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Special note: Field Guide to Invasive Species in Ireland [2018; PDF, 6.92 MB]

The Pennsylvania Invasive Species Council identifies the following plants, insects, aquatic animals, pathogens, and other species as most invasive and having the greatest potential negative impact for Pennsylvania.

It is important to stop new outbreaks before they start. You can protect Idaho from invasive species by taking action. By the time an invader is readily noticeable and begins to cause damage, it is often too late, resulting in an expensive removal of the established invader. If we detect new outbreaks early and act quickly to control them, we can avoid many of the environmental and economic losses caused by invasive species.

Contains common invasive plant species found in Alberta and Western Canada.

Firefighting personnel can unintentionally transport invasive species on clothes, gear, and equipment from the lower 48 to Alaska. They can also unintentionally spread invasive species within Alaska, from infested areas to clean areas. Aquatic invasive species can also be spread any time water is moved from an infested area to another waterbody, when seeds, propagules, or larvae are carried in small amounts of water or trapped in the water-handling equipment. This booklet is a tool to help identify some of the invasive species of greatest concern in Alaska and also suggests BMPs that will help firefighting personnel avoid introducing or spreading them. It also identifies four invasive species that should be reported to authorities and how to report them. See also: Invasive Plants Publications for more resources.

ESA was pleased to welcome an esteemed panel to discuss a short history of policy and responses to previous invasive species on May 21st. The speakers discussed pathogens and how ecological research can inform policy and contribute knowledge to prevent the introduction and spread of invasive species.

Wildlife Forever has teamed up with more than 2,500 organizations across the nation, including Federal, State, and Canadian organizations, to stop the spread of invasive species with the Clean. Drain. Dry. initiative. This national campaign educates outdoor recreational users on how to prevent the spread of invasive species. Strategic communications, marketing, outreach and educational services provide access to consistent messaging and resources for local communities to implement prevention programs.

A regulation was adopted in 2014 that prohibits or regulates the possession, transport, importation, sale, purchase and introduction of select invasive species. The purpose of this regulation is to help control invasive species, a form of biological pollution, by reducing the introduction of new and spread of existing populations.