Credit: Laurie Jervis / Noozhawk photo Very early this year, viticulturist Alex Milholland drove me to a small vineyard he planted and manages behind a home off Fredensborg Canyon Road in Solvang.

some smaller vineyards are more skeptical about their ability to use the technology. Small, family-owned operations, which Camillo said account for about 80% of the wine business in America ...