January. Avoid pruning when moths are active because they are attracted to newly trimmed trees.
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