This column describes a new systematic approach to overcome trunk diseases in mature vineyards. The basic concept of timely trunk renewal (TTR) is certainly not new, but
the application to trunk disease — especially to entire vineyard blocks — is practiced by very few growers. Trunk renewal is not a new process for California. University of California Extension workers Jim Kissler and Bob Sisson used trunk and cordon renewal in the 1980s and showed that that retraining from the cordon or the trunk works very well for infected vines.
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15. Artigo_Richard_Smart
Projecto financiado ao abrigo do programa de investigação e inovação da União Europeia 'Horizonte 2020', sob o acordo de subvenção nº 652601
