Climate change leads to extreme weather events as spring frost, heat wave, drought which are more frequent and unpredictable across vintages.
Spring frost will affect the yield per vine and per hectare and will impact on vineyard sustainability.
Obvioulsy heat waves and drought impact on vine functioning, berry development and composition and wine aromatic profiles (increase in alcohol, decrease in acidity, evolution of aromas, deficiency of wine freshness…).
In that regards, late pruning reasonned according to grapevine phenological stages and physiological functioning will allow the following :
– To delay budbreak to avoid frost damage of the growing latent buds
– To delay flowering, veraison and ripening and harvest date that could lead to more fresh and equilibrated wines
This article is explaining how to manage late pruning according to some vine physiological principles and stages (dormancy, vine prebudbreak bleeding, acrotony, phyllochron, carbohydrate reserves evolution from bud break onwards…).
This allows to practice what could be called « Late Precision Pruning : LPP ».