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

The 30th annual National Public Lands Day (NPLD) is on September 28, 2024! National Public Lands Day was established in 1994 and held annually on the fourth Saturday in September. This designated day is traditionally the nation's largest single-day volunteer effort and is focused on resilience and restoration. Volunteers can plant trees and native vegetation, build and refurbish trails, remove trash and invasive plants, repair bridges, restore historic structures, monitor endangered species, and restore habitats. Volunteer and find a NPLD event near you. See also:

• National Public Lands Day: 30 years of Care and Community (USDA, Forest Service)
• National Public Lands Day (DOI, National Park Service)
• National Public Lands Day (DOI, Bureau of Land Management)

Changing climate conditions have bearing on every aspect of biological invasions, in some cases worsening existing problems. Climate change is creating new pathways for invasive species to be introduced, such as shipping routes that open up as sea ice retreats. Warmer temperatures can allow existing invasive species to expand their range into habitat that is currently too cool. Similarly, impacts to native species and people may change if new conditions affect invasive species abundance. Climate change may make existing invasive species control tools less effective, such as aquatic barriers that require minimum water flows.

Is something attacking your boxwoods? Don’t wait! Check your boxwood plants for signs of the invasive box tree moth (Cydalima perspectalis) before it's too late. A box tree moth infestation is lethal to boxwood plants. Watch the video to learn more about what to look for and how to save your boxwood plant.

The yellow-legged hornet was first detected in the U.S. when a beekeeper close to Savannah, GA, found an unusual hornet on his property and reported it to the Georgia Department of Agriculture (GDA). On August 9, 2023, APHIS confirmed the University of Georgia’s identification of this insect as a yellow-legged hornet. Learn more about yellow-legged hornet lookalikes and how to report potential sightings of this new species.

Environmental DNA (eDNA) has gone from new science on the block to a star of the show. With just a water, soil, or snow sample, ecologist Tommy Franklin and fellow scientists at the Rocky Mountain Research Station are detecting rare aquatic and terrestrial species by identifying the genetic material they leave behind.

Scientists at the Rocky Mountain Research station recently used eDNA to preserve headwater bull trout populations in a warming climate, track white nose syndrome — a killer bat fungus, and reveal the role of human transport in the spread of invasive northern pike in the Columbia River basin. A recent article highlights eDNA research at the station and features National Genomics Center Director Mike Schwartz.

The Georgia Department of Agriculture (GDA) announced, in coordination with USDA and the University of Georgia, confirmation of the detection of a living yellow-legged hornet (Vespa velutina) in Savannah, Georgia. This is the first detection of a live yellow-legged hornet in the open U.S., which was confirmed on Aug 9, 2023. GDA is asking the public to report any sightings of the yellow-legged hornet, a non-native hornet species, that, if allowed to establish in Georgia, could potentially threaten honey production, native pollinators, and our state’s number one industry - agriculture. See more information about the yellow-legged hornet, including how to report sightings.

Researchers have been working on a solution to fight citrus greening disease and may have found one in the unique antibodies found in camels, llamas, and alpacas.

Fire-friendly grasses have invaded new habitats around the world. Five species (cheatgrass, cogon grass, gamba grass, molasses grass, and buffelgrass) are considered among the most problematic grasses, threatening to transform entire ecosystems.

Officials issued a quarantine to control the invasive species, which devours vegetation, damages structures and can carry a parasite dangerous to humans. The invasive giant African land snail—one of the most damaging snails in the world—has returned to Florida for the third time in the state’s history. Florida's Broward county giant African land snail quarantine prohibits people in the 3.5-square-mile area from moving the giant African land snails, and they also must not transport certain plants, soil, compost and yard debris that could contain snails or their eggs.

Scientists have long warned that Hawaii’s cover of nonnative shrubs is kindling waiting to burn.
See also: Additional Invasive Species related articles

Learn how the U.S. government is responding to the Hawaii wildfires affecting Maui and the Big Island.