Ohio State University. Extension.

USDA. FS. Southern Research Station. CompassLive.

Callery pear (Pyrus calleryana) can be found across most of the eastern U.S. and in a few western states as well. The nonnative tree was brought to the U.S. in 1917 by a USDA employee searching for a blight-resistant species that could be bred with European pear to increase fruit production.

The most common Callery pear cultivar is the Bradford pear. In the last two decades, this near-ubiquitous landscaping tree has been identified as a serious invasive pest. A new publication examines herbicide treatments to control the spread of Callery pear. Lead author J.T. Vogt is a research scientist with the USDA Forest Service.

Nature Conservancy.

Since 2013, the Cool Green Science blog has covered the best of conservation science: innovative solutions to the most pressing conservation problems, field reporting on the latest research, adventures from biologists, opinion and commentary, and plenty of bizarre and cool creatures.

Rhode Island Department of Environmental Management. Agriculture.

U.S. Department of Agriculture.

USDA established a unified emergency response framework to address Huanglongbing (HLB), a serious disease of citrus that affects several U.S. states and territories. This framework will allow USDA and its many partners to better coordinate HLB resources, share information and develop operational strategies to maximize effectiveness.

CAB International. Invasives Blog.

Climate change is having an important influence on invasive species. The increase in temperatures, rainfall, humidity and drought can facilitate their spread and establishment, creating new opportunities for them to become invasive. For additional information, see the following CABI resources:

• Climate Change and Biodiversity
• CABI Working Paper: Climate Change and Invasive Alien Species (Nov 2010)
• Invasive Species and Global Climate Change (2022, 2nd Edition) (requires login 🔒)

Texas A&M AgriLife Extension.

Cornell University.

USDA. APHIS. Plant Protection and Quarantine.

USDA. ARS. Tellus.

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.

DHHS. Centers for Disease Control and Prevention. Morbidity and Mortality Weekly Report.

North Dakota Department of Agriculture.

Utah Department of Agriculture and Food.

Colorado Parks & Wildlife.

Colorado Parks and Wildlife (CPW) announces additional zebra mussel veligers found in the Colorado River and Government Highline Canal after increased testing. With these additional detections, both the Highline Government Canal and the Colorado River meet the criteria for being considered “positive” for zebra mussels.
See also: Colorado Parks and Wildlife announces discovery of zebra mussels in the Colorado River and the Government Highline Canal (July 16, 2024), nearly two years after the invasive species was first detected in the state. 

Louisiana State University. AgCenter Research and Extension.

Louisiana is home to some of the most destructive invasive species found in the United States. The LSU AgCenter has long worked to monitor and manage these non-native insects, weeds and wildlife. To better understand and control invasive species, the LSU AgCenter is developing a Center of Research Excellence for the Study of Invasive Species. The Louisiana Board of Regents approved the creation of the center on Sept. 20.

USDA. Animal and Plant Health Inspection Service.

USDA APHIS' Plant Protection and Quarantine (PPQ) provides national leadership and coordination in crop biosecurity and emergency management. As the lead Federal agency for plant health emergencies, PPQ works cooperatively with national and international plant protection organizations; Federal, State, tribal, and local agencies; universities; industries; and private entities in developing and implementing science-based framework designed to provide optimum protection against invasive pests and diseases.

University of Hawaii. Tropical Agriculture and Human Resources. Integrated Pest Management Program.

Provides general information on pest hosts, distribution, damage, biology, and management in the form of pest summaries.

University of Hawaii. Tropical Agriculture and Human Resources. Integrated Pest Management Program.

University of Hawaii. Tropical Agriculture and Human Resources. Integrated Pest Management Program.

University of Hawaii. Tropical Agriculture and Human Resources. Integrated Pest Management Program.