Mid Season Report - Whites

As August rolls in it is time to provide an update on where the white vines are.  To date our summer has been very hot and dry and everything appears to be further along then last year.  We have increased our irrigation over last year based on less water retention in the lower (west side) of the vineyard (see blog dated August 11, 2014). It seems to have made a difference in some of the rows, but in others a portion of the vines still struggle.

Our spraying program is much better this year.  We have been using Serenade Max and Kumulus DF with better success than last year; however some vines are still showing signs of powdery mildew, particularly Ortega.

Overall everything planted on the southern end perform much better.   All observations below based on data collected August 3, 2015, unless noted.

Blattner

Petit Milo

Petit Milo: small-med berries in fairly tight bunches.  No signs of powdery mildew (PM) or other issues. Very nice growth on south portion.

Epicure: Small berries in loose bunches.   The vines look good, no signs of PM and not overly vigorous.

48-05-49: Medium size berries in loose bunches. low vigor, but consistent growth in row.

Remaining Varieties

Siegerrebbe: Medium berries in semi-tight bunches.  Low vigor. No PM visible and vines look healthy. UPDATE: as of August 9, veraison was present on some vines.

Powdery Mildew on Ortega grapes

L'Acadia Blanc: small berries in loose bunches. .  Overall vines look healthy but low vigor. No PM visible. UPDATE: as of August 9, veraison was present on some vines.

Ortega: Medium berries and semi-tight bunches.  Noticed PM on some stocks and fruit so cut off ~2 gallons of fruit. UPDATE: as of August 9, more PM present so all fruit is getting cut off.

Chardonnay: Medium berries in tight bunches.  PM visible on some vines and fruit. UPDATE: as of August 9, about 15% vines shows signs of PM.

Osceolo Muscat: Small-medium berries in loose bunches. shows signs of berries drying out.  Lots of vigor no PM signs.

Auxerrois: Medium berries in loose bunches. This variety struggled last year so we did not allow much fruit to hang. No PM visible and vines look healthy, although quite a few are still struggling, more so at the northern end.

Siegerrebbe

Madeliene Sylvanor: Medium berries in loose bunches.  Significantly better at southern end. No PM visible and vines look healthy. UPDATE: as of August 9, about 15% vines shows slight signs of PM.

Madeliene Angevine: Medium berries in loose bunches, not a lot of fruit present.  Significantly better at southern end. No PM visible with low vigor.

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