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Invasive Species - What's New on NISIC's Site

See What's New on the NISIC's Web site by using our RSS feed (learn about RSS). Contains items of interest that have been added to our site, in order of most recent post date.

View related information: Resource Search - What's New
Resources can be filtered by Subject, Resource Type, Location, or Source. If you wish to search for species-related resources and use refinements, enter the species name first before selecting the terms.

Recent News

  • Controlling an Introduced Invasive: On the Search for Ailanthus' Achilles Heel

    • Jan 2023
    • USDA. FS. Northern Research Station. Rooted in Research.

    • Ailanthus altissima (tree-of-heaven) is a rapidly growing invasive tree species introduced to the United States nearly 200 years ago. Today, this species is a common invader in many forests across the nation. Scientists with the Northern Research Station have identified a unique biological control measure for managing Ailanthus—Verticillium nonalfalfae, a native soil-borne fungus. Check out this latest issue of Rooted in Research that explores how Verticillium can reduce Ailanthus populations.

    • Post Date
      Jan 10, 2023
  • Battling Exotic Ant Pests in American Samoa

    • Jan 5, 2023
    • USDA. National Institute of Food and Agriculture.

    • Invasive species pose a threat across the United States and its territories, but they can be especially challenging for the U.S. South Pacific territory of American Samoa. Among the invasive pests menacing the territory are several non-native fire ant species. 

    • Post Date
      Jan 06, 2023
  • Live European Green Crabs Confiscated from Seafood Market; Species Remains Prohibited in Washington

    • Dec 29, 2022
    • Washington Department of Fish and Wildlife.

    • In early December Washington Department of Fish and Wildlife (WDFW) Police received information that a Seattle market was selling live “green crabs”. The Seattle seller had bought the live green crabs from a seller in Massachusetts with the intention of selling them for crab stock and soup. The crabs were destroyed by WDFW Police officers.

    • Post Date
      Jan 05, 2023
  • Invasive Species Handbook: A Resource for Educators - Grades 3-8

    • Dec 2022
    • Utah State University Extension; United States Department of Agriculture.

    • This handbook includes six chapters that discuss invasive species and their environmental, economic, and health impacts. It also reviews pathways of invasive species spread and prevention, monitoring, and control. The handbook is a resource for educators teaching children in grades 3 through 8. Learning objectives, activities, and vocabulary are also included.

    • Post Date
      Dec 20, 2022
  • The Five Drivers of Extinction: Invasive Species

    • Dec 6, 2022
    • Defenders of Wildlife.

    • Over recent decades, globalization has led to an increase in the international flow of people and goods, bringing people together but also bringing together species that have never coexisted before. Species that are introduced and successfully colonize areas outside their natural ranges are considered ‘invasive’ and can have devastating impacts on species native to the region. Invasive species can cause the decline or extinction of native species, outcompeting them for food, water and space, preying upon them or introducing them to new diseases.

    • Post Date
      Dec 19, 2022
  • South Dakota GFP Seeking Comments on Draft Aquatic Invasive Species Strategic Plan

    • Dec 13, 2022
    • South Dakota Game, Fish and Parks.

    • The South Dakota Game, Fish and Parks (GFP) is seeking comments on the draft "Aquatic Invasive Species (AIS) Strategic Plan." All individuals interested in AIS management in South Dakota have from now through December 31, 2022, to provide suggestions and comments on the revised plan in its current form. The draft AIS strategic plan can be found online at:

    • Post Date
      Dec 15, 2022
  • Invasive Box Tree Moth Found in Lenawee County, Michigan

    • Nov 7, 2022
    • Michigan Department of Agriculture and Rural Development.

    • The U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) has confirmed the detection of box tree moth (BTM) (Cydalima perspectalis) at two residences in Clinton located in Lenawee County. Although not a threat to Michigan’s natural resources, extensive feeding from box tree moth can lead to significant defoliation and death of ornamental boxwood.  In May 2021, potentially infested boxwood plants were shipped to retail locations in several states including six in Michigan. The pest was then identified in three of the six Michigan facilities. It is not known whether the box tree moth populations detected in Clinton are linked or if the pest entered the state through another pathway.

    • Post Date
      Dec 14, 2022
  • Invasive Black Carp Established in Parts of the Mississippi River Basin

    • Dec 13, 2022
    • DOI. United States Geological Survey.

    • Black carp, which are an invasive fish species in North America, are now known to be established in the wild in parts of the Mississippi River basin. A new study co-authored by the U.S. Geological Survey is the first to identify an established population—meaning they are naturally reproducing and living to adulthood— of wild black carp in any location across the U.S.

      When a black carp is captured in the wild, it can be reported to the USGS Nonindigenous Aquatic Species database. That tool compiles information on and can be used to track the status of other aquatic invasive species as well. The USGS is involved in many invasive species projects across the U.S. and its territories. Learn more by visiting the USGS Invasive Species Program website or the USGS invasive carp website.

    • Post Date
      Dec 14, 2022
  • APHIS Announces New Common Names for Regulated Lymantria Moths

    • Dec 14, 2022
    • USDA. Animal and Plant Health Inspection Service.

    • USDA’s Animal and Plant Health Inspection Service (APHIS) is replacing the common name for regulated Lymantria moths. APHIS will replace "gypsy moth" (Lymantria dispar) with "spongy moth" and "Asian gypsy moth" (L. dispar asiatica, L. dispar japonica, L. albescens, L. postalba, and L. umbrosa) with "flighted spongy moth complex." This change aligns APHIS with the Entomological Society of America’s "Better Common Names Project" and the scientific community. Spongy moths are significant invasive forest pests. They can defoliate hundreds of species of trees and shrubs and harm our country’s natural resources.

    • Post Date
      Dec 14, 2022
  • Spongy Moth Population Increases for Third Consecutive Year in Wisconsin

    • Dec 2, 2022
    • Wisconsin Department of Agriculture, Trade, and Consumer Protection.

    • The Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) caught 202,300 spongy moths (formerly named gypsy moth) in 10,044 traps this summer as part of the federal Slow the Spread of the Spongy Moth Program. "Wisconsin weather trends have allowed the spongy moth population to grow over the last several years," said Michael Falk, DATCP's trapping coordinator.

      Spongy moth is an invasive pest that has been spreading westward since its introduction to North America. Caterpillars feed on the leaves of many species of trees and shrubs, especially oaks, and can cause severe leaf loss when feeding in large numbers. For more information, call (800) 642-MOTH (6684), email, or visit

    • Post Date
      Dec 09, 2022