Sacramento Valley Orchard Source

This article briefly reviews our observations since early June in orchards either directly flooded in the river bottoms or those indirectly flooded with standing water for months via under-levee seepage.

This is the weekly IPM pest update from Tehama county, with biofixes and trap activity for: codling moth, oriental fruit moth, peach twig borer, navel orangeworm, San Jose scale, and walnut scale.

As orchards age, yields decline for a number of reasons and eventually the decision is made to remove the orchard. The age at which an orchard is pulled is a unique decision for each block, depending on yield, price, demand, and resources. Here are a number of recommended steps in removing an orchard, especially when preparing to replant that orchard into walnuts again.

Harvest of the earliest walnut varieties has begun in some locations. Plan accordingly to obtain the ever-important harvest samples! Harvest samples can reveal a number of common sources of kernel, shell, and hull damage. These include damage caused by insect pests, diseases, and environmental/physiological factors. Here are information, tables, and photos that can help identify the sources of damage in your walnut harvest samples.

Irrigation Evapotranspiration (ET) Report for the Woodland, Davis, Dixon and Verona CIMIS stations.