Updated 10/25/18; Originally posted July 2018. Janine Hasey, UCCE Tree Crops Advisor Sutter/ Yuba/ Colusa Counties; Bruce Lampinen, UCCE Walnut Specialist, UC Davis; Katherine Jarvis-Shean, UCCE Orchard Advisor Sacramento, Solano & Yolo Cos. Early walnut tree training begins at the time of … Continue reading →