Invasive species are non-native species that can cause harm to the environment, the economy or human health. Invasives come from all around the world. As international trade increases, so does the rate of invasive species introductions.

Invasive species threaten nearly every aspect of our world and are one of the greatest threats to New York's biodiversity. They cause or contribute to:

• Habitat degradation and loss;

• The loss of native fish, wildlife and tree species;

• The loss of recreational opportunities and income;

• Crop damage;

• Diseases in humans and livestock; and

• Risks to public safety

Information above provided by: Department of Environmental Conservation - Invasive Species - NYSDEC

Impacts of purple loosestrife:

• Dramatically reduces plant diversity in wetlands and threatens rare and endangered wetland plant species.

• Negatively affects wildlife: many wetland animals that rely on native plants for food and shelter decline, and some species disappear locally (e.g., baltimore checkerspot butterflies, marsh wrens, least bitterns).

• Alters ecological function: large grouping shortens the period when diverse flowers are available to pollinators, and thick growth can hurt recreational uses like boating, fishing, and birdwatching.

• Can reduce wetlands ability to store and filter water 

• Large infestations form persistent seed banks and woody roots that make long-term control difficult and increase management costs.