Ohio

It is now illegal to sell, grow, or plant Callery pear (also known as Bradford pear) in Ohio because of its invasive qualities and likelihood to cause economic or environmental harm. There is no requirement for the removal of existing plants, but the Ohio Department of Natural Resources (ODNR) Division of Forestry encourages control and removal to benefit native forest ecosystems.

A new botanical survey of southwest Ohio found that invasive species introduced to the United States over the past century are crowding out many native plants. Biologists from the University of Cincinnati are retracing two exhaustive surveys conducted 100 years apart to see how the Queen City's plant diversity has changed over the past two centuries. They focused their attention on undeveloped parts of cemeteries, banks of the Mill Creek and public parks that have remained protected from development during the last 200 years. The study, titled "The rise of nonnative plants in wooded natural areas in southwestern Ohio," was published in June in the journal Ecological Restoration.

Last month PPQ's Asian Longhorned Beetle (ALB) Eradication Program in Ohio celebrated another victory—the ALB quarantine is officially 7.5 square miles smaller! This invasive beetle from Asia is a destructive wood-boring pest that feeds on maple and other hardwoods, eventually killing them. After completing their final round of tree inspection surveys, the ALB staff reported no sign of the beetle in a portion of East Fork State Park in Clermont County, Ohio.

"Inspecting ALB host trees is painstaking work, and the staff meticulously survey for the pest," said ALB National Policy Manager Kathryn Bronsky. "It’s been three years since the last time we've lifted ALB quarantine restrictions in Ohio, and this is the first removal of the initial area placed under quarantine. That makes this success especially gratifying."

In September of 2014, the Ohio General Assembly granted the Ohio Department of Agriculture (ODA) the exclusive authority to regulate invasive plants species. Under the law invasive plants are defined as plant species that are not native to Ohio whose introduction causes or is likely to cause economic or environmental harm, or harm to human health as determined by scientific studies. After nearly two years of stakeholder outreach, new rules have been established and are effective as of January 7, 2018. 

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