Jackie Dresser, Viticulture Extension Support Specialist at the Lake Erie Regional Grape Program talks about why estimating vineyard yields is so difficult and the methods she and her team are experimenting with to reach the Holy Grail of estimates that are within five percent of the final harvest. In part two of this two part interview, Jackie explored the golden question: how many samples and how big. She talks about how they sought a reasonable sample size and the future of crop estimation.

References:

• Efficient Vineyard website
• Lake Erie Regional Grape Program website
• Predicting Harvest Yield in Juice and Winegrape Vineyards | Paolo Sabbatini, Imed Dami, G. Stanley Howell
• Theory and Assumptions Behind Sampling | Craig Macmillan
• Vineyard Yield Estimation | Brittany Kom & Michelle Moyer, WSU

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