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U.S. Department of Agriculture
National Invasive Species Information Center
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Invasive Species Resources

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Great Smoky Mountains National Park - Hemlock Woolly Adelgid
DOI. National Park Service.
Great Smoky Mountains National Park - Non-Native Invasive Plants
DOI. National Park Service.
Gypsy Moth Digest

USDA. FS. Northeastern Area State and Private Forestry.

The Gypsy Moth Digest is a database containing information about gypsy moth defoliation and treatments at the national level. Treatments include those funded by the gypsy moth Suppression, Eradication, and Slow The Spread (STS) programs.
Gypsy Moth in the Southeastern U.S.: Biology, Ecology, and Forest Management Strategies (2017)

USDA. Forest Service; Southern Regional Extension Forestry. Forest Health Program.

See also: Gypsy Moth for more resources
Halting the Invasion in the Chesapeake Bay: Preventing Aquatic Invasive Species Introduction through Regional Cooperation (Dec 2007)
Environmental Law Institute.
A report by attorney Read D. Porter that examines coordination on aquatic invasive species (AIS) prevention among the Chesapeake Bay states. The report focuses on prevention-related legal authorities in Virginia, Maryland, and Pennsylvania in particular, and recommends actions to improve regional cooperation both within the existing regulatory frameworks and through potential amendments to state laws and regulations to enhance prevention.
Health Topics - West Nile Virus
New York City Department of Health.
HealthFinder.gov - State Health Departments

DHHS. Office of Disease Prevention and Health Promotion.

Provides links and resources for State Health Departments, many of which have information about Zika virus and West Nile virus with specific state information.
Help Slow the Spread of the Emerald Ash Borer
Connecticut Department of Energy & Environmental Protection.
The Emerald ash borer was first found in Connecticut during the week of July 16, 2012. Since that first find in Prospect, EAB has been found in many other parts of the state, particularly in towns in central and western Connecticut. DEEP, the CT Agricultural Experiment Station, USDA APHIS PPQ and the U.S. Forest Service are working together with local partners to slow the spread of the insect and to take steps to minimize its impact. This will be a long-term effort on the part of all involved.
Help Us Slow the Spread of White-nose Syndrome (PDF | 856 KB)
USDA. FS. Eastern Region.
Hemlock Woolly Adelgid (PDF | 437 KB)
Cornell University. Cooperative Extension of Suffolk County. Horticulture Diagnostic Laboratory.
See also: Tree and Shrub Insect Pests for more fact sheets.
Hemlock Woolly Adelgid - Map Resources
USDA. FS. Northeastern Area State and Private Forestry.
Provides distribution maps and predicted future range expansion.
Hemlock Woolly Adelgid In Maine

Maine Department of Conservation. Maine Forest Service. Forest Health and Monitoring Division.
Home Grown Facts - Greater and Lesser Celandine (PDF | 1.0 MB)
Cornell University Cooperative Extension. Oneida County.
See also: Home and Garden - Weeds for more fact sheets
Horticulture Program - Invasive Plants

Maine Department of Agriculture, Conservation and Forestry.
How to Identify and Control Dogwood Anthracnose

USDA. FS. Northeastern Area State and Private Forestry.
How to Identify and Manage Dutch Elm Disease

USDA. FS. Northeastern Area State and Private Forestry.
Hungry Pests - Pest Tracker

USDA. Animal and Plant Health Inspection Service.

See what states have a federal quarantine for any of the targeted Hungry Pests, and identify which pests or diseases are at greatest risk due to a suitable habitat. In addition to federal quarantines, state-level quarantines might apply see State Summaries of Plant Protection Laws and Regulations (National Plant Board).
iMapInvasives - Invasive Species Identification Guides

Nature Conservancy. iMapInvasives.

Includes a variety of published guides and internet resources (videos) for use in identifying invasive species that are found in the participating states, provinces, and regions of the iMapInvasives network. The iMapInvasives network is currently comprised of various U.S. states and one Canadian province (Arizona, Florida, Kentucky, Maine, New York, Oregon, Pennsylvania, Vermont, Virginia, and West Virginia, and in Canada - Saskatchewan).
iMapInvasives: Sharing Information for Strategic Management
Nature Conservancy. iMapInvasives.
i is an invasive species reporting and data management tool that is on-line and map-based. The primary focus for iMapInvasives is to track invasive species locations and management efforts. iMapInvasives tools can be used by citizen scientists, land owners, natural resources managers, and others who are working to prevent, control, or manage invasive species.
See also: The iMapInvasives Network is comprised of organizations that host the iMapInvasives Network database in their respective state or province.
Imported Fire Ants
Tennessee Department of Agriculture.