A week ago I was using my spray bottle fertilizer and it was becoming
difficult to pump. I went and pulled out of the cabinet what I thought
was fertilizer and poured from the near empty bottle into the full
bottle and continued spraying my roses. The next day I went to visit
my roses and all the leaves were brown and curling. I went and knew
exactly what I did and confirmed I had sprayed them with the mixture
of alot of grass killer and a little of fertilizer.I took off all of
the leaves, watered heavily for two days, then fertilized. I am hoping
I do not lose the roses. Does anyone else have any other suggestion?

How very unfortunate!  And the two products were probably from the
same company with very much the same style packaging.

I suggest you call the maker of the grass killer and ask.
There are weed killers that can be used on lawns and death to anything
green compounds, which sounds like a "grass killer."

Here is a website that might be able to help.  If you scroll down to
the bottom of the page there is a phone number.
http://www.interstateproducts.com/Grounds.htm

You could also call the American Rose Society:
http://www.ars.org/

If you tell us the name of the weed killer and the active ingredients,
maybe someone can find out how they affect plants, but I think your
best bet is to call the Rose Society and the maker.

Good luck.