L. lucidum has the potential to replace mid-canopy trees in forests and completely dominate an area of forest or forest fragments if not controlled (New Zealand Weeds Web Site 1999, in Batcher, 2000). Tree privet often displaces native species in regenerating communities and if left undisturbed, may eventually dominate an area of forest (Auckland Regional Council, 1999). It is widely believed to contribute to allergies and asthma, though it does not produce any wind-blown pollen as the plant is insect-pollinated,, (Common Weeds of New Zealand).
Location Specific Impacts:
North Carolina (United States (USA))
Reduction in native biodiversity: Ligustrum sinense is believed to reduce species diversity by reducing herbaceous species and suppressing tree regeneration (Merriam & Feil, 2002).