Observer Reports
Beginning in 2024, South Carolina will be one of only two states to ban the nursery sale of Bradford pear trees and any other pear trees grown on the commonly used Pyrus calleryana rootstock.
The ban on sales is set to begin Oct. 1, 2024, which is the annual nursery licensing renewal date in South Carolina. Ohio will become the first state in ban the threes beginning in 2023.
The additions of Pyrus calleryana — or Callery pear — along with three species of Elaeagnus to the State Plant Pest List met the approval of state agency representatives and the director of Clemson’s Regulatory and Public Service Programs. The clock is now ticking on a grandfathering period of a little more than 3 years for the nursery industry to comply with the new regulations by ceasing sale of these plant species.
Callery pears have nasty thorns that can damage everything from tractor tires to livestock and also damage the ecosystem by crowding out native plants. While the ban on these plants will make them illegal to sell or trade within South Carolina, it’s important for the public to know it will not be illegal to possess them on their property or to keep what they have.
Bradford pears were once touted as sterile, but it turns out that if pollen from any other Pyrus species gets into Bradford pear flowers, the trees can make viable seeds. Those seeds are then eaten by birds and other animals and spread across the Southeastern landscape, contributing directly to one of the worst invasive plant species in the region — the Callery pear.
These are classified as noxious weeds, defined by an agricultural or other governing authorities as a plant that is injurious to crops, ecosystems, humans or livestock.
Not only do Callery pears have nasty thorns that can damage everything from tractor tires to livestock, but they also damage the ecosystem by crowding out native plants while providing little to no food for insects.
Typically, when a species is added to the State Plant Pest List, the change goes into effect immediately and it becomes illegal to move or sell it that same day. But since the Bradford pear and other similar cultivars are being actively sold, officials felt a transition period was required for the benefit of industry.
The efforts have been spearheaded by the South Carolina Invasive Species Advisory Committee, which is required by law to include members from Clemson’s Department of Plant Industry (the State Plant Regulatory Official), the USDA State Plant Health Director, a Clemson Cooperative Extension representative and at least two at-large representatives from other stakeholder agencies, such as the S.C. Department of Natural Resources, S.C. Forestry Commission or S.C. Department of Agriculture, and also includes the South Carolina Green Industry Association.
Bradford pears are not native to the U.S., but have been widely planted in the Southeast for years.