Thorny vine 10-15 feet long
Hi. Thank you for your question. Could you bring in a sample of the plant that includes leaves, thorns, etc. for us to examine more closely for plant identification.
Sussex County Extension Office - 16483 County Seat Highway, Georgetown, DE 19947 - http://www.rec.udel.edu/CarvelDirections.htm
Hours are Monday - Friday, 8 a.m. - 4:30 p.m. you can bring it in and talk to our receptionist.
Once we are sure what it is, we can help you with controlling it. Best regards, Tracy