Nor Cal spring frost

Apr 24, 2008 5 Replies

A few days ago, we had an unusually cold air mass move in. Vines all over Northern Cal were affected. Vineyards with frost protection systems fared better than those without, but many were pretty severely frost bitten.



The press has been pretty slow to pick up on the story, but I noticed a report on the Nor Cal NBC network tonight, and WineBusiness has put up a couple reports over the last 2 days. No-one will know for sure just how much crop has been lost, but some vineyards may see as much as 50% crop loss, based on initial damage reports.



Yours truly got hit pretty hard. No frost protection systems, and we're fairly high in elevation (about 2800'). Maybe as many as 75% of the primary shoots were fried. Hopefully the secondary growth will carry some fruit.



Following is a link to one of the Napa Vlley press reports, as well as a link to a pic from my vineyard earlier today.



Rough start to an otherwise promising season.



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/23/2008



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Ouch! My sympathies, Ric. Thanks for the update, though. That's the first I'd heard of it. Last time I spoke with my mother, it was sweltering in the Bay Area. Oh, well.

Best of luck to you, Mark Lipton

What will happen with vines due to frost?

Lower yields but more complexity?

No yields?

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/23/2008

Drastically lower yields.

In the norhtern areas of France losses have reached as high as 60% or more in some areas. Champagne not too bad, Loire heavily hit.

Complexity would depend on the resto of the season...

Mike

Richard Neidich wrote:

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/23/2008

I've had conversations with friends in the Bordelais who indicate significant crop loss there too. Pessac was mentioned...

Hope the "Beagles" will see some secondary buds.

True, but often if there is a secondary fruiting we see reduced yields but increased concentration (predictably).

-E

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/23/2008

First and foremost - drastically reduced yield.

Concentration as a result of drastic yield is speculative. Older vines often bear less, but more concentrated fruit. It is commonplace to cull fruit from younger, higher producing vines in areas where the sooil and climate is such that the vines tend to over-produce. Assuming the grower is already managing their crop for quality, then the loss of such magnitude is unlikely to cause improved qualiy.

As someone else pointed out, quality is really dependent on the existing soil, climate and management practices - and on what happens to the vines and berries the rest of the year.

Sec> What will happen with vines due to frost?

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/23/2008

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