(Teatronaturale) - Mechanization reduces expenses but doesn’t normally provide the operational flexibility which is required by climate changes for the safeguard of quantity and quality. Never like this year has the vine defoliation been so important. Defoliation is a very delicate practice since it can be very helpful in the maturation stage and in preventing some pathologies. At the same time, though, it can have some boomerang effects for the vineyard, in particular for the one which work strictly with the calendar without a proper evaluation of the climate conditions.