In dense stands seedlings and saplings may be cut and dropped on site, creating fuel for future fires. Buckthorn seedlings appear to be very vulnerable to fire, perhaps due to their poorly established root structure. Fire will top kill a mature plant, but resprouting does occur. Uprooting of smaller seedlings with a weed wrench is another non-chemical control. McHenry County, Il.
Product label suggests avoiding the spring sap flow.
Frill application is also effective. This information is not an endorsement of particular products or practices. Pesticide use must follow label directions and applicable state and federal laws.