Yearly Archives: 2016

Fall Zinc and Boron Applications

A fall spray is a cost effective way to get zinc or boron into buds for the following year’s bloom. The return on investment for a fall B spray can be significant. Fall Zn sprays should increase leaf Zn the following year and eliminate Zn deficiency symptoms while reducing the consequences of any phytotoxicity resulting from zinc applications at this time compared to earlier in the season. The following are tips that may help maximize the benefit from a fall Zn and/or B spray. Continue reading

Northern California Cropping and Irrigation Patterns (Part 2)

Methods of irrigation have also changed from flood and furrow to drip, micro sprinkler, solid set sprinkler, and buried drip. Today, there are about 203,000 acres of land in the northern Sacramento Valley irrigated with pressurized systems that were not in place approximately a decade ago. Continue reading

Walnut Husk Fly – Updates

Walnut husk fly (WHF) continues to plague walnut production in many areas, often requiring multiple insecticide applications each growing season to achieve adequate control. This pest provides particular challenges to an integrated pest management program due to the nature of its life cycle and lack of natural enemies. Precise timing based on monitoring method and rotation of chemistries to minimize resistance risk are keys to successful long-term control of this pest. Continue reading