How to obtain the reduction of millerandage and rachis elongation in wine grapes

The correct development of grape bunches is influenced by several factors. Among them, we find millerandage and an excessive firmness of the grape bunch, both of which can be due to the genetic characteristics of some grapes.

ALGAREN TWIN - Green Has Italia
ALGAREN TWIN - Green Has Italia

The presence of millerandage is reflected in the lower quality of the grapes, which is due to a non-homogeneous ripening of the bunch, a non-uniform ripening of the grape and consequently to a higher percentage of malic acid in the musts.
Thanks to Expando, a specific biostimulant, it is possible to effectively intervene on this issue, by increasing the setting and, in varieties or clones that present a firm bunch, by maximizing the rachis elongation.
This strategy allows to avoid phenomena of compression inside the grape bunch, and to uniform the dimensions of the bunches and their level of ripening.

Expando doses 3,5-4,5 l/ha:
    1° application: inflorescences clearly visible or in presence of 6 leaves at least
    2° application: inflorescences fully developed, flowers separating
    3° application: flower hoods fall