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2008 Vine Phenology for South Burlington, VT
at University of Vermont Horticulture Research Center

WINE GRAPES
'Corot Noir'
'Frontenac'
'LaCrescent'
'Marquette'
'Prarie Star'
'St. Croix'
'Traminette'
'Vignoles'
4/30/08
3.13
4.13
4.83
4.92
4.21
4.50
3.29
3.04
5/07/08
3.92
5.75
5.96
5.83
5.50
5.63
3.96
3.54
5/12/08
5.74
6.00
6.04
6.04
5.92
6.04
5.21
5.58
5/19/08
6.11
6.88
7.00
6.92
6.67
6.79
6.13
6.00
5/27/08
6.93
7.79
7.79
7.69
7.71
7.63
6.75
6.71
6/02/08
7.51
7.96
8.00
7.88
7.96
7.92
7.67
7.21
*6/09/08
7.96
8.29
8.13
8.25
8.00
8.17
7.92
8.00
6/16/08
8.46
9.63
9.71
9.40
8.67
9.67
7.96
8.54
6/23/08
8.85
10.38
10.50
10.17
9.00
10.13
8.88
9.67
6/30/08
na
na
na
na
na
na
na
na
**7/07/08
9.57
10.71
10.88
10.58
9.29
11.00
10.04
10.86

7/14/08
9.78
11.46
11.67
11.24
9.38
11.63
9.50
11.75
7/21/08
9.76
11.54
12.00
10.75
9.38
11.75
9.67
11.42
7/28/08
10.38
12.25
12.38
11.47
9.67
12.54
10.13
12.42
8/04/08
10.43
12.63
13.13
11.86
10.13
12.58
10.29
12.50
8/11/08
na
na
na
na
na
na
na
na

8/18/08
10.61
13.67
14.00
12.93
10.75
14.21
10.46
13.08
8/25/08
11.01
13.54
14.13
12.72
9.75
14.13
10.92
13.79
9/02/08
10.93
12.96
11.79
11.21
9.75
12.96
10.33
13.83

*Average phenology caculated at bloom is affected by the number of vines that did not set buds.
**Average phenology calculated after bloom is affected by the number of vines that did not set fruit.

WINE GRAPES - FRUIT ONLY: Fruit development is calculated using only vines with fruit present. Not all vines set fruit.

'Corot Noir'
'Frontenac'
'LaCrescent'
'Marquette'
'Prarie Star'
'St. Croix'
'Traminette'
'Vignoles'
6/16/08
na
na
na
11.00
na
na
na
na
6/23/08
na
11.00
11.00
11.00
11.00
11.00
na
na
6/30/08
na
na
na
na
na
na
na
na
7/07/08
11.00
11.24
11.40
11.13
11.10
11.28
11.00
11.00
7/14/08
11.72
12.14
12.17
11.88
12.20
12.11
11.00
11.75
7/21/08
12.00
12.15
12.36
12.05
12.20
12.29
11.50
11.89
7/28/08
12.83
12.88
13.00
12.67
13.00
12.96
12.50
12.81
8/04/08
13.00
13.29
13.85
13.21
13.77
13.00
13.00
12.89
8/11/08
na
na
na
na
na
na
na
na

8/18/08
13.44
14.83
14.85
14.79
14.70
14.79
13.31
13.78
8/25/08
14.31
15.00
15.00
14.96
15.00
15.00
14.31
14.94
9/02/08
14.80
15.00
15.00
15.00
15.00
15.00
15.00
15.00

TABLE GRAPES
'Beta'
'Concord'
'Einset'
'Mars'
'Reliance'
'Somerset Seedless'
'Swenson Red'
'Vanessa'
4/30/08
4.33
4.25
4.58
5.08
4.33
4.75
3.75
4.33
5/07/08
5.33
5.08
5.75
5.83
5.25
5.17
4.67
5.33
5/12/08
5.92
6.00
6.00
5.83
6.00
5.42
5.83
5.92
5/19/08
6.92
6.50
6.58
6.67
6.58
5.92
6.58
6.83
5/27/08
7.92
7.42
7.33
7.83
7.50
6.83
7.50
7.92
6/02/08
7.92
7.75
7.83
7.92
8.00
7.50
8.00
8.00
*6/09/08
8.92
8.00
8.00
8.00
8.00
7.92
8.00
8.00
6/16/08
10.17
9.00
8.17
8.17
8.83
8.58
8.25
8.08
6/23/08
10.75
9.08
8.17
8.50
9.42
9.08
9.08
8.50
6/30/08
na
na
na
na
na
na
na
na
**7/07/08
11.33
9.50
8.25
8.25
10.25
9.83
9.58
8.25
7/14/08
11.83
10.08
8.25
8.25
10.83
9.92
9.25
8.25
7/21/08
12.17
9.08
8.33
8.25
11.00
10.33
9.33
8.33
7/28/08
12.50
9.50
8.42
8.25
11.75
10.83
9.58
8.42
8/04/08
12.67
9.42
8.42
8.833
11.75
11.08
9.75
8.42
8/11/08
na
na
na
na
na
na
na
na

8/18/08
13.75
9.58
8.00
9.00
11.50
9.92
9.50
8.50
8/25/08
12.67
9.25
8.00
8.00
11.42
8.25
8.42
8.58
9/02/08
12.08
9.08
8.00
8.00
9.17
8.00
8.50
8.58

*Average phenology caculated at bloom is affected by the number of vines that did not set buds.
**Average phenology calculated after bloom is affected by the number of vines that did not set fruit.

TABLE GRAPES - FRUIT ONLY: Fruit development is calculated using only vines with fruit present. Not all vines set fruit.
'Beta'
'Concord'
'Einset'
'Mars'
'Reliance'
'Somerset Seedless'
'Swenson Red'
'Vanessa'
6/16/08
11.00
na
na
na
na
na
na
na
6/23/08
11.00
11.00
na
na
11.00
11.00
11.00
na
6/30/08
na
na
na
na
na
na
na
na
7/07/08
11.67
11.00
11.00
11.00
11.00
11.20
11.20
11.00
7/14/08
12.58
11.10
11.00
11.00
11.80
11.90
11.75
11.00
7/21/08
12.58
11.33
12.00
11.00
12.00
12.10
12.00
12.00
7/28/08
12.92
11.63
13.00
11.00
13.00
12.90
12.75
13.00
8/04/08
13.08
12.17
13.00
12.00
13.00
13.30
13.25
13.00
8/11/08
na
na
na
na
na
na
na
na

8/18/08
14.25
12.50
na
14.00
14.00
13.66
14.00
14.00
8/25/08
15.00
12.50
na
na
14.88
11.00
13.00
15.00
9/02/08
15.00
14.50
na
na
15.00
na
14.00
15.00

PHENOLOGY GROWTH STAGE VALUES SCALE***

1
 Dormant
9
 First Bloom
2
 Scale Crack
10
 Bloom
3
 Early Bud Swell
11
 Buckshot Berries
4
 Late Bud Swell
12
 Berry Touch
5
 Bud Burst
13
 Green Fruit
6
 1-3" Shoot
14
 Veraison
7
 4-8" Shoot
..15..
 Colored Fruit
...8...
 10-16" Shoot
16
Harvest

***See Michagan State Fruit Growth Stage Reference for definitions of stages.
Please send comments and suggestions to: lorraine.berkett@uvm.edu
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