I don't have an experience in crossing them, but my feeling is go for it. They both grow in similar conditions in a similar environment. Just make sure you can provide the right growing conditions, because both plants are from the North and grow in humid soil. I wouldn't recommend culling plants until they are mature, because I have no idea if gender will be inherited in the F1 plants. If you do the cross, please let us know what happens. I can't wait to hear!

Well I am a novice at best at this so, is there a basic tutorial anywhere online on how to cross rubus species? What kind of equipment would I need?I would like to go as low tech as possible.

I know there are 2 berries hardy to zone one . Are these the ones you are refering to ? My question is where can I get some ? you can read Carol Deppe's bok on plant breeding. Kent Whealy's book on seed saving would give you a source for bags to keep unwanted pollen out . You would need a kamal hair brush available at the art department in most large dept stores. you may need a small pill bottle and some alcohol to sterilize the brush between crosssings. and some tags and a small notebook to record your crosses .Do not depend on memory for that .

I have a lot of Korean Wineberry and also some fall raspberries, but so far they do not seem to hybridize naturally. I would like to get them to cross and the chromosome # is the same. I too would like to cross different wild raspberry spp. to developed hybrid rubus.
I belive that things like Tayberry and Kotata berry and Sylvan, are similar chromosome #, but raspberries are usually diploid.