PIWI grapes cross vinifera with wild American and Asian vines to carry the resistance vinifera never had. The German Wine Institute puts the payoff plainly: plant-protection measures cut by up to 80 percent.
Viticulture
A high trellis lets the flock stay in the vines year-round, ending herbicide use and cutting tractor passes. The catch is methane, which is why the real case for vineyard sheep is land-use efficiency, not a greener bottle.
Before the sun has cleared the trellis line, a viticulturist in Fresno walks the headland to the irrigation controller mounted…
The first time a wine chemist isolated the molecule responsible for the green-pepper aroma in Cabernet Franc, the gas chromatograph…