Jan. 31, 2018
Both almonds and walnuts can suffer yield loss from sun damage. Walnuts are particularly susceptible to sun damage. Sun damage in walnuts darkens and shrivels one side of the shell and kernel1. Sun damaged walnuts result in downgraded status by nut processors and can result in losses of $0.10 to $0.12 per pound for growers (which is the difference between class 1 class 2 in quality)2. Furthermore, if any of the sunburned nuts are rejected rather than downgraded, growers potentially will experience total monetary loss for damaged crops. There are more than 1 million bearing acres of almonds and an estimated 335,000 bearing acres of walnuts3.
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