There is nothing uniform about walnut leafburst. After a winter snooze, some branches leap into life while others require a nudge to get going.
The branches captured on this overcast day display the variability. Some are about to develop flowers while others have hardly opened their eyes.
At this early point in time, the stages of development have implications for blight prevention and for kelp spraying. Copper is sprayed once 30% of leaves are at prayer phase to prevent blight. Kelp is mixed with the copper when flowers appear to boost nut development and root growth.
The orchard is changing on a daily basis at the moment.
Water requirements are shifting too. The growing trees require an adequate source – provided by overnight watering. But the integrity of the system must be checked by daylight surveillance and appropriate remediation.