The phrase "grape harvest" refers to the period when grapes are picked from the vineyards to be used for making various products such as wine, juice, or jelly. Full definition
Infographic: How is climate change affecting the timing of wine grape harvests in France? (carbonbrief.org)
Elsewhere in the Top 10, coming sixth is «Climate change decouples drought from early wine grape harvests in France» in Nature Climate Change. (carbonbrief.org)
He says it's difficult to forecast when supply and demand might move back into balance because of factors such as the size of grape harvests in other countries and the determination of local independent grape growers who might be running at a loss. (afr.com)