Appleman...these would be Valiant Grapes...
<div ="h1-left2"><h1>Valiant Grape Details</span></h1>
This
red wine producing grape, reportedly cold-hardy to -70 F (approx. -52
C), has lived up to its name in some harsh winter conditions. Valiant
is grown in South Dakota, Minnesota, and other parts of the continental
Midwest. Valiant is also grown in the Canadian prairie provinces, where
reportedly it does not require protection from the elements, wintering
above ground instead of the usual 'hilling-up' required for most
varieties subjected to similar conditions. The vine was developed by
Dr. Ron Peterson at South Dakota State University from a Fredonia x
Wild Montana (Vitis riparia) cross. It is mostly used in blends, but is
also made into jelly, and consumed as a table grape. Ripening about
three weeks prior to Concord, it typically produces grapes with low
acid levels and high sugars</font> </span>
We have been making breakfast juice with this grape for years....then once we started making wine thought we'd try it. I makes a pretty good wine but always drops 'wine-diamonds'.....It even drops wine diamonds in our mason jars of breakfast juices...so it is high in some sort of acid...even tho it claims to be low in acids in the above description...
This variety needs a good spray program, I was plagued with downy mildew and black rot in past years....Then I cleaned up my act, removed the mulch from around those rows, removed all the mummies and work up the soil underneath the vines....it sure made a huge difference....Some years it looks like I really wouldn't need to spray, but try to get it done.
Guess I did roach off too many leaves....Know for sure they will grow more, they are a very aggressive grower....They should ripen okay...last year I did keep checking the Brix and actually forget what they got to, I think it was in the high teens...18* Brix or some where near that. Looks like there will be good yeild on some of the mid aged vines....the youngest vines should produce well next year.