Description, biology and damage Woolly pine needle aphids are long-legged, dark green or brown and covered with a white, woolly material. The aphid can be found in colonies among the needles. The aphid produces large amounts of honeydew (a sweet, sticky material) which often is covered by a black growth of sooty mold. Heavy aphid infestations may cause trees to turn yellowish, but otherwise cause only minor damage. Honeydew attracts ants and yellowjackets and bald faced hornets.
For biology, life history, monitoring and management
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