With almond and pistachio harvests winding down, California growers are shifting attention to post-harvest irrigation, orchard drainage, sanitation and soil management ahead of the 2027 crop. An October 28 industry update in West Coast Nut points to a heightened risk of a wetter-than-normal winter in northern California.
Adequate fall irrigation remains important while leaves are active, but growers are also being advised to prepare drainage routes to reduce the risk of saturated soils, anoxia and Phytophthora root and crown rot. Orchard access for winter sanitation and pest-control work can also become more difficult during prolonged wet periods.
The guidance also highlights cover crops and mulch as tools to slow runoff, reduce erosion and improve water infiltration. These practices link water efficiency and orchard resilience with preparations for the next production cycle.
