FROST MANAGEMENT STRATEGIES FOR VINEYARDS

The rarity of early season frosts is among the many natural assets of California that lend themselves to winegrape growing.  Still, when frosts occur the results can be economically devastating, with low revenues for the growing season due to significant yield loss...

NITROGEN FERTILIZER FORMS

by Stan Grant, Viticulturist It is a fact: chemistry is fundamental to life. It is also a primary means to directly influence grapevines, especially their mineral nutrition. Thankfully, our modern mineral nutrient toolbox includes a wide array of chemical tools for...

SELECTING A ROOTSTOCK FOR A WINEGRAPE VINEYARD

OCTOBER 7, 2016. BY STAN GRANT. For over 130 years, rootstocks have been available to protect grapevines form soilborne pests. From the beginning, rootstocks have displayed varying influences on the composite grapevine created by grafting. These include influences on...

COMPARATIVE WINE GROWING CLIMATOLOGY

Climate is of paramount importance to winegrape growing. The seasonal pattern of sunlight, temperature, rainfall, and humidity influences both above ground and below ground vineyard environments. It sets the length of growing seasons and influences the likelihood of...