Resource Search

Invasive species are well known for their huge ecological costs, but they also bring a massive economic burden with sociological, environmental and health impacts. New research led by the University of Aberdeen and the University of Auckland in collaboration with CNRS, France has established that invasive species have cost the New Zealand economy almost $100 billion in the last 50 years. While damage costs remain high, this total includes spending far more than most other countries on pre and post-invasion management techniques relative to its GDP.

Most invasive insects are hidden away for the winter, but you still might encounter them when you split wood, move outdoor furniture indoors, or admire evergreen plants while on a hike.  Learn more about invasive pests you may come across and how to report them.

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

This guide is intended to assist with identification of invasive plants and provide information on controlling these problem plants. Included are both non-chemical means of control as well as information on proper use of herbicides where chemical controls are needed. The choice of control measure depends on the size and nature of the infestation. If dealt with early enough, invasive plant problems can often be eliminated by non-chemical methods. However, a herbicide-based approach may be required to control an infestation that has become well established or widespread.