Roses...........what can you tell me?????

I planted lots and lots of climbing and other kinds?.
1 plant never made it. 1 plant has been 1/2 dead for years.
The other have been growing like crazy. I even have one that is mostly thorns!!!!!

When the flowers die.....a "ball" is left????? When do I prune? How much?
One has a "icky green and white something" all over it.

Ok so I planted them all years ago, watered them a couple of times, put up, trellis? and they keep growing!!!!!!!! Now they get watered on weekends....by my hubby????

HELP!!!!!!!!:ee k:

Thanks!!!!!!