Yes cut to healthy tissue and
apply a cane sealer(elmers)

It could be one of many things though.
Canker - strong suspect.
stem borer - unsual on bare roots.
dehydration - strong possibilty.

Make sure the roses get plenty
of fluid. In pots they typically have
to be watered every day! unless
you had some of those water sorbent
crystals added.

--
Theo in Zone 5
Kansas City

"Venu Shelat" wrote in message
...

I planted about 7 bare roots in pots this year & 6 have some dark
(almost black) canes with a singular hole at the top Makes it look like
a straw of sorts. What do I do with this? Do I cut it off? Treat or
leave alone?

I am in zone 6b Central New Jersey. & the JB's have found me already.
Will be spraying with Ortho this weekend.

Thanks for all your help

V