I have tracked down 16 packs of 600 Isomate GRB twist ties in Winchester VA. These are distributed through Helena and the number to contact is 540-667-2371. The warehouse manager is Jamie Schriver (got this over the phone so I have no idea how to actually spell this name). There should still be time to get these out this year. This approach only reduces future pressure, it can not cure already infested vines.