Items of Interest:

Woodland Invasive Species Program Launched to Promote Healthier Forests in 22-County Area (Mar 31, 2009)
Ohio Department of Natural Resources.
Nearly $1 million in federal landowner assistance funds and technical advice from a forester are available in a 22-county area in central and southeastern Ohio for woodland owners interested in controlling invasive species.

Invasive Species in Ohio: Pathways, Policies, and Costs (Oct 2008)
Union of Concerned Scientists.
A new report finds that invasive species such as the emerald ash borer and zebra mussel already are causing significant damage in the state of Ohio. While the total cost of these non-native species is currently estimated at hundreds of millions of dollars a year, preventive legislation could significantly limit their economic and environmental impact.

Firewood Alert: It is Illegal to Move Firewood (PDF | 684 KB)
Ohio Department of Agriculture.

Find Experts and See State Specific Threats:

Invasive Species Experts - Ohio
Aquatic Nuisance Species Task Force.

Nonindigenous Species List - Ohio or Display Species List by Taxonomic Group (select State)
DOI. USGS. Florida Integrated Science Center.
Includes fact sheets, maps and collection information.

State Noxious Weed List - Ohio
USDA. NRCS. National Plant Data Center. PLANTS Database.
Designated legally noxious plants.

Pest Tracker - Ohio
USDA. APHIS. Cooperative Agricultural Pest Survey. National Agricultural Pest Information System.

Forest Threat Summary Viewer - Ohio
USDA. FS. Eastern Forest Environmental Threat Assessment Center.
See what threats (invasive plants, insects and diseases) are in my state.