Pruning weights below are total for 10 vines sampled.
Block 2/17/09 3/1/08 2/15/07 12/10/05 05 pruning wt/06Bunch counts est. weight
Block 1 6 lbs. 13 lbs. 11 lbs. 12 lbs. 3.6
Carmenere 17 lbs NA 14 19 2.5
Block 1 02 -191 11 lbs. NA 16 16 NA 2002 replants
Block 2 Old Vines 25 lbs. 34 30 46 1.7
Block 3 upper 13 lbs. 10 8.5 6 8.8 different vines used 2/09
Block 3 lower 8 lbs. 7 NA 7 5.6
Block 4 Cab NA NA 18 12 4.2
Block 4 Merlot 17 lbs. 20 16 8 5.8
Merlot Harvest weight 2007= 1283 lbs. for 166 vines or 7.7 lbs/vine, Pruning Wt 2 lbs/vine Fruit/Prunings = 3.85 which is toward the high end but good. Cab total was 16 tons, 32000 lbs 32000/3900vines = 8.2 lbs/vine Ave. pruning wt. 1.3 lbs not counting old vines Fruit/Prunings = 8.2/1.3 = 6.3 which is high but probably because the average pruning weight was really higher.
Expected Fruit to Pruning Weight ratio for Napa Valley 1.9-4.5 (ave. 3.0)
Last Updated by M.Holler 2/17/09