My Crimson Seedless vine isn't PD infested at this time, and this doc gives me some some hope that it might be somewhat resistant. That said, this Summer I finger smashed a lot of sharpshooters feeding on the vine. Some days I smashed as many as 10 within an hour. This is really a shame as CS has given me super sweet grapes that are still holding well as we speak. What a heart breaker it would be to lose this vine. It seems odd/questionable that nurseries would even sell PD prone grape varieties in areas that are known to carry the disease.

You will find Grape and Plum used interchangeably on several websites. IMO, plum tomatoes should be larger than grapes. Riesentraube is worth growing for rich intense flavor and reliable production. Wheatly's Frost Resistant is a pink plum tomato with very heavy production and very good flavor. Grape - this is the red grape tomato that pretty must sets the baseline. Sprite - which you mention is a very good grape variety. I am partial to Sakura Honey though seed are difficult to find. It is in between a plum and a grape. It is also a commercial pink hybrid, not exactly what you asked for. Sugary is another commercial extra sweet red grape tomato.

Cane pruning increases the yield of some varieties that don't have fruitful buds when spur pruned. When last yrs canes are cut back to 3-4 buds for spur pruning of certain varieties, those buds don't produce fruit. Those are the varieties that should be cane pruned. For many cultivars either method works. Yield can be easily adjusted with cane pruning based on how many buds are left and how many clusters are removed. Getting yield isn't the issue. The issue is how many clusters can one leave without reducing quality, sweetness, too much.

Hi there gurus, I'm after an ornamental grape vine (I expect these would be faster growing than fruiting ones) to grow across the back of my new home that faces west nor west with 10 metres of floor to ceiling glass, so seriously need cooling leaves for summer. I'm in a region that experienced a succession of unusual -10s. Goulburn NSW. Can someone here recommend a variety that can withstand hard frosts, is a fast grower with limited diseases? Thank you, cheers, Pete