USA Almond Market Update, May 2022
The trend of variable temperatures and windy conditions established in April continued to impact California’s Central Valley throughout May. While initiating a warming trend, daily maximum temperatures oscillated between the upper 60’s to near, or just over, 100 degrees in all areas. Meanwhile, morning lows followed the trend of the daily high readings, ranging between the mid 40’s to low and 60’s. Also, as in the previous period, low-pressure systems continued to sweep past the state generating brisk winds and the occasional threat of precipitation. While the scattered showers dampened areas of the valley early in the period, producing only trace amounts of rain, sustained winds of 10 to 20 mph with gusts to 25 and 30 mph were common on many days during the period.
Minimizing stress is a focal point of all activities. Practices during May are typically targeted at providing support to the growing crop as the nuts complete the process of solidification. As seen in an accompanying photo, the solidification process was well underway during the period, and nuts in all varieties have become fully solid, or nearly so, by the end of the month.
Water and nutrition are critical factors in bringing the crop to maturity and, ultimately, to harvest. As noted in previous reports, growers in the majority of the Central Valley are struggling to balance limited water supplies and expensive fertilizer costs as they work to support their crops. On the subject of water, the winds experienced during the period have provided a degree of frustration for many, increasing the orchard’s daily water requirements. Observers have noted a growing number of orchards exhibiting signs of water stress and /or the use of poor-quality water. Applications of fertilizer materials through the irrigation system, particularly low volume systems, is the method of choice, providing the most efficient means of application. Restricting water and/or nutrients at this stage of development can impact the weight of developing nuts and the growth of budwood needed for the following crop. The winds have also complicated some practices required to control insect infestations and broken branches in areas of the San Joaquin Valley with the best crop potential.
Many growers have been withholding weed control measures, limiting the number of passes with failed mowers to save the cost of fuel. As a result, observers have noted that many orchards have considerable weed growth in the orchard “middles,” the area between the tree rows. However, this vegetation must be reduced prior to shaking in order to provide for easy and efficient sweeping and removal of the crop during the harvest.