gman wrote:
A couple of my roses have this stuff on the underside of the leaf. It
appears more often with newly planted plants. What chems can i use to
get rid of it? Hopefully something that wont do any harm to my dog,
since he likes to rome around the yard.

Here's the RHS page on Rose Rust (including a photograph)

http://www.rhs.org.uk/advice/profiles0600/rose_rust.asp

--
Henry