Grapes have two distinct growth phases. The first phase is when the cells divide and expand and the grapes begin to swell and fill out the bunch. Veraison is when they move to the second phase, when the acidity decreases and sugars are accumulated which gives them colour.
The level of sugar accumulation in the berries is dependant on leaf photosynthesis, which is why we could do with some more sun! As we have a lot of fruit on the vines this year its going to be quite a struggle to get them ripe and as a result the harvest is likely to be in the second half of October or even early November. The later it gets the more prone we are to botrytis bunch rot.
As the fruit begins to ripen it becomes more attractive to the birds (and the pheasant) so we have started to deploy the Hawkites and will be netting parts of the vineyard.
There's always something to worry about on the vineyard!