My objective is to grow tasty fruit from what is now a grapevine jungle!

Considerations to meet tasty fruit objective:

1. Fruit appears as small flowers around March
2. Plants have finite resources

Practices to restore vine balance between fruits and leaves:

1. Pick healthy, well positioned (not crowded or kinked) one-year old canes and leaves with 12 buds 

2. Cut off tips of canes beyond 12 -15 buds and prune off all laterals on this cane 

3. Cut of 2 year or older canes 

4. A renewal spur is a one year cane that is not chosen to be one of your fruiting long canes and cut short (1 to 3 buds depending on cane diameter (really thick canes leave 3 buds, really thin canes leave one bud, average canes leave 2 buds). These will be your one year fruiting canes for next year. 

5. Leave 1.5 renewal buds for every fruiting cane left on the vine. 

6. Manipulate fruiting canes to be spread out nice on the trellis and tie down. 

7. In the spring, when shoots are about one -2 inches, snap off sucker shoots with your finger (any shoot that does not come off your fruiting cane or renewal buds) 

8. From flowering, fruit set, pea size to beyond verasion (fruit softening and/or coloring) thin out clusters (leave one to two healthy clusters per node) so that they do not crowd each other. If the fruit are to close together or in the shade they will not sweeten. if there are too many clusters, they will not ripen. Use common sense and good judgment, resist greed. 

9. Sulfur dust at budbreak, at 6 inch shoot length and every 2-3 weeks after or as needed to control powdery mildew or your fruit will not ripen.

Other thoughts:

1. Use sharp pruners
2. Experiment
3. Observe