This is moderate frost damage. The spurs either side of the middle one seem to be OK and healthy but you can see in the middle spur the shoot tips and leaves have been hit. This shoot probably wont make it. No leaves remain to photosynthesize and the tip is ruined so wont grow any longer. A secondary bud may emerge but it is already well behind the remaining healthy shoots so will probably have to be removed or will end up as an unripe bunch in the harvest.
2 comments:
Do you think , that already the period of frost injury it's gone, wich is the probability of get another frost damage at this time midle october??
Cheers from Chile!!
I remember the 10th November 2006.
We had a great frost then, and the wind machines were not able to protect the whole vineyard.
The frost damage really caused a lot of damage, because it creates such a great amount of additional work and drives the costs up for running a vineyard.
If you also have varieties that are sensitive to spur pruning, your even in for more trouble.
So far in this season we have had 9 nights, in which we had our wind machines running to protect from frost damage.
But looking at that 10th November 2006 again, frost season is not over yet.
It also may happen occasionally that even in mid summer (January) night temperatures drop to almost 0°C . Welcome to cool climate New Zealand!
Cheers from Masterton and from our German Vintage at the Kaiserstuhl (near France/Alsace).
Patrick
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